Field Manual Army FM 4-20.116 (FM 10-516) AirForce TO 13C17-1-13 Airdrop of Supplies and Equipment: Reference Data for Airdrop Platform Loads August 2001 This manual provides a ready-reference planning guide for loads rigged for airdrop. It illustrates the rigged load and contains dimensional data, weight, and center of balance (CB) for each load. Information is also provided on aircraft, extraction parachutes and reference tables of miscellaneous information on materials used to fabricate and maintain air items and to rig airdrop equipment.