Chapter IX
Logistics

Section		Page
I.	Classification of Marine Corps matériel	201
II.	Administrative plans	202
III.	Embarkation	205
IV.	Transport loading	211
V.	System of supply	221
VI.	Military police	226
VII.	Engineers	226
VIII.	Medical service	230

Section I
Classification of Marine Corps Matériel

Par.
901.	Equipment and supplies	201
902.	Grouping of equipment and supplies	201
903.	Explanation of groupings	201
904.	Issue of equipment	202
905.	Issue of supplies	202

901. Equipment and supplies.--

     1. Marine Corps expeditionary matériel is classified and divided into groups for the purpose of facilitating plans and orders relative to the equipment and supply or organizations and the movement of matériel, particularly its loading and stowage aboard ship and its debarkation and issue ashore.

     2. Matériel is divided into two general classifications, as follows:

        1. Equipment, which includes all articles prescribed for initial issue to individual and organizations.

        2. Supplies, which includes all articles required for maintenance of organizations.

902. Grouping of equipment and supplies.--Equipment and supplies are divided into groups, as follows:

     1. Equipment.--

        Group 1.	Individual equipment.
        2.	Baggage.
        3.	Office equipment.
        4.	Organization combat equipment.
        5.	Supplementary equipment.
        6.	Mess equipment
        7.	Camp equipment.
        8.	Transportation.
        9.	Special equipment.

     2. Supplies.--

        Group 10.	Ammunition.
        11.	Automatic supplies.
        12.	Replacements.
        13.	Post exchange supplies.

903. Explanation of groupings.--

     1. Equipment.--

        GROUP 1. Individual equipment.--This includes that equipment needed in field operations and combat which is issued to the individual officers and men, and is normally carried on their persons. The weight of a marine with his individual combat equipment averages 224 pounds, or one-tenth of a long ton. No hold space is required for this group.

        GROUP 2. Baggage.--This includes trunk lockers, sea bags, etc. Provision should be made for stowage of this group in troop compartments or other suitable space where it will be available during the voyage.

GROUP 3. Office equipment.--This includes organization records, stationery, field desks, typewriters, etc. This equipment will be needed during the voyage and should be stowed in space assigned as organization offices.

GROUP 4. Organization combat equipment.--This includes equipment essential in combat but not issued to individuals, such as tanks, howitzers, machine guns, hand-drawn carts, signal and medical equipment. This equipment must be so loaded as to be available to accompany troops ashore.

GROUP 5. Supplementary equipment.--This includes miscellaneous company, battery, or squadron property such as cleaning material, spare parts for weapons, and other items which, while not absolutely essential in combat, may be needed early in active operations.

GROUP 6. Missing equipment.--This includes equipment required to operate a mess in the field, such as ranges, water cans, etc. This equipment will be needed shortly after a landing is effected. It may be loaded on organization vehicles prior to embarkation.

GROUP 7. Camp equipment.--This includes tentage and other articles required for the establishment of a camp. As this equipment will not be needed until the situation on shore has become somewhat stabilized, it may be stowed below other matériel.

GROUP 8. Transportation.--This includes motor vehicles, such as trucks, tractors, ambulances, etc. Some of these vehicles, such as artillery tractors, may be required in combat. Special consideration must be given to the stowage of this group.

GROUP 9. Special equipment.--This group includes matériel, not included in standard equipment, but determined as essential to the contemplated operation such as barbed wire, construction materials, etc. The articles to be carried, the amount of each, and priority of loading must be decided in planning each operation.

2. Supplies.--

   GROUP 10. Ammunition.--This group includes all types of ammunition, including chemicals, pyrotechnics, and demolition explosives. A part of this ammunition must be available for issue to troops before landing; the remainder must be available for landing as required.

   GROUP 11.--Automatic supplies.--This includes supplies such as subsistence, kerosene, gasoline, and oils which are consumed at a fairly uniform daily rate in any type of operation. This group should be stowed so that at least 2 days' supply will be available for issue to troops prior to landing; from 3 to 5 days should be available for landing immediately following the troops, and the remainder thereafter as required.

   GROUP 12. Replacements.--This includes replacements for articles of initial issue. Replacements should not be required for several days after landing.

   GROUP 13. Post exchange supplies.--This includes articles intended for sale by the post exchange. They should be stowed so that essential articles may be supplied daily.

904. Issue of equipment.--In order to maintain the mobility of units it is desirable to issue to organizations (companies, batteries, and squadrons), prior to embarkation, only that equipment which is essential in combat and field operations. In general, this essential equipment consists of the items listed in groups 1 to 6, inclusive, and group 8. The equipment which is not issued to organizations is carried by designated quartermasters and kept available for issue to organizations when required.

905. Issue of supplies.--

     1. The amount of supplies is expressed in units of fire for ammunition, and number of days, preferably in multiples of 30 for other supplies. One unit of fire is estimated as sufficient for 1 day's average fighting.

     2. The bulk of the supplies are carried by quartermasters of regimental and higher units and are issued to organizations as required. Limited amounts of ammunition, rations, and other essential supplies may be issued to organizations prior to embarkation.

Section II
Administrative Plans

Par.
906.	General	203
907.	Basic decisions	203
908.	Characteristics of the base	203
909.	Strength and composition of the landing force	203
910.	Personnel replacements	203
911.	Matériel of the landing force	203
912.	Supplies carried in the initial movement	204
913.	Special naval personnel and matériel	205

906. General.--

     1. Administrative plans for an overseas operation must be prepared in detail prior to embarkation. Inadequate administrative measures and a consequent breakdown of the supply system may result in the failure of the operation regardless of tactical success. Problems involved in the planning and execution of administrative measures must be worked out jointly by all echelons of the forces involved. In minor operations, or where serious enemy opposition at a beach is not expected, the administrative steps outlined in this chapter may be appropriately modified.

     2. Administrative plans must be based upon the probable tactical requirements of the landing operations contemplated. All plans, however, must be susceptible to modification due to changes in the situation which may occur prior to the actual landing. It is important, therefore, that the administrative plans permit a force landing in any one of a number of localities in the theater of operations.

     3. Estimates of supply requirements must be liberal, particularly when contemplated operations are to take place at considerable distances from supply bases. The estimates must consider possible enemy interference en route, and the loss or detachment of one or more ships with their cargoes.

     4. Administrative plans must take into account the probability of adverse weather conditions after the initial landing is effected. An adequate reserve of supplies must be established on shore without delay, and provision made for maintaining this supply in any condition of weather.

     5. Administrative plans must provide for shipment of supplies by later convoys in time to maintain supplies in the theater of operations at adequate levels.

907. Basic decisions.--Basic decisions relative to administrative plans must be made as early as possible in order that all agencies may have time to complete details and provide for the procurement and assembly of ships, personnel, boats, supplies, and matériel. Basic decisions should cover the following:

     Characteristics of the base, if one is to be established.
     Strength and composition of the landing force.
     Personnel replacements.
     Matériel of the landing force.
     Supplies to be taken in the initial movement.
     Additional naval personnel and material to be provided.

908. Characteristics of the base.--If a base is to be established its characteristics must be determined in advance in order that the proper equipment and material may be available to construct it.

909. Strength and composition of the landing force.--

     1. The composition of the combat elements of the landing force is determined from tactical requirements. The composition of the service elements such as medical, transport, engineers, and military police should meet the administrative requirements of the contemplated operation. The organization prescribed in Marine Corps Organization Tables should be modified as necessary to meet these conditions.

     2. Civilian labor.--In order to reduce the number of service troops to be transported, plans should be made for utilizing civilian labor which may be available in the theater of operations.

910. Personnel replacements.--The number of personnel replacements to be provided for the landing force will depend upon the type of operation and estimated casualties from sickness and battle. These replacements should be available to the force when needed in order that veteran organizations may be maintained at full strength. Past experience has demonstrated the advantage of maintaining existing units at effective strength over the system of raising or employing new units. It is, therefore, desirable that replacements equal to the estimated casualties for a period of 30 days after the first landing be included in the initial movement, and that later replacements be available as they are needed. Since casualties in a landing operation are likely to be high initially, estimates or replacements to accompany the force should be liberal.

911. Matériel of the landing force.--

     1. Standard equipment for units of the Fleet Marine Force is prescribed by Marine Corps Equipment and Supply tables. This matériel is designed primarily for the type of operations contemplated in this manual, but certain decisions relative thereto are essential for any particular operation or for any particular theater. Among others, the following items must be considered:

     2. Motor transport.--The system of supply of units of the Fleet Marine Force operating ashore is based upon the use of light motorized vehicles. Animal transportation is confined to what may be obtained locally. The amount and type of motor transportation needed will vary,

depending largely on the nature of the terrain and the depth of advance contemplated. Estimates may indicate the advisability of an increase, decrease, or change of type from that specified in equipment tables. It should be noted, however, that a decision to decrease the motor transportation materially will preclude the adoption of an alternate plan in which such transportation is essential. In most operations, tractors and trailers can be used advantageously in clearing flying fields and moving matériel on or near the beaches, thus permitting a reduction in the size of working parties.
3. Special equipment.--

   1. This group is important in determining cargo requirements as it includes such bulky cargo as engineer and construction material, material for organization of the ground, and other material that may be required for special purposes. The items to be carried and the amounts of each must be decided according to the estimated needs in any particular operation.

   2. The amount of construction material taken on the initial movement should ordinarily be limited. Tentage, which is a part of the standard equipment of marine units, is available and can be used for sheltering personnel and matériel. When the situation becomes stabilized or a base is established, temporary buildings for hospitals, storehouses, mess halls, etc., may be advisable. Construction materials for these purposes may be shipped on later convoys as a part of the base requirements.

4. Ammunition.--Decision must be made as to the types and amounts of ammunition and explosives to be taken. The transportation of high explosives presents a stowage problem which may require alteration of transports or provision of ammunition ships.

5. Rations.--Attention must be given to the procurement of suitable reserve rations in containers convenient for carrying on the individual. Unless there is time for manufacture of specially designed reserve rations, the components will have to be confined to articles which are put up commercially in small cans or packages which can be procured in the necessary quantities.

6. Method of transporting airplanes.--Due to their weight and bulk, the transportation of aircraft of the landing force must receive special consideration. If planes cannot be flown to the landing area they may be carried as follows:

   Set up on carriers (landplanes).
   Set up on transports or other vessels (seaplanes).
   Partially set up on transports.
   Crated.

   It is most desirable that catapults be installed on train vessels to as great an extent as practicable, and all train vessels, transports, and cargo ships be loaded with the maximum number of set-up aircraft consistent with deck cargo requirements for boats and other special matériel. The method of transportation will materially affect the shipping requirements of the landing force, and the requirements in lighters and other landing facilities. (See ch. VI, Aviation.)

7. Gasoline and oil.--The requirements of aviation units in gasoline are so large that it may be necessary to transport the bulk of the supply in tankers or cargo vessels. Gasoline and oil needed initially for motor transportation should be made available on the transports carrying the vehicles. An adequate supply of drums should be provided for landing gasoline carried in bulk.
912. Supplies carried in the initial movement.--

     1. Decision must be made as to the length of time for which supplies will be carried in the initial movement. This is governed largely by the following factors:

        Availability of stocks of supplies.
        Amount of cargo space in the ships available for the initial movement.
        Availability of future shipping.
        Desirability of limiting the size of the initial convoy.
        Distance of the theater of operations from supply bases.
        Danger of interruption of supply by enemy activities.
        Resources in theater of operations.

     2. The decision as to supplies should cover--

        The amount to be carried for subsistence of crews and troops en route, to be provided by the Navy.

        The amount to be carried by the landing force for use on shore.

3. Adequate provision should be made for the sale to troops of the necessary articles from ships' stores, ships' service stores, and post exchanges, both en route and ashore, or for the issue of such articles without charge.
913. Special naval personnel and matériel.--

     1. Personnel.--

        1. The large number of small craft to be operated, the beach party personnel to be provided, the additional communications and gunnery personnel required on shore, and the need of rapidly unloading supplies from ships necessitate the provision of commissioned and enlisted personnel in addition to that of the normal ships' complements. This personnel should be composed of qualified naval ranks and ratings in numbers suitable to the tasks to be performed. Provision should be made for their early assembly, organization, and training.

        2. Medical personnel, both commissioned and enlisted, in addition to the regular medical complements, should be provided for transports in sufficient numbers to take care of the wounded for whom there may be no space available in hospital ships or facilities ashore. Provision should also be made for the assignment of medical personnel to ambulance boats and other small craft for the evacuation of casualties during the landing and subsequent operations on shore.

     2. Matériel.--Decision must be reached as to the naval matériel, in addition to normal equipment, which must be provided. The following should be considered:

        Ammunition for ships' guns, aviation, boat guns.

        Chemical ammunition and supplies.

        Communication matériel for boats, beach parties, transports, control vessels, and for fire control and liaison parties ashore.

        Boats, boat equipment, armament, matériel for repair and upkeep, gasoline and oil, and special boats for heavy matériel.

        Special gear for debarkation of troops and matériel from transport into boats.

        Wharves and special equipment for landing matériel ashore.

        Construction materials and equipment for initial requirements of a base, if a base is to be established.

        Medical matériel for ambulance boats, and transports to be used as auxiliary hospital ships.

        Ships for distilling water, portable distilling plants, water barges, pumps, and other matériel for delivery of water ashore.

Section III
Embarkation

Par.
914.	Embarkation plans	205
915.	Organization of the transport group	205
916.	Organization of the landing force for embarkation	206
917.	Sequence of planning	206
918.	Determination of shipping requirements	206
919.	Allotment of transports	207
920.	Embarkation groups and transport divisions	207
921.	Assignment of troops and matériel to transports	209
922.	Embarkation tables	210

914. Embarkation plans.--An embarkation plan includes (1) the allotment of transports to embark the landing force, (2) the determination of the troops and matériel to be embarked on each transport, and (3) the schedules of embarkation, showing time, place, and other details of loading each vessel.

915. Organization of the transport group.--

     1. The transports, or other noncombatant vessels, upon which troops and matériel of the landing force are embarked, constitute the transport group. Where certain elements of the landing force, such as base defense artillery, and other base defense units, will not accompany the initial movement, two or more transport groups may be organized.

     2. The transport division is a subdivision of the transport group, and consists of two or more vessels.

     3. When two or more transport divisions are to operate together on an independent mission, they may be organized into a transport squadron.

916. Organization of the landing force for embarkation.--The subdivision of the landing force for embarkation will consist of (1) the organization of embarkation groups to be embarked upon transport divisions, and (2) the designation of troops and matériel to be embarked upon each ship.

917. Sequence of planning.--Plans for embarkation are best developed in the following sequence:

     Determination of shipping requirements.
     Allotment of transports.
     Organization of embarkation groups and transport divisions.
     Assignment of troops and matériel to each transport.

918. Determination of shipping requirements.--

     1. The basic decisions outlined in the preceding section have been approved, data relative to personnel may be obtained from Marine Corps Organization Tables. Marine Corps Tonnage Tables give the necessary data from which the detailed cargo requirements may be computed.

     2. Force personnel and tonnage table.--This table is prepared by the landing force and submitted to the appropriate naval commander. It shows the number of officers and men, the amount and type of matériel for each organization of the force, and for the force as a whole. It shows the amount of any matériel requiring special consideration in loading such as high

Force Personnel and Tonnage Table

	Personnel			Matériel
	Officers	Enlisted	Total	Hold cargo		Troop space cargo (cubic feet)	Deck cargo		Total cargo
				General cargo and vehicles (cubic feet)	High explosives (cubic feet)		Inflammables (cubic feet)	Uncrated planes, etc. (cubic feet)	Cubic feet	Long tons
Column No. 1	2	3	4	5	6	7	8	9	10	11
Division Special Troops
1st Marines
5th Marines
7th Marines
11 Marines (Arty)
Division Service Troops
1st Mar. Air. Wing
Airplanes
Force Supplies
Total
Footnotes: It is assumed that, prior to the preparation of this table, the basic decisions outlined in sec. II of this chapter have been made, particularly the number of days of supplies and the number of units of fire to be carried in the initial movement, and the method of transporting airplanes. Based upon these decisions, data necessary for computing cargo requirements for each organization or contained in Marine Corps Tonnage Tables. In the table, airplanes, crated, are considered as "General cargo" (column 5); airplanes to be carried on deck, as "Deck cargo" (column 9); any large vehicles or other matériel (no inflammables) which must be stowed on deck are considered as "deck cargo" (column 9). Tonnage figures under "Total cargo, long tons" (column 11), represent actual weight of matériel, and do not include weight of personnel. Footnotes should contain information necessary to clarify or supplement the table, such as: List and description of airplanes and other matériel requiring special consideration, amount of gasoline included under "Inflammables" (column 8), etc.

Figure 1.--Suggested form for force personnel and tonnage table.

explosives, inflammable matériel, and aircraft. A suggested form for a force personnel and tonnage table is shown in figure 1.
3. Naval requirements.--

   1. Similar data will be needed showing the personnel and cargo requirements for naval personnel and matériel specially provided for the operation, including subsistence stores for troops while aboard ship.

   2. The stowage of boats for the landing force and their allocation to vessels presents a problem of vital importance. A list of boats, showing types, dimensions, weights, etc., should be included in the data furnished.
919. Allotment of transport.--

     1. The troop and cargo requirements as shown in the force personnel and tonnage table, plus the requirements for naval personnel and matériel, is the basis for the allotment of transports.

     2. In the determination of the troop and cargo capacity of a transport, consideration should be given to the necessity of avoiding undue crowding, particularly on long voyages and under adverse weather conditions. Troops must be in good physical condition when the landing takes place. Proper ventilation of troop spaces is necessary. Space is required for drills, instruction, and exercise enroute; for troops and staff officers; for care and cleaning of weapons and other combat equipment; as well as clear deck space for gun crews in defense of the ship.

     3. After determining the total troop and cargo capacity of each ship in accordance with the above considerations an additional safety factor of 10 percent should be added to the troop and cargo requirements in order to permit latitude in the assignment of troops and matériel and to assure the maintenance of the integrity of organizations.

     4. The landing force will require, as soon as it can be procured, complete information concerning each of the transports allocated, including the rated troop and cargo capacity, blueprints of the vessel and each hold, plans for conversion, speed, draft, capacity of booms, and other characteristics affecting embarkation. An example of the data required is shown in figure 2.

     5. The following special ships may be required:

        Special boat carriers to supplement the boat capacities of other ships in transporting the requisite number of landing boats and lighters.

        Hospital ships, with capacity based upon casualty estimates.

        Ships for distilling water, as necessary.

        Ammunition ships for high-explosive ammunition of the landing force which is beyond the capacity of the various transports, and additional ammunition for ships' guns required in support of the landing.

        Tankers or cargo ships for transporting gasoline. The requirements for gasoline, particularly by aviation, are usually beyond the deck capacity of the transports.

920. Embarkation groups and transport divisions.--

     1. Effective control of all the details of the embarkation, movement overseas, and debarkation, particularly when the landing beaches are separated by considerable distances, requires that the transport group be subdivided into appropriate task organizations, designated as transport divisions.

     2. A parallel subdivision of the landing force into task organizations is also required. The task organization of the landing force, consisting of the troops and matériel embarked upon the vessels of a transport division, is termed an embarkation group.

     3. The organization of the embarkation groups and the transport divisions upon which they will be embarked are interdependent and governed largely by the following considerations:

        1. The organization of the landing force into embarkation groups is determined primarily by tactical requirements. This organization must provide for the accomplishment of the various tasks required under the preferred and alternate plans, and should permit a modification of these plans or the substitution of a new plan. Each embarkation group, insofar as practicable, should be so constituted as to permit this detachment on an independent mission involving combat on shore, and should carry supplies for at least 30 days. Troops and matériel should be so distributed among the embarkation groups that the detachment of any particular group will not deprive the remainder of the force of an unduly large percentage of any one arm, service, or type of matériel.

        2. Each embarkation group is preferably based upon an infantry brigade or regiment to which is attached a proportionate part of the supporting arms and services, such as artillery, engineers, and medical units. A part of the aircraft, tanks, and other force troops may also be included. The normal chain of command of infantry units is interrupted as little as possible. Artillery and other auxiliary troops which operate on shore under their own commanders are,

Figure 2.--Required transport data.

for embarkation, subdivided and attached to infantry organizations. Subdivision of such troops should avoid splitting the smallest unit which has the equipment to operate independently.
3. The characteristics of available transports will vary to some extent in the facilities for loading and stowing heavy matériel. This may be a determining factor in the selection of vessels upon which certain units will be embarked.

4. The allocation of units to embarkation groups should permit of economical loading. For example, the distribution of base defense artillery and aircraft among a large number of vessels results in the most economical loading of this type of matériel.

5. The transports selected to embark each group should be suitable for operating together as a transport divisions. The number of vessels in each transport division should be such as to permit effective control of the various operations involved. Divisions of three to five ships is the most suitable organization.

6. Where practicable the embarkation should provide for independent action on the part of one or more vessels comprising the transport divisions. For example, a small reinforced brigade embarked upon a transport division of four ships, may embark each regiment, reinforced, upon two ships, and thus be prepared to execute two independent operations.

7. It may be desirable to embark reserve units, reserve supplies, or a part of base defense units upon separate ships in order to permit these ships to be kept out of the landing area until they are needed. Separate transport divisions may be organized for this purpose.

8. Each embarkation group must be of the proper size to use to full advantage the troop and cargo capacity of the transport division. Lost space in one division will result in unnecessary crowding in another. It is usually possible to meet this requirement without sacrificing tactical considerations because there remains, after the preliminary assignment of troops to embarkation groups, a pool of unassigned force troops and supplies. These troops and supplies can be assigned as necessary to utilize the space available to each group. In this connection, it should be noted that a number of vessels have certain 'tween-deck compartments which may be utilized for either troops or cargo. This affords a desirable degree of flexibility in working out the detailed assignments.

9. If desirable, a part of force special troops may be organized into a separate embarkation group.

10. Hospital ships accompanying the expedition may be utilized for transporting some of the medical units of the landing force. This will result in economy in transport space and will provide greater safety for such units. Provision should be made for landing such units at the proper time.
4. The organization of embarkation groups and transport divisions should be worked out jointly between representatives of the landing force and the naval commanders concerned. Since the factors governing embarkation are to some extent conflicting, compromises will usually be necessary.

5. Each transport division is assigned a number such as "Transport Division No. 1." It should be provided with suitable command personnel and communication facilities.

6. Embarkation groups are designated by a number followed by the name of the major troop organization, as "Embarkation Group No. 1 (1st Marines, reinforced)." The appropriate troop commander in the group is responsible that troops and matériel are embarked in accordance with the approved plan. He will be embarked on the flagship of the transport division.

7. Figure 3 is a suggested form showing the detailed organization of embarkation groups and transport divisions, together with the personnel and cargo requirements of each embarkation group.
921. Assignment of troops and matériel to transports.--Troops and matériel are assigned to individual ships in accordance with the following principles:

     The embarkation must permit debarkation and operations on shore in accordance with the tactical plans.

     Integrity of tactical units, such as battalions of infantry and batteries of artillery, should be maintained.

     It is desirable that each ship carry a proportionate part of all arms and services. It should carry necessary supplies for a period of at least 30 days for all troops embarked.

     Facilities of each ship for handling and stowing heavy matériel assigned must be adequate.

     Troop and cargo capacity of each ship should be fully utilized.

Organization of Embarkation Groups and transport Divisions

	Personnel			Matériel
	Officers	Enlisted	Total	Hold cargo		Troop space cargo (cubic feet)	Deck cargo		Total cargo
				General cargo and vehicles (cubic feet)	High explosives (cubic feet)		Inflam- mables (cubic feet)	Uncrated planes, etc. (cubic feet)	Cubic feet	Long tons
Column No. 1	2	3	4	5	6	7	8	9	10	11
Embarkation Group No. 1 (1st Marines, reinforced) Colonel D. E.F. _____, U.S.M.C.
Transport Division No. 1, Captain A.B.C. _____, U.S.N.
Transports: S.S. President Smith, S.S. Lake James, S.S. Ruth Baker
1st Marines
1st Bn, 11th Marine Arty
Hq and Ser Btry, 11th Mar Arty
Co A, 1st Engr Bn
Co A, 1st Med Bn
1st Plat, MT Co, Serv Bn
1st Guard Co (less Dets)
Hq Co, 1st Mar Div
Hq Sq, 1-M, Mar Aircraft
Ob Sq, 1-M, Mar Aircraft
Airplanes (18 VO)
Force supplies
Total
Embarkation Group No. 2 (2d Marines, reinforced) Colonel J.K.L. _____, U.S.M.C.
Transport Division No. 2, Captain G.H.I. _____, U.S.N.
Transports: S.S. -----, S.S. -----, S.S. -----.
5th Marines
etc., etc.
Footnotes: The footnotes contained in force personnel and tonnage table (fig. 1 are equally applicable to this table. Force supplies are allotted to embarkation groups in accordance with cargo capacity available.

Figure 3.--Suggested form for showing organization of embarkation groups and transport divisions.

922. Embarkation tables.--When troops and matériel have been assigned to each transport the information is published in the form of an embarkation table, as an annex to the embarkation orders of the force or lower units. A sample embarkation table is shown in figure 4.

Section IV
Transport Loading

Par.
923.	Responsibility	211
924.	Methods of loading	211
925.	Commanding officer of troops	213
926.	Transport quartermaster	213
927.	Marine Corps consolidated tonnage table	213
928.	Navy Consolidated tonnage table	215
929.	Transport loading plans	215
930.	Hold stowage plans	217
931.	Loading	221

923. Responsibility.--

     1. The Marine Corps is responsible for the procurement of all matériel for the Fleet Marine Force and for the assembly of this matériel at the port of embarkation, properly placed on piers, cars, or lighters to facilitate loading in accordance with the loading plans, and for the protection of this matériel until loaded. The Marine Corps will cooperate with the Bureau of Medicine and Surgery and the Bureau of Aeronautics in the procurement and assembly of medical and aviation matériel for units of the Fleet Marine Force.

     2. The Navy is responsible for the procurement and assembly of special naval matériel to accompany the expedition, and for the provision of special equipment and labor needed in the loading. Experienced stevedores and longshoremen may be used advantageously in securing efficient stowage of cargo.

     3. Efficient organization of the activities of the port of embarkation is most essential. Matériel of every description will arrive in large quantities in a relatively short time. This matériel must be received, segregated, and stored so as to prevent congestion and to permit the delivery of the matériel to the various transports in accordance with their loading plans. An officer who is familiar with the matériel and the administrative plans should be detailed in charge as early as possible, and should be provided with adequate assistants and facilities.

     4. The loading of each transport must be in accordance with the approved tactical and logistical plans, and the matériel must be so stowed as to be available to the landing force at the time and in the sequence it will be needed. Responsibility for this stowage rests with the transport commander.

924. Methods of loading.--

     1. Commercial loading.--This method of loading utilizes ship space to maximum efficiency. It applies in movements between established and well-secured ports. Troops moved by this method are not available for tactical employment against hostile forces until after they have landed and the necessary equipment and supplies have been issued.

     2. Unit loading.--This method gives primary consideration to the readiness of troops and matériel for combat immediately upon landing, rather than economical utilization of ship space. The readiness for combat depends upon the degree to which organizations are unit loaded as follows:

        1. Combat unit loading, in which certain units selected because of their probable employment to meet tactical situations immediately upon landing, are completely loaded in a single transport with at least their essential combat equipment, transportation, and supplies available for immediate debarkation with the troops.

        2. Organizational unit loading, in which organization, with their equipment and supplies, are loaded in the same transport, but not loaded so as to allow debarkation of troops and their equipment simultaneously. As to ship space, this method is more economical that combat unit loading. It permits debarkation of complete units available for tactical employment as soon as the troops and essential matériel have been assembled on shore. Like combat unit loading, this method permits diversion, en route, by complete shiploads from the destination originally intended.

        3. Convoy unit loading, in which the troops with their equipment and supplies are loaded in transports of the same convoy, but not necessarily in the same vessel. This method may be used to fill in space in transports carrying combat unit loaded organization. Troops which are convoy unit loaded are available for tactical employment only when landed at established beach heads, and after the lapse of time necessary to assemble them on land with their equipment and supplies.

Embarkation Table

	Personnel			Matériel
	Officers	Enlisted	Total	Hold cargo		Troop space cargo (cubic feet)	Deck cargo		Total cargo
				General cargo and vehicles (cubic feet)	High explosives (cubic feet)		Inflam- mables (cubic feet)	Uncrated planes, etc. (cubic feet)	Cubic feet	Long tons
Column No. 1	2	3	4	5	6	7	8	9	10	11
S.S. President Smith, Capt. M.N.P. _____, U.S.N., Lt. Col. R.S.T. _____, U.S.M.C., commander of troops.
Hq Co, 1st Marines
1st Bn, 1st Marines
1st Bn, 11th Marines (less Btrys B and C)
Hq Co, 1st Mar Div
1st Plat, Co A, 1st Engr Bn
Det, 1st Med BN
Det, 1st MT Co
1st Div, Obs Sq 1-M, Marine Aircraft
Airplanes (6 VO)
QM, 1st Marines (matériel)
Post exchange supplies
Force supplies
Total S.S. President Smith
S.S. Lake Clare, Capt. U.V.W. _____, U.S.N. Lt. Col. X.Y.Z. _____, U.S.M.C., commander of troops
Etc., etc.
Footnotes: The footnotes to force personnel and tonnage table (fig. 1) are applicable to this table. In addition to the decisions noted therein, the following decisions are necessary: First, groups of equipment and amount of supplies to be issued to organizations prior to embarkation; second, equipment and supplies to be carried by regimental and force headquarters. For example, the regimental quartermaster might be directed to carry certain groups of equipment, 30 day's rations, and other supplies for all units embarked. Force supplies to be carried by the embarkation group should be the same as shown in fig. 3. In the table (fig. 3), all classes of equipment and supplies for each organization were included in the cargo figures for the organization. In this table (fig. 4), the items carried by the regimental quartermaster and post exchange officer are listed separately and cargo figures for organizations reduced accordingly. Tonnage figures under "Total cargo, long tons" (column 11) represent the actual weight of matériel only. The weight of an officer or man with his individual equipment is assumed to average 1/10 of a long ton. This weight should be added to the total cargo tonnage when it is desired to determine that the weight carrying capacity of a ship is not exceeded.

Figure 4.--Suggested form for embarkation table.

3. Necessity for combat unit loading.--The nature of operations contemplated by this publication are such that it is essential that most of the organizations of the Fleet Marine Force be combat unit loaded. This does not necessarily mean uneconomical loading. If the loading is carefully planned, it will be found in actual practice that, for Marine Corps matériel, combat until loading will be practically as economical as organizational or convoy unit loading. This is possible because--

   1. The distribution of organization combat equipment, such as field guns, tractors, trailers, etc., among the various ships permits the loading of such matériel in 'tween-deck spaces and compartments which are particularly suitable for this type of equipment, thus enabling cargo space to be used to full advantage.

   2. Supplies in excess of the immediate needs of the troops may be distributed in the holds of the whole transport group to take full advantage of cargo space.
925. Commanding officer of troops.--

     1. The senior commander of the organizations embarked on each transport becomes the "commanding officer of troops." This officer will make the necessary arrangements with the transport commander relative to the embarkation, including assignment of troop space, space for organization officers, messing, and other administrative details.

     2. The commanding officer of troops will make the necessary arrangements with the transport commander relative to the loading and stowage of matériel. The details of this work may be delegated to the transport quartermaster.

926. Transport quartermaster.--

     1. An officer will be detailed as transport quartermaster for each transport carrying organizations or matériel of the landing force. The transport quartermaster should be detailed as soon as possible after the allocation of vessels has been decided. he should be given opportunity for frequent conferences with the ship's officers, and to familiarize himself with the arrangement and facilities of the transport.

     2. The duties of the transport quartermaster are--

        To act as liaison officer between the transport commander and appropriate troop commanders.

        To furnish the ship with all necessary information relative to troops and matériel, including a consolidate tonnage table (fig. 5).

        To assist in the preparation and execution of the loading and stowage plans.

        To arrange for the delivery of matériel to the ship in the order required by the loading and stowage plans.

        To keep complete records of matériel loaded and its disposition.

        To assist in the preparation and execution of the debarkation plan for the personnel of rear echelons and services, and equipment and supplies not landed with combat troops.

     3. Unless permanently assigned to the ship, the transport quartermaster is under the immediate command of the commanding officer of troops. Prior to embarkation, however, and after troops are debarked at destination, the transport quartermaster may work under the direct supervision of force headquarters, in which case he will have the status of an additional staff officer of the force. The relief of the transport quartermaster from other duties will usually be necessary, particularly when the transport is not in the immediate vicinity of the mobilization point. He may be detailed from one of the organizations to be embarked on the transport, or an additional officer may be appointed. The latter is preferable in large operations.

     4. Assistants to the transport quartermaster will be detailed as necessary. These should include an assistant transport quartermaster and at least one noncommissioned officer for each hatch and, if available, an additional noncommissioned officer for each hold.

     5. The transport quartermaster should not be made an accountable officer for matériel loaded in the transport. Accountability for such matériel should remain with appropriate organization quartermasters.

927. Marine Corps consolidated tonnage table.--

     1. A consolidated tonnage table will be prepared giving detailed information relative to the organizations and matériel of the landing force to be embarked aboard each transport. A sample consolidated tonnage table is shown in figure 5.

     2. Classification of cargo.--In order to facilitate the preparation of loading plans, cargo is divided into seven classes, according to the nature of stowage required, as follows:

        1. Vehicles.--These include all wheeled vehicles, such as Cole carts, tractors, trucks,

guns mounted on wheels, etc. Vehicles require a definite amount of deck space regardless of the cubic capacity of the hold.
2. General cargo.--This includes boxes, bales, crates, barrels, and bundles generally known in commercial shipping as package freight. This type of cargo is susceptible of loading in any available hold according to the priority desired.

3. Perishables.--This consists of fresh meat, fruit, vegetables, and other perishable components of the ration.

4. High explosives.--This includes artillery ammunition, grenades, airplane bombs, demolition explosives, some groups of chemical ammunition, etc., requiring stowage in a magazine or other suitable compartment.

5. Troop space cargo.--This includes baggage of individuals and office equipment of organizations. No hold space is usually required for this equipment as it should be stowed in troop sleeping compartments and offices.

6. Inflammables.--This includes gasoline, oil, kerosene, some groups of chemical ammunition, and pyrotechnics. On transports, this class of cargo is normally stowed on weather decks.

7. Airplanes.--This includes airplanes, crated and uncrated, requiring special consideration in loading and stowage.
3. Tonnage data.--The necessary data for the compilation of the consolidated tonnage table, and instructions for the preparation thereof, are contained in Marine Corps Tonnage Tables.

4. Broken stowage.--

   1. Broken stowage is lost space between items of cargo, around stanchions, against bulkheads, and between the cargo and deck above.

   2. The figures given in all Marine Corps Tonnage Tables include allowances for broken stowage as show below:

      1. For vehicles and uncrated planes 50 percent has been added to the actual volume and 25 percent to the actual area of deck space necessary for the articles.

      2. For all other cargo 20 percent has been added to the actual volume of the articles.

   3. These percentages are based upon the best available data from naval and commercial sources. If suitable spaces are utilized for the various classes of cargo and the stowage is carefully planned and executed, the cargo should stow in the space assigned in the tables. It should be noted, however, that for vehicles and planes particularly, the percentage of broken stowage will vary between wide limits, depending upon the shape and dimensions of the available cargo space and the character of the matériels to be loaded therein. In practice, therefore, the figures given in the consolidated tonnage tables should be used for making preliminary estimates of shipping requirements and a tentative allotment of matériels to stowage spaces. The figures should be checked by detailed stowage plans as shown in paragraph 930, below.
928. Navy consolidated tonnage table.--A consolidated tonnage table should be prepared for each ship, showing all special Navy matériel to be loaded. It is desirable that this table be prepared in the same form and with the same classification of cargo as is used in the Marine Corps consolidated tonnage table, with a probable addition of a column for "Perishables."

929. Transport loading plans.--

     1. Based on the consolidated tonnage tables a loading plan is prepared for each transport showing what matériel will be loaded in each hold, 'tween-deck compartment, magazine, and other space on the transport available for cargo, including cargo to be carried as a deck load. Loading plans are prepared under the direction of the transport commander. The transport quartermaster, or other responsible officer of the landing force, will assist in the preparation of these plans, or prepare tentative plans for approval of the transport commander. Figure 6 shows a convenient form for preparing loading plans.

     2. Tactical and administrative factors.--

        1. All equipment and supplies should be allocated to cargo spaces so as to permit debarkation in the order required.

        2. When practicable, the matériel belonging to each organization should be kept together and loaded in a part of the ship convenient to the organization.

        3. In order that lowering of fighting tanks may not delay debarkation, it is desirable that they be stowed in positions where they will be readily available.

        4. Force supplies are allocated to holds to utilize the cargo space to best advantage.

     3. Classes of cargo.--The various classes of cargo must be assigned space suitable to the nature of the cargo.

     4. Distribution of weight.--Loading and stowage plans must provide for proper distribution of weight longitudinally, laterally, and vertically. Ballast tanks may be utilized to compensate for unequal distribution of weight.

5. Stowage factors.--

   1. Proper distribution of weight is based on the stowage factor; that is, the number of cubic feet per ton for the various types of matériel to be loaded. The stowage factor for any article or group of articles can be obtained from the Marine Corps Tonnage Tables by dividing the volume in cubic feet by the weight in tons.

   2. A partial table of the stowage factors of Marine Corps matériel, including allowances for broken stowage, is as follows:

      	Cubic feet per ton
      75-mm guns	326
      75-mm pack howitzers	291
      155-mm gun	195
      Tractors, No. 25	145
      Trailers, 3-ton, empty	408
      Trailers, 3-ton, loaded	142
      Trucks, 2-ton, empty	462
      Trucks, 2-ton, loaded	299
      Camp equipment	159
      Small-arms ammunition	36
      Artillery ammunition	43
      Rations	68

   3. It will be seen from the above table that, contrary to the usual belief, guns, tractors, and trailers have comparatively large stowage factors and consequently can be loaded at high levels on the ship; that is, in 'tween-deck compartments or on deck. This is not only economical in space but it is desirable from a tactical standpoint, as much of this matériel will be needed early in the operation.

   4. Ammunition and rations have relatively low stowage factors requiring that the bulk of these supplies be stowed at low levels. Some of these supplies, however, must be available to accompany troops ashore, and provision should be made for stowing a certain amount of ammunition and rations 'tween decks, or in other readily accessible space.

6. Sequence.--In the preparation of the loading plan it will be found convenient to allocate cargo to cargo space in the following sequence:

   1. High explosives, inflammables, and perishables, for which special stowage space must be provided.

   2. Troop space cargo, if not loaded in troop compartments.

   3. Airplanes.

   4. Heavy, bulky items, such as 6-inch guns, machine ship trucks, etc.

   5. Other vehicles; square feet of available deck space must not be exceeded.

   6. Remaining organization equipment and supplies.

   7. Quartermaster matériel; the bulk of this is general cargo, and space is assigned according to desired priority.

7. Verification of loading plan.--As a final verification, the loading plan and the consolidated tonnage tables should be compared to see that each group of articles is accounted for and that the totals of tonnage and volume agree.
930. Hold stowage plans.--

     1. Plans.--After the loading plan for the transport has been completed, a stowage plan is prepared for each hold, magazine, and 'tween-deck compartment used for cargo. The necessary data is taken from the consolidated tonnage tables supplemented by detailed information contained in the tonnage tables for the organizations to be embarked. These plans will indicate in detail how the items of cargo will be stowed in the space available, and should include--

        A drawing showing the hold and arrangement of cargo therein (fig. 8-a).

        A table showing the items, order in which loaded, and such other information as is necessary (fig. 8-b).

     2. Stowage.--

        1. Matériel may be stowed as follows:

           Highest priority under the hatches and immediately accessible thereto, power priority outward therefrom;

           By layers with highest priority on top;

           In groups separated by vertical planes radiating from the hatch; or

           Combinations of the above.

        2. It is desirable to begin stowage in the wings and complete near the hatches, and the order of loading as shown in the stowage table should so provide.

3. Vehicles.--

   1. "Logistic Data, U.S. Marine Corps" contains complete data relative to dimensions and weight of Marine Corps vehicles, guns on wheels, and uncrated planes. It contains a photograph of each vehicle or article, and a diagram showing the deck space required in stowage. Where vehicles can be nested, the diagram shows space required for nested vehicles.

 

 

DELETED

Figure 8-a.--Stowage plan diagram.

2. In preparing a stowage plan for stowing vehicles or planes a diagram of the hold or deck is drawn to scale, showing hatch opening, stanchions, and obstructions. The vehicle patterns can be cut out from tracings of the diagrams given in the pamphlet. These patterns, representing the vehicles to be stowed, can be moved about to secure the most economical stowage consistent with safety and other considerations.

3. To prevent shifting at sea with the roll of the ship, vehicles are loaded with the axles athwart ship, and are properly wheel chocked or secured to stanchions or ringbolts.

Stowage Plan Legend, Compt. No. 1 3d Deck

No.	Matériel	Organization	Remarks
1	Cross-country car	Hq CO, 1st Marines	Footnote B.
2	do	Hq Co, 1st Bn, 1st Marines	Do.
3	Tractor	do	Do.
4	do	Co D, 1st Bn, 1st Marines	Do.
5	do	do	Do.
6	do	Co C, 1st Bn, 1st Marines	Do.
7	do	Co B, 21st Bn, 1st Marines	Do.
8	do	Co A, 1st Bn, 1st Marines	Do.
9	Trailer	Co D, 1st Bn, 1st Marines	Do.
10	do	do	Do.
11	do	Hq Co, 1st Bn, 1st Marines	Do.
12	do	do	Do.
13	do	Co B, 1st Bn, 1st Marines	Do.
14	do	Co D, 1st Bn, 1st Marines	Do.
15	do	do	Do.
16	do	Co A, 1st Bn, 1st Marines	Do.
17	Two (2) bicycles	Hq CO, 1st Bn, 1st Marines	Do.
18	Supplementary equipment	1st Bn, 1st Marines	Footnote C.
19	SA ammunition	do	Do.
20	Rations	QM, 1st Marines	Do.
21	do	1st Bn, 1st Marines	Do.
22	Trailer	Co A, 1st Bn, 1st Marines	Footnote B.
23	do	Co C, 1st Bn, 1st Marines	Do.
24	do	Co B, 1st Bn, 1st Marines	Do.
25	do	Co D, 1st Bn, 1st Marines	Do.
26	29 Cole carts and 1 reel	1st Bn, 1st Marines	Do.
27	AT gun	do	Do.
28	Motorcycle with side car	do	Do.
Footnotes: (A) Number indicates the order in which loaded, and provides for unloading generally in reverse order. This number is shown in circle on stowage plan diagram, fig. 8-a. (B) Chocked and secured in place. (C) Dunnaged and fenced in place.

Figure 8-b.--Suggested stowage plan legend.

4. It is usually impracticable to stow vehicles over or under other matériel without shoring up. Stowage in 'tween-deck compartments is most economical. Where vehicles must be stowed in holds, much space will be lost unless new decks are constructed to permit stowage in several layers. Such construction is relatively simple in holds having shaft alleys.

5. Care should be exercised to see that vehicles can actually be lowered or moved into the assigned space, due consideration being given to the location of the hold opening, turning radius of the vehicle, and stanchions, hatch combings, and other obstructions.
4. General cargo.--Stowage plans for holds in which general cargo will be stowed need not be so detailed.

5. Sample stowage plan.--Figures 8-a and 8-b show a sample stowage plan of a 'tween-deck compartment in which both vehicles and general cargo are stowed.
931. Loading.--

     1. Delivery of matériel.--The stowage plans show the order in which matériel will be loaded in each hold. These plans, together with the order of loading the various holds, determine the priority, the place, and the approximate time matériel should be delivered alongside.

     2. Laying out holds.--Prior to receipt of the matériel, holds in which vehicles or planes are to be stowed should be laid out with chalk, showing the exact space to be occupied by each vehicle or plane. A similar deck marking may be desirable to indicate space assigned to other classes of cargo. The spaces should be numbered serially in the order in which the matériel is to be loaded, as indicated by the stowage plans for the hold. This will not only provide for orderly and speedy loading when the matériel arrives, but is desirable as a check on the stowage plans.

     3. Identifying matériel.--Organization equipment will bear an identifying insignia indicating the company, battery, or squadron to which each article belongs. As a further means of identification, each vehicle should be marked in chalk with the number of the space it is to occupy, and the hold nu