CHAPTER 10 WORKBOAT AND BOW CRANE
Section I. General
10-1 General. This workboat provides water transportation for crewmembers and visitors, small cargo items,
transporting the messenger line for shore discharge hose, and similar work-related tasks associated with operating the
water purification barge.
10-2.1 Workboat (Figures 10-1 and 10-2) is a 23-foot, reinforced aluminum-hulled, triple-V-bottomed craft with a forward
cabin for six passengers plus the operator and a flush after-deck for small cargo and messenger line reel unit. Closed cell
flotation foam fills the forward compartment, under the cabin floor, and small compartments on both sides of the engine
compartment. Workboat has two push knees on the bow, an aluminum tubular protective frame around the outboard
drive, and two bow and two stern mooring bitts. It has a diving ladder that fits into sockets on either port or starboard just
aft of cabin and forward of aft guard rail. Lifesaving equipment includes eight life vests stowed under cabin benchseats
and a ring life buoy with floating marker light and line.
10-2.2 Power is supplied by a six cylinder inline turbocharged diesel engine, inboard/outboard configuration, driving a
single propeller. Engine rpms and engagement are controlled by one lever at the operator's station. Steering is by
hydraulically operated controls at the operator's station Complete instrumentation, including a 4-inch compass and engine
hour meter, is included at the operator's station. Workboat has two automatic bilge pumps, and a 50-gallon diesel fuel
tank in the engine compartment.
10-2.3 Workboat, when not in daily use, is stowed in Its cradle on deckhouse top. It is held in place by three strap
winches on each side. These straps are hooked into three eyes on each side of boat just under the rubber bumper. The
boat is launched from storage using a three-point suspension harness attached to specially constructed points on the hull
and lifted overboard by a hydraulic bow crane and lowered into the water. The boat is lifted from the water and stored on
the cradle In the same manner.
10-2.4 Major components are the following.
Hull, aluminum, 23 ft, MonArk 2308-C
Switch, ON/OFF master, Perko 9601