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

NWP 4-01.4CHAPTER 9Personnel, Light Fleet Freight, and MailTransfer by Synthetic Highline —Rigging and Operation9.1 BASIC CONSIDERATIONSShips can exchange personnel, light fleet freight, andmail during a scheduled replenishment or as an independentoperation on short notice at any time. An exchangeduring a scheduled replenishment requirescareful planning to avoid interference (as much as possible)with work at other transfer stations and to preventdelay in completing the primary replenishment.When two combatants are required to conduct an exchangeof personnel, light fleet freight, or mail, theOTC shall designate the control and approach ships.The OTC shall also designate the delivery ship.The rig for transfer of personnel in a transfer chair orStokes litter is the synthetic highline. The equipment andprocedures are described in paragraphs 9.2 through 9.6.WARNINGThe maximum safe load for transfer bysynthetic highline is 600 lb (272 kg).For transfer of personnel by STREAM rig, see Chapter8. For transfer of personnel by helicopter, see paragraph9.7 and NWP 3-04.1M (formerly NWP 42). Fortransfer of light fleet freight and mail, see paragraph 9.8.9.2 TRANSFER OF PERSONNEL BYSYNTHETIC HIGHLINEThe synthetic highline, rigged for personnel transfer,is illustrated in Figure 9-1. See Figures 9-4 and 9-5 atthe end of this chapter for equipment required at transferstations.9.2.1 Highline. The highline for personnel transferis 4-inch (101.6 mm), double-braided, polyester line(MIL-R-24536), at least 350 feet (106.6 m) in length. Asynthetic line thimble (NEWCO type) of appropriatesize will be spliced into the delivery end of the highlinewith a 1-inch (25.4 mm) safety anchor shackle. Theshackle is used to secure the highline to the receivingship’s attachment point.WARNINGOnly double-braided polyester line (MIL-R-24536) and the STREAM rig for transfer ofpersonnel (see Chapter 8) may be used fortransfer of personnel by highline.9.2.2 Inhaul. The inhaul is a 3-inch (76.2 mm),plaited, polyester line (MIL-R-24537), at least 350 feet(106.6 m) in length. A 7/8-inch (22.2 mm) or 3/4-inch(19.0 mm) safety anchor shackle is dipped through aneye splice on the outboard end for attachment to thetrolley block (see Figure 9-2).9.2.3 Outhaul/Messenger. For ships that do nothave a STAR messenger, the outhaul is made up as describedin paragraph 2.3.5 without the 6-foot (1.8 m)2-1/4-inch (57.2 mm) line, the pair of brummel hooks,and the 60-foot (19.2 m) 2-1/4-inch (57.2 mm) line.Make a 5-inch (12.7 cm) soft-eye splice in the 3-inch(76.2 mm) line for attachment to the trolley block (seeFigure 9-2). Ships that have the STAR messenger willuse the STAR messenger and will disconnect at thebrummel hooks and not use the 60-foot (19.2 m) section.9.2.4 Transfer Chair and Litter ProtectiveFrame. Figure 9-2 shows the method of securing thetransfer chair and litter protective frame to the trolley9-1 ORIGINAL