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

NWP 4-01.45. Seeing that all attachment points and major rigfittings are painted white (to aid visibility undernight lighting conditions)6. Using soft, unpainted, canvas tags (5 inch (12.7 cm)by 6 inch (15.2 cm)) on all lines passed betweenships, with short identification titles as follows:a. Messengerb. Attach zero end B/B phone/distance linec. Bri/Bri phone/distance lined. Sta/Sta phonee. Messenger returnf. Highline messengerg. Burton messenger.NoteThe canvas tags shall be marked as indicatedand sewn by hand to messenger lines toallow for reeving through fairlead blocks.7. Testing switches for darkened-ship condition8. Testing Nancy gear.2.5.2 Night Lighting. Darkened-ship condition (nowhite lights showing) is the normal lighting conditionfor night replenishment. Ships should be darkened priorto commencing the approach.Under darkened-ship condition, certain lighting isneeded for coming alongside, maintaining station, andhandling the gear and stores in the hold and on deck.Typical ship’s lighting for night replenishment is illustratedin Figures 2-17 and 2-18 and described below.If possible, avoid the blinding effect of bright whitelights. Navigation lights may be dimmed by both shipsfrom the time the approach ship starts its approach untilit is well clear. Dimmed navigation lights do not complywith the Rules of the Road.2.5.3 Approach and Station-Keeping Lights.Typical approach and station-keeping lights are shownin Figure 2-17.2.5.3.1 Hull Contour Lights. The control shipshows two blue 25-watt lights during the approach andwhile the receiving ship is alongside (see Figure 2-19).These lights are:1. Located at the fore and aft extremes of that portionof the side parallel with the keel2. Horizontally shaded to provide a 135° arc of visibilityfrom directly astern to 45° forward of thebeam3. Vertically shaded to be visible outboard from40° above to 40° below the horizontal.A third contour light shall be shown on control shipsover 600 feet (182.8 m) in length. This light will be locatedapproximately midway between the other twolights.TRUCK LIGHT (DIMMED)SHOWN ONLY DURINGAPPROACH OF RECEIVINGSHIPTASK LIGHTS(SHOWN ONLY WHENREQUIRED BY RULESOF THE ROAD)WAKE LIGHTSHOWN ONLY DURINGAPPROACH OF RECEIVINGSHIPCONTOURLIGHTSFigure 2-17. Approach and Station-Keeping Lights2-30 ORIGINAL