MIL-D-82062B, MILITARY SPECIFICATION: DERRICK, BARGE MOUNTING, 100-LONG-TON CAPACITY (07 FEB 1983) [NO S/S DOCUMENT]

MIL-D-82062B, MILITARY SPECIFICATION: DERRICK, BARGE MOUNTING, 100-LONG-TON CAPACITY (07 FEB 1983) [NO S/S DOCUMENT]., This specification covers one type of derrick for pontoon barge mounting