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The North Sounder is designed
to recover 90 percent of an oil spill
at rates up to 500 gpm. Its on-
board recovered oil capacity is
12,000 gallons. When operating in
the oil-spill recovery mode, the
vessel's bow opens to reveal an es-
calator-like ramp leading from un-
der the water surface and into the
mid-hull area of the boat.
Several design changes devel-
oped by the Clean Sound staff
have been incorporated into the
North Sounder. The most signifi-
cant is an improved method of re-
covering oily debris. This system
was designed to cope with mate-
rials such as logs, branches, kelp,
eel grass, and other floating debris.
The North Sounder was de-
signed by JBF Scientific Corpora-
tion of Wilmington, Mass. JBF has
designed more than 100 oil-skim-
ming vessels, including 50 harbor
skimmers for the U.S. Navy. Clean
Sound's new skimmer is a JBF
model DIP 5001A.
Because of her traditional hull
design, the vessel can respond to
oil spills at speeds up to 10.6
knots. During normal skimming
operations, she runs at 1 to 2
knots in conditions up to Sea State
3. The vessel can work alone or
with long containment booms at-
tached to the bow in a "V" config-
uration to funnel oil slicks to the
recovery system.
(continued on page 42)
Deck equipment includes two
McElroy towing winches and an
HBL anchor windlass. Carlisle &
Finch supplied the searchlights,
Kalhenberg the air horns, and
Hubbel the running and naviga-
tion lights.
The Nicor Clipper is classed by
the American Bureau of Shipping
and certified by the U.S. Coast
Guard.
0 « 0.
NORTH SOUNDER
Gladding Hearn
The North Sounder, said to be
the largest self-propelled oil-spill
skimmer in the U.S., was deliv-
ered in early 1983 by Gladding
Hearn Shipbuilding Corporation
of Somerset, Mass. The vessel is
owned by Clean Sound, a non-
profit joint venture of 13 oil and
oil transportation companies that
was founded in 1971 to protect the
waters of Puget Sound.
The vessel has an overall length
of 73 feet, beam of 20 feet, full-
load draft of 6 feet 3 inches, and
displacement of 130 long tons. She
is powered by twin Caterpillar
3408 DITA diesel engines, each
rated 365 bhp at 2,000 rpm, linked
to Twin Disc 3:1 reduction gears.
Built at a cost of $1.6 million, the
vessel joins a fleet of smaller skim-
mers, auxiliary boats, and barges
that Clean Sound has stationed at
ports throughout Puget Sound. The
latest addition to the fleet is sta-
tioned at Bellingham, Wash.
Main engines (2) Caterpillar
Reduction gears (2) Twin Disc
Propellers (2) Federal
Engine controls WABCO
Generators Northern Lights
Generator engines John Deere
Steering system Char-Lynn
Sanitation system Microphor
Radar Furuno
VHF radiotelephone Cybernet
Depth indicator Sandpiper
Crane Scot
Windlass Pine Hill
Oil-handling pump Moyno
Coatings Cathacote, Devran
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