MIL-STD-1660A
4.2.1 Airlift compatibility. Unit loads shall be in accordance with the general design and performance requirements of MIL-HDBK-1791 as amplified by AFSC Design Handbook DH 1-11. Air transportability criteria for nuclear weapons shall be in accordance with individual service regulations.
4.2.2 Railcar compatibility. The unit load shall, insofar as possible, be capable of being efficiently and safely loaded in standard commercial boxcars.
4.2.3 Truck trailer compatibility. Wherever practical, the unit load shall be capable of being efficiently and safely loaded into standard closed van trailers capable of meeting shipping requirements for explosives. In addition, consideration shall be given to providing appropriate strength members compatible with the fixed cross member spacing in the trailers or containers authorized for trailer on flat car (TOFC) or container on flat car (COFC) service shown in Bureau of Explosives Pamphlet No. 6C.
4.2.4 Ship compatibility. Wherever the distribution system is sufficiently known to identify the type of ships to be employed, the unit load shall be capable of being safely and efficiently loaded and stowed aboard those ships. Typical ship loading situations are described by Army TM 55-607, NAVSEA OP 3221, NAVSEA
SW023-AJ-WHS-010 (formerly OP4550), and MSC TW023-AB-WHS-010 (formerly OP3206).
4.2.5 Container compatibility. Wherever practical, the unit load shall be capable of being safely and efficiently loaded into MILVANS and commercial ISO containers.
4.3 Handling equipment compatibility. The unit load shall be compatible with the handling equipment used throughout the expected logistic flow patterns.
4.3.1 Forklift/pallet truck capability . Unit load designs shall be capable of being handled safely by forklift trucks of rated capacity appropriate to the gross weight and geometry of the unit load. Minimum size of each
forklift opening shall be in accordance with the limiting dimensions specified in STANAG-2828, minimum of 3.875 inches in height and 8.625 inches in width. Unit loads shall also be in accordance with SAE AS5389. Full 4-way
entry capability shall be provided unless a deviation is justified by life cycle cost and technical analysis. If pallet
trucks are to be used in the logistic flow pattern, the pallet design shall be compatible with their use.
4.3.2 Sling capability. Unit loads shall be capable of being safely handled by the authorized slings which are commonly used in ammunition stevedoring operations. Fleet-issue unit loads shall also be capable of being safely handled by the authorized slings which are commonly used for underway replenishment operations.
4.4 Shape. Insofar as practical, the complete unit load shall be in accordance with a shape in which all six sides are rectangles.
4.4.1 Protrusions. Protrusions from the individual items making up the unit load shall be oriented to minimize damage. Battens or other protective devices shall be used whenever protrusions are likely to cause damage or be damaged.
4.4.2 Item placement. Items (in or out of containers) making up the unit load shall be placed in such a way that space is utilized efficiently, the unit load meets all stability requirements, and the overhang requirements are met.
4.4.3 Strapping placement. Strapping shall be located in such a way that it is not susceptible to snagging by adjacent unit loads, handling equipment, or transportation equipment (i.e., additional strapping, over and above that required to equal or exceed the safe working load (see 4.8.1)) shall be used as necessary to ensure positive retention under the conditions of the tests contained herein. Strapping shall not pass under those elements of the unit load in contact with ground unless positive steps are taken to recess the strapping to prevent frictional wear. Unsupported strapping (i.e., strapping not directly bearing on the load structure or battens) shall be kept to a minimum.
4.4.4 Item orientation. Items shall be oriented in the unit load in accordance with pertinent instructions (e.g., THIS SIDE UP) or in the least fragile position. If there are no restrictions, the items shall be oriented in the attitude which will produce the most efficient unit load dimensions.
NOTE: Ammunition loaded with white phosphorous (WP) shall be loaded so that the long axis of the round is vertical unless otherwise specifically authorized.
Source: https://assist.dla.mil -- D6ownloaded: 2014-09-28T13:04Z Check the source to verify that this is the current version before use.
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