MRC:
A recording of the physical,functional,and performance characteristics for an item of supply.TEXT
General Description:
Ewood timbers, v-shaped pontoon drydock frame, adjustable to hull ofvessel to be docked, consist of 1 ea blocking frame upper member mark no.Db-2, 1 ea blocking frame lower member mark no. Db-4, 1 ea frame supportadjustable mark no. Db-3, hinged at one end to hold upper and lower frameat proper angle, 3 ea bolt hex 1 in. Dia, 3-1/2 in. Lg, 1 ea bolt hex 1 in.Dia, 5 in. Lg, 4 ea nut 1 in. Thd to fit, used for p-series pontoon drydock, navfac dwg 816464 mark no. Db