MIL-STD-1660 Ammunition Unit LoadsThis standard establishes minimum design criteria and associated tests for ammunition unit loads.

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Equipment or facility

Size

Igloo magazine

Minimum doorway dimensions:

48" wide x 90" high

One horizontal dimension should be less than

47":  with forklift entry perpendicular to that dimension.

Conventional vans (typical) Interior size:

570" or 630" long x 98" wide x 110" high

(Doorway height = 110")

One horizontal dimension of the unit load should be 46" - 48½" to permit two wide loading to avoid lateral bracing.  Three wide loading requires a horizontal dimension of 303/4" - 32". Height should be 54½" for two high loading or

36" for three high loading.

MILVAN or 20' x 8' ISO containers

Interior size:

232" long x 92" wide x 87" high

(Doorway height = 84")

One horizontal dimension of the unit load should be 25" - 45½" to permit two wide loading.

Three wide loading requires a horizontal dimension of 25" - 30½"

Unit load height should not exceed 41" for two high loading or 27" for three high loads.

20' x 8' - 6" ISO containers

Interior size:

232" long x 92" wide x 93" high

(Doorway height = 90")

Horizontal dimensions should be same as for 20' x 8' ISO containers.

Unit load height should not exceed 44" for two

high loading or 291/4" for three high loads.

Side opening 20' x 8' - 6" ISO containers

Interior size:

232" long x 89" wide x 88" high

(Doorway height = 84")

Horizontal dimensions should be 25" - 44" to permit two wide loading.  Three wide loading requires a horizontal dimension of 25" - 291/4". Unit load height should not exceed 40½" for two high loading or 26½" for three high loads.

Railcars (typical) Interior size:

606" or 720" longx101" - 114" wide x 120" high

One horizontal dimension should be less than

64":  with forklift entry perpendicular to that dimension to permit entry through the railcar door.

Height should not exceed 58" for two-high loading or 39" for three-high loading.

Ships (break-bulk) (No standard size)

Unit load design shall permit easy handling by approved slings and overhead crane.

T-Class ship dimensional constraints may be found in MSC TW023-AB-WHS-010.  L-Class ship dimensional constraints may be found in NAVSEA SW023-AJ-WHS-010.

Military airlift (with 463L system)

463L Handling system pallet:

84" x 104" (full size)

84" x 50" (half size)

Optimum unit load size is 42" x 52".  For more information, see AFSC DH 1-11 for other sizes usable.

*Logair pallet (HCU-10/C) is not compatible with the C-130, C-141, and C-5 aircraft.