UNDERWAY REPLENISHMENT NWP 4-01.4 - Historic Naval Ships ...

NWP 4-01.4STREAM rigs are capable of transferring loads up to9,000 lb (4,082 kg). Controlling the load duringtensioning and detensioning requires knowledge ofthese procedures, close coordination, and winch operatorswith skill.6.16.1 STREAM With Tensioned Outhaul andCargo Drop Reel (paragraphs 6.9 and 6.10). Weightof the load to be returned is limited by (1) the CDR’s capacity(5,700 lb (2,584 kg)) and (2) the maximum tensioncapability of the delivery station’s outhaul winch(varies from 3,000 to 5,500 lb (1,360 to 2,494 kg), dependingon winch type). Both inhaul and outhaulwinches are kept in tension control.(1) RECEIVING SHIPPosition the return load under the highline as nearthe deck edge as possible, but safe for hook-up, andstand clear of the load. Signal the delivery station tosend the trolley.(2) DELIVERY SHIP1. Lower the CDR hook sufficiently for the receivingstation to hook up the load. Raise the transferhead, and send the trolley to the receivingstation.2. Raise the transfer head to the full-up position.Hold the trolley at the receiving station with theouthaul in tension control.(3) RECEIVING SHIPClear the landing area of all personnel, except cargohandlers needed to position and hook up the load.(4) DELIVERY SHIPOperate the inhaul and outhaul winches to positionthe trolley over the load being returned.(5) RECEIVING SHIPSecure the CDR hook to the sling. Pull the brake releaselanyard to release the brake, and take up all slackin the CDR’s cable. Maintain the brake released. Signalthe delivery station to detension the highline, and informthe bridge that the highline is being detensioned.(6) DELIVERY SHIP1. Signal the receiving station that you are going todetension the highline, and inform the bridgethat you are detensioning the highline. Pay outon the highline winch until the ram is fully extendedand the highline is slack (inhaul andouthaul winches in tension control).2. When the highline is being slacked, the trolleywill tend to run outboard. Load control is maintainedby the outhaul winch in tension control.Tend hauling and highline winches for best positionof trolley over the load.(7) RECEIVING SHIPAs the CDR lowers during detensioning, continue tohold the brake released for maximum take-up of cable.When all slack is taken up, continue to hold the brakereleased and signal the delivery station to tension thehighline. It is not necessary to two-block the hook to theCDR. Adequate lift will be obtained for the load toclear the deck edge.(8) BOTH SHIPSInform the bridge that you are tensioning thehighline.(9) DELIVERY SHIPHaul in on the highline winch control and tension thehighline. Maintain trolley position and load controlwith the outhaul winch.(10) BOTH SHIPSAs the highline is tensioned, the CDR will start toraise. The receiving station immediately releases thelanyard to set the brake. The load will lift clear of thedeck. The delivery station must increase tension on theouthaul immediately after the lanyard is released tokeep the load from running outboard.(11) RECEIVING SHIPSignal the delivery station to haul in on the trolley. Ifseveral loads are being returned, the delivery station shoulduse the CDR in addition to the transfer head to lower theload to her deck, instead of lowering the transfer headfull-down. The CDR hook will be lowered sufficiently forthe receiving station to hook up the next load.6-57 ORIGINAL