The M/V National Energy,
flagship of National Marine Serv-
ice Incorporated towboat fleet,
was christened recently at dock-
side ceremonies in New Orleans,
La.
As a mover of bulk petroleum
and chemical products, the new
towboat will primarily serve the
Gulf Intracoastal and lower Mis-
sissippi River System. The vessel
measures 140 by 42 by 11 feet,
and is powered by two 16-cylinder
General Motors EMD turbo-
charged diesel engines. Engine
performance is monitored by Na-
tional Marine's TUGMONITOR
system. It is equipped with the
company's BilgeMaster oil-water
separator and energy recovery
system.
The 5,600-horsepower towboat
was built by Dravo Corporation's
Engineering Works Division and
launched from its Neville Island
shipyard near Pittsburgh, Pa.,
(see MARITIME REPORTER/
Engineering News, December 1,
1979, issue, cover story).
According to David A. Wright,
president of National Marine Serv-
ice, the name National Energy
emphasizes the energy efficiency
of the waterway industry and the
company's role in moving the na-
tion's energy resources.
David A. Wright, president of National
Marine Service, Incorporated, wel-
comed guests and dignitaries at the
christening ceremonies for the M/V
National Energy, flagship of National
Marine Service, Inc.'s towboat fleet.
M/V National Energy
Propulsion
Two General Motors Corporation, Electro-
Motive Division Model #16-645-E7B Ma-
rine Turbo-Charged Diesel Engines, with
Air-flex clutches, Falk Model 30 MR40
Reverse-Reduction Gears, and Accessory
Rack Assembly. Each engine turning at
900 rpm delivers 2,800 continuous hp
to its propeller.
Auxiliary Equipment
Generator Sets 2 each 150-kw
generators, GM Model No. 7083
driven by 8V-71N, Model 7005
diesel engines.
Propellers Cast stainless steel,
9'0" diameter with Dravo
modified Kort nozzles.
Engine Monitoring National Marine
Service Tugmonitor and
National Marine Service
TaCHRONitor.
Searchlghts One each 19" 45 amp
carbon arc and Xenon
searchlights.
Bilge Control One each National
Marine Service BilgeMaster I
(microprocessor) installed for
use in the stack evaporation
mode.
Navigation Equipment
2 each Raytheon, Model 1625-6XR radars.
1 each Sideband Associates Model SBA312
SSB transceiver.
2 each Motorola Model 5575 VHF FM
transceiver.
1 each Raytheon Model DE 740 depth-
sounder.
1 each Motorola Model Triton portable
FM transceiver.
Vice president-Sales, Dravo Corporation,
N.B. Mortimer's^comments are applauded
by National Energy's sponsor Grayce Gau-
thier. Mrs. Gauthier is wife of C.J. Gau-
thier, chairman and president of NICOR,
holding company of National Marine.
Literature Offered On New
Harris RF Communications
Synthesized Transceiver
Literature is now available de-
scribing the RF-230M, a power-
ful synthesized transceiver from
Harris RF Communications, Roch-
ester, N.Y. The new model is de-
signed for channelized operation
on up to 96 preset channels and
up to 1,000 watts for onboard or
limited coast capabilities.
Designed with Electronically Al-
terable Read Only Memory (EAR-
OM), it is easily programmed with
no crystals to change.
The John Gregory, a new 74-
foot combination trawler, has been
delivered by Atlantic Marine, Inc.,
Ft. George Island, Fla., to owners
Manly R. and Diane Willis of Vir-
ginia Beach, Va.
The vessel, modified by the ad-
dition of a stern ramp, will be
used for bottom trawling from
Virginia up the Atlantic Coast to
New England. Designed to carry
a crew of four, the trawler has
a 20-foot 6-inch beam and a mold-
ed depth of 11 feet 6 inches.
A Caterpillar 3408 engine sup-
plies 365 hp at 1,800 rpm, with
Twin Disc reduction gear MG
514C, 6:1 ratio. The fish hold
volume is 2,400 cubic feet, and
the new vessel has a 1,800-gallon
freshwater capacity and 17,500-
gallon fuel oil capacity.
Atlantic Marine, Inc. builds
steel-hulled boats for fishing and
Modular construction, complete-
ly solid-state design, and simple
operator controls make the RF-
230M an easy to operate, compact
unit. Banded automatic servo tun-
ing in the antenna coupler directs
the 125-watt PEP output to the
antenna and constantly monitors
and adjusts to changing environ-
mental conditions. The full line
of accessories are all designed
around the building block concept.
For complete literature, write
J.D. Vatcher, Harris Corporation,
RF Communications Division,
1680 University Avenue, Roches-
ter, N.Y. 14610.
offshore supply purposes, featur-
ing inverted-hull assembly for
stronger seam welds. The ship-
yard is located on the St. John
River entrance to the Port of
Jacksonville, two miles from the
Atlantic Ocean.
The John Gregory
Main Engine Caterpillar 3408
Reduction Gear Twin Disc
MG 514C, 6:1 ratio
Propeller 66" Columbian Bronze
4-Blade
Tailshaft Aquamet 18 4V2" stainless
Auxiliary Engine Lister ST-2
Deck Equipment McElroy 504
mechanical winch
VHF Modar Triton 55/25
Fathometer Sitex
Autopilot Wood Freeman Model 15B
Loran Micrologic
Model ML-320 w/ ML-85 plotter
Pumps (2) l'/4" ITT Jabsco
M/V National Energy Christened
In New Orleans
Powered by two GM Electro-Motive turbocharged diesel engines, the M/V National
Energy joins the National Marine Service fleet. Built by Dravo's Neville Island, Pa.,
yard, the vessel has an overall length of 140 feet, molded width of 42 feet, and
a molded depth of 11 feet.
The John Gregory was delivered recently by Atlantic Marine, Inc. to owners Manly R.
and Diane Willis. The 74-foot combination trawler will be bottom trawling along the
Atlantic Coast from Virginia to New England.
Atlantic Marine Delivers
74' Combination Trawler John Gregory
56 ZIDELL Maritime Reporter/Engineering News
Digital Wave Publishing