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

NWP 4-01.4CHAPTER 5Liquid Cargo Transfer — Astern FuelingMethod and Operations With Tankers5.1 SCOPEWhile replenishment ships do not normally conductastern fueling, selected oilers and merchant tankersmay have this capability. The astern hose can be deliveredusing a 6-inch (152.4 mm) hose reel rig or a 2-1/2-inch (63.5 mm) lay-on-deck hose rig. Some merchanttankers still use a 6-inch (152.4 mm) lay-on-deck hoserig. Each delivery system uses the float method of passingthe rig to the receiving ship.This chapter details the methods for transferring fuelbetween ships of the U.S. Navy using the asternmethod. It also covers the procedures employed whenmerchant tankers are used for underway replenishmentof Navy ships. ATP 16 covers procedures employedwhen conducting FAS operations with ships of NATOnations.5.2 DELIVERY SHIP CHARACTERISTICSRefer to paragraph 3.2.5.3 STANDARD HOSE RIGSRefer to paragraph 3.4.5.4 STATIC-TESTED LOADSRefer to paragraph 3.5.5.5 FUELING PREPARATIONSRefer to paragraph 3.6.5.6 BASIC ASTERN FUEL RIG EQUIPMENTParagraphs 5.6.1 through 5.6.6 describe major equipmentused in astern fueling operations.5.6.1 Wire Rope. Refer to paragraph 3.7.1.5.6.2 Fiber Rope. Refer to paragraph 3.7.2.5.6.3 Hose and Fittings. The hose and fittings usedin FAS rigs are in accordance with the paragraphs below.5.6.3.1 Fuel Transfer Hose (MILSPEC MIL-H-22240). Fuel transfer hose is lightweight and nonrigid(collapsible). There are two different types.1. 6-inch (152.4 mm) astern fuel delivery hose isused in either the lay-on-deck rig or astern reelrig. Standard issue length for lay-on-deck rigs is50 feet (15.2 m); it is 750 feet (228.6 m) forastern reels.2. 2-1/2-inch (63.5 mm) astern fuel delivery hose isused in the 2-1/2-inch (63.5 mm) lay-on-deckastern rig. Standard issue length is 50 feet (15.2m). Virgin, 2-1/2-inch (63.5 mm), astern fuel deliveryhose, from stock, can be used for eitherF76, F44, or water transfer. After the first transferof a product, the hose takes on the product’sidentity. The hose can only be used for that productfor all following transfers. Ship’s force muststencil on each hose at each end the product thatcan be transferred with the hose.CAUTIONOnce a hose has been used for a product(fuel or water), do not use it for any otherproduct. Using a hose for a different productthan that for which it was first used maycontaminate fuel or water tanks.5.6.3.2 Hose Couplings (MILSPEC MIL-C-24356). Refer to paragraph 3.7.3.3.5.6.3.3 Riding Line Fittings (Flow-Through).Refer to paragraph 3.7.3.4.5-1 ORIGINAL