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Image of vessel Bonnie Marietta at sunset with Christmas lights and Morro Rock in background

F/V Bonnie Marietta Specifications

The Bonnie Marietta is a 38-foot fully equipped fishing and research support vessel, and can be outfitted or altered to meet specific job requirements. She is a single-screw, diesel powered vessel, with molded fiberglass construction, and a fully enclosed wheelhouse. It has an open fly bridge with dual engine control (third throttle control located at stern), a fully enclosed galley, head, engine room, and storage with four berths in the foc’sle.

HULL: Built by Channel Island Boat Works

DESIGNER: Herb David 

LENGTH: 38’0”

BEAM: 13’6” 

DEPTH: 4’6” 



HOLD CAPACITY: 500 cubic feet, convertible to work space


Other Details


Molded fiberglass hull, deck, and house; skin 1” to more than 2”; molded stringers and stiffeners; four watertight bulkheads, including a collision bulkhead




Main engine: Cummins 6BT5.9M turbo charged, 210 H.P.; 2.5-1 Twin Disc 506-1 reverse gear, keel cooled with a Fernstrum B857B, dry exhaust; natural air flow with ducts to engine room; copper and neoprene flex fuel lines to engine; complete set engine alarms; gauges for oil, water, transmission, volts, and pyrometer. Dual Lubrafiner fuel filter system with dual electric fuel pumps. Jabsco oil changing system, and 30 gallon hydraulic oil tank with Vickers hydraulic electric pump.




Two banks of two each, 8D marine heavy duty wet batteries with parallel series vapor proof switch; plastic covered marine grade wiring, all circuits equipped with individual circuit breakers, panel located in the pilot house; 110 amp marine alternator; 1000 watt Tripp-Lite inverter; Dual marine battery chargers; 10.5 KW Newage generator powered by 4 cylinder Kubota diesel, supplying 110 and 220 single phase AC power with shore power disconnect, keel cooled with Fernstrum B439B-E, dry exhaust; complete set engine alarms and shutdown; gauges for oil, water, volts; one series 24 marine battery with separate parallel series vapor proof switch, single battery charger and electrical fuel pump; 3000 watts of 110 volt LED deck lights; 200 watts of 12 volt halogen deck lights; 1000 watt high pressure sodium night vision forward facing flood.




Fuel: Two each, 3/16 steel, vented to atmosphere, located in stern, 660 gallon capacity, fillers capped below inspection plates flush to weather deck, shut-offs at engine room manifold. Water: Aluminum, vented to atmosphere, located in lazaret, 150 gallon capacity, filler plate flush to weather deck, shut-off at bottom of tank.


Electronics and Navigating Equipment


Ritchie compass; Furuno DGPS 37; Furuno GPS 30 with FBX2 differential beacon receiver; Standard Horizon 1000 video plotter; Simrad NSS EV02 plotter; Dual Sitex MDC 900A series radars; Simrad AP 48 and AP 44 auto pilots; Standard Horizon scrambler VHF; Icom M504 VHF; Icom M700 single sideband; Standard Horizon and Uniden handheld VHF's; Furuno FCV 585 fathometer; Furuno FVC 295 fathometer; Sitex Class A, AIS; Faria Vterm VMS; Global Star satellite phone; Inmarsat satellite phone; Alert II man overboard shutdown; Last Watch Commander helmsman alarms; Android cellular phone; Audiovox HD/TV/DVD; Jensen AM/FM radio with deck speakers; Russel Electronics "Black Box" trolling wire monitor.


Rigging and Anchor


Furford No. 6, with 125' 1/2" stainless steel chain and 300' 5/8" double braid mounted on custom hydraulic 16"x18" stainless steel anchor winch; spare 30# Danforth, with 20’ ½” chain, and 250’ 5/8” Sampson braid; 8” aluminum mast with 1000 pound capacity boom and hydraulic winch; 35’ aluminum poles with stabilizers; bow mounted hydraulic line puller; midship mounted hydraulic drum puller; 5’x7’ hydraulic trawl winch/net spool, fair lead, and wheel guard; two 3-spool hydraulic line pullers, boom mounted Hydroslave 14" hydraulic line puller.




One each, 1 1/2" Pacer hydraulic, and 110-volt Pacer bilge/washdown; three Rule automatic bilge pumps; electric Rule washdown; Shurflo on demand washdown, two manually operated Rule bilge pumps.


Fire and Safety Equipment


Four five pound Haltron extinguishers; one 2½ pound A.B.C. dry chemical extinguisher; one Fireboy FE 241 auto fire extinguisher in engine room; one automatic Halon at fuse panel; four-station fire alarm system; engine room smoke detector; bunk room smoke detector; three-station high water alarm system; Safe-T-Alert bilge, fire, and fume alarm; berthing area carbon monoxide detector; automatic 406 satellite EPIRB; complete offshore flares and smoke; 4-man self-inflating life raft; six life vests; six adult immersion suits; one child immersion suit; life ring with 60’ line and ACR automatic strobe.


Running Gear


Propeller: 28” x 20” four blade bronze “Michigan Workhorse” 

Shafting: 2” stainless steel Aquamet 22

Rudder and shoe: Stainless Steel 

Bearings: Neoprene, water lubricated


Miscellaneous Equipment


Stove, microwave, refrigerator, galley sink, enclosed head with shower and sink, chart table, air horns, ship’s bell, windshield wiper, Shurflo fresh water pressure system, 20 gallon hot water heater, 110 volt shore power, toaster oven.


Additional Research Equipment


Modified A-frame, scuba tank holders for 20 tanks, side mounted swim ladder, stern mounted swim platform with T-ladder, quick mount for transducers, multi-beam, transponders.


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