TM 55-1930-209-14&P-17
CHAPTER 2 WORKBOAT
Section I. Description and data
2-1 Purpose . 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.
2-2 Description and components
2-2.1 Workboat (see Figures 2-1 and 2-2) 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 has been used to fill 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 bits. Workboat has a diving ladder that fits into sockets on either port
or starboard just aft of cabin and forward of aft guardrail. Lifesaving equipment includes eight lifevests stowed under
cabin benchseats and a ring lifebuoy with floating marker light and line.
2-2.2 Power is supplied by a six cylinder inline turbocharged diesel engine, inboard/outboard configuration, driving a
single propeller. Engine revolutions per minute (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.
2-2.3 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 the 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.
2-2.4 Major components are the following:
a.
Hull, aluminum, 23 ft, Monark 2308-C
b.
Switch, ON/OFF master, Perko 9601
c.
Radio, VHF/FM commercial marine band
d.
Depthfinder, digital, Aqua Probe model 550
e.
Switch, panel, Perko 517
f.
Switch, 3-position, Perko 366
g.
Panel, fuse, Perko 647-6
h.
Bar, ground, Perko 627-6
i.
Panel, engine, Volvo Penta
j.
Meter, engine hour
k.
Compass, 4-in., HB 70 Ritchie
I.
Gauge, fuel, Tempo w/fuel sender
m.
Helm, Teleflex Seastar HH5201
n.
Controls, More D67978
o.
Cables, control, Morse
p.
Pump, trim, Volvo Penta
2-1
