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

NWP 4-01.4CAUTIONTo preclude fouling of the screws, shipsshall ensure that all wires are clear of thewater before altering course.5. The approach ship hauls down PREP, when alllines are clear.Radical changes in speed and course must be avoided.Propeller wash from the approach ship’s departure canadversely affect the control ship’s steering, and maycause a dangerous situation to develop, if another ship isalongside the control ship on her other side.When a large ship departs station, the conning officerof the control ship should be prepared for an increasein speed of his/her own ship, as it is freed fromthe dragging influence of the approach ship.2.2.11 Emergency Breakaway. During underwayreplenishment, an emergency may arise that requires anemergency breakaway. An emergency breakaway isbasically an accelerated standard breakaway using anorderly and pre-arranged procedure. The objective is todisengage quickly without damaging the rigs or endangeringpersonnel.2.2.11.1 Training. The basis for proper preparationis the assignment of specific duties to personnel at eachUNREP station. Emergency breakaway duty assignmentsand procedures should be outlined in a separatesection of the ship’s UNREP bill. Personnel involved inreplenishment must be thoroughly briefed on the entireevolution prior to each UNREP. Periodic “walk-through”drills should be conducted to ensure a satisfactory level ofunderstanding. These basic points must be covered:1. Emergency breakaway procedures containedherein.2. Review of ship’s UNREP bill, emergency breakawayprocedures, and specific responsibilities associatedwith personnel duty assignments. Theresponsibilities of the conning officer, helmsman,ship control safety officer, after steering safetyofficer, and rig captain should be included in theship’s UNREP bill and rehearsed prior to eachevolution.3. All associated internal and external communications,including visual signals.4. The use of velocity, pole-type, wire rope cutters(see paragraph 2.2.11.3). Personnel assigned touse these cutters shall be trained and certified inaccordance with OPNAVINST 8023.2.5. The use of equipment to reduce the extent of damage,retrieve the rigs, and effect prompt repairs.Special equipment (such as Klein grips, wire clips,and chain stoppers) should be included.6. The organization for making repairs.7. The location of spare gear that may be requiredto return an inoperable station to full operationas soon as possible.8. Winch watchers may be stationed at winches usedduring replenishment. Each winch watcher shallremain alert to detect malfunctions in the winchassigned him/her and report immediately any malfunctionby blowing on a whistle loudly until acknowledgedby the rig captain. Appendix Iprovides winch malfunctions. Winch watchersshould be observant for any of these malfunctions.WARNINGDo not stand in the direct line of a winchwire under tension.2.2.11.2 Securing Wires to Winch Drums. Onships using wire rope rigs for underway replenishment,each wire rope end shall be secured to the winch drumby only one wire rope clip or specially designed clampthat will allow the bitter end of the wire to slip free ofthe drum during an emergency breakaway.NoteSeizing wire shall be removed from thebitter end of a wire rope, prior to securingthe wire rope to a winch drum using a wirerope clip, to prevent the fouling of the wirerope in an emergency breakaway.2.2.11.3 Velocity, Pole-Type, Wire Rope Cutters.The explosive-charged, velocity, pole-type, wirerope cutters are used to cut nontensioned wires and linesduring an emergency breakaway if there is danger toship’s personnel or the ship’s structure. These cuttersshall not be used for any other purpose. (See Figure 2-5.)2-11 ORIGINAL