Steel trawler

1

Twin John Deere 160 hp each Tier III certification engines; Other engines available 

if desired;

2

Audio and visual warnings for engine water flow, high bilge water, high engine room temperature, pumps running, engine room lights or blower on;

3

Fuel polishing   systems with priming pump;

4

Spray foam insulation around engine room, hull sides, superstructure and decks

for sound and temperature insulation;

5

4000 watt inverter/charger with Link 2000 control panel or equal, and 24 volt 500 AH glass mat house battery bank;  .

6

12kw toroidal shore power isolation transformer; 110/220 volt input and output;

7

24 volt Muir electric windlass or equal, with

8

350 feet 3/8 inch chain rode and 75 kilo anchor;

9

Four dock lines and 2 long spring lines, 1" nylon;

10

24 volt Electric dinghy crane (small hard dingy or inflatable inquire);

11

Full galley with stove and oven and microwave;

12

Double sink;

13

Refrigerator with freezer;

14

Insulated built in freezer, 24 volt compressor;

15

Vented clothes washer-dryer;

16

Navigation compass;

17

TV and Stereo antenna installations;

18

Dash LCD  TV with cameras aft and in engine room, extra cameras optional;

19

Quality stereo with USB input and 4 high quality speakers on upper deck;

20

Deck wash pump with 50' hose stored on aft deck and second hose bib at

bow for anchor wash;

21

Remote control spot light for security;

22

Exclusive powerful LED bow and stern mounted debris/ice/crab

pot lights.  Stern light powerful enough to deter boarders;

23

Ship’s safe, manual key;

24

Two 200 watt solar panels with MPPT regulator;

25

Work boat hull finish to buyer’s color choice; Hull fully faired optional.

26

International (or equal) triple epoxy seal inside and out plus quality anti-fouling paint   

applied and LPU exterior finish color to owner's choice

27

Commercial quality ship's windows, ports with cast aluminum dead-lights and sea doors;

28

Heavy duty rub rail on hull;

29

Shower fixture on aft platform;

30

Cushions, mattresses and curtains, local material, your color choice;

31

Granite type counters, your color choice;

33

Interior finish to yacht quality with painted walls where applicable;

Teak veneer walls in living room, dining room and pilothouse;

Hand rubbed teak wood doors and drawers; Build-in lockers with louvered doors; 

Teak and holy style flooring; 

34

SAFETY PACKAGE includes:

Eight person off shore liferaft;

10 Solas life jackets;

Two throw rings with holders;

EPIRB;

Large solas commercial ship flare package.

35

For other standard equipment refer to Pages 4 to 7 of O55 GENERAL SPECIFICATIONS.

$19,000

for NL 12kw genset;

$14,000

Hydraulic Bow thruster;

$13,000

Webasto style diesel heating system, seven outlets;

$21,000

Marine air conditioners with heat option, 6 self contain units;

$1,400

FloScan Cruisemaster fuel use meter with totalizer on both engines;

No Need for electronic engines

$980

Water-maker, shore power or 24 volt, Wire and plumbing only;

$10800

24 volt Water Maker, 200 GPD;  Other   water-makers, inquire.

$7,500

 Hydraulic deck crane 600Lb Lift;

$4500

Iridium satellite telephone with external marine antenna and data link   for email;

$700

Jabsco 24 volt hi pressure anchor washer;

Inquire, Interior layout changes and special woods or colors;

Inquire, Entertainment systems;

Inquire, Covers and canvas work.

Inquire, Electronic package;

Inquire

Full SimRad electronics package,

Radar;

Sounder;

Chartplotter;

Back up steering system hydraulic cylinder   with Autopilot;

Magnetic compass;

VHF;

AIS Transeponder;

Or Raymarine   electronic package;

Others;

To be decided

30% charges being import handling/ labor/accessories on Owner Supplied parts.    N/C for loose items.

LWL

52’10”      16.100 m

Beam   Molded

19’8”        6.000 m

Depth   Molded

8’1”         2.470 m

Draft

5’6”         1.680 m

Displacement

127,900   lb   58 T

Engine

Twin John Deere160 hp   each Tier III certification engines; Other engines available on request.

Cruising   Speed

7 knots

Max   Speed

9 knots

Fuel ,5   tanks

3220 Gallons   approx.

Water, 2   tanks

2410   Gallons approx.

Accommodation

3 Staterooms,   3 toilets standard 

Made

Steel

Model  

O55  (O55 Coastal   version or O55 LRC version)

Designer

Seahorse Marine Ltd

Builder

Seahorse Marine Ltd

CONSTRUCTION:

High quality ship steel shot peened or sand blasted inside and out,                              

three coats of Jotun (or equal) epoxy primer interior and exterior,

four coats on the bottom, plus bottom paint and color top coat.

Color scheme to owner's choice.

Hull construction to ship society’s practice. X-ray check on every boat,

All tanks pressure tested and marked plus incline test of sister-ship.

Seven water tight compartments including keel tanks and anchor locker, connected 

by water tight doors or large bolted inspection plates where needed.
All hatches, ports and windows and sea doors to be heavy duty commercial ship quality.

Lower deck entry ways have beautiful teak "Dutch" doors for normal use with exterior 

aluminum sea doors for   extra protection in rough conditions.

All plywood to be weather proof grade or higher.

MECHANICAL   and PLUMBING

Twin John Deere 160hp diesels with marine transmissions.

Other engines available if desired.

Complete engine instrumentation including high temperature, low oil pressure alarms, 

high output alternators.
Two inch stainless shafts mounted in thick fiberglass shaft tubes epoxied  into

schedule 80 steel shaft logs.

Non-metallic Morse bearings. Perko grounding brushes. 
Prop aperture and engine mounting designed to minimize vibration and noise and protect props from under water obstacles or debris.

PSS Dripless seals on prop and rudder shafts.
Sea chest with stainless ball valves for all sea water inlets.

Primary   and secondary fuel filters.
   (Page 4 of 7)

Drip pan under engines.

Wet exhaust system with custom designed water lift muffler.

Quiet, large capacity engine room blowers with noise isolated vents.
Steel fuel tanks well baffled and braced including sight gauges and large inspection ports.

Stainless steel ball valves at each end of fuel lines.
Fuel and engine oil polishing systems with priming pump.
Five tanks approximately 3220 gallons total,

well vented with 2" deck fills for easy filling,

plus keel operations tank.  

Fuel tanks vents lead to a deck mounted spill boxes port and starboard which also c

ontains the deck fill to protect against accidental oil spills during fueling.

Steel Rudder skeg hung from fins to protect shaft and prop.

WORKSHOP  AND STORAGE ROOM, 100 Sq.';

Located under the galley area, is estimated   approximately 100 Sq ‘.

ELECTRICAL:

Separate heavy duty engine and dual house batteries connected by

vapor proof master switches.

Start batteries are 200 AH,

house batteries are 500 AH AGM (Glass Mat).

4000 watt inverter/charger with Link 2000 control panel or equal.
Back lighted custom made circuit breaker panel using high quality breakers.

Shore power master breaker is GFI (RCI)  type for safety.

AC receptacles through out.
Indirect lighting and red safety lighting at steps.

24 volt LED lighting; quality lighting fixtures.
All Seahorse Marine installed wiring is multi-strand tinned copper cable.

Wires have color or marker codes for easy tracing.

Wire runs in conduit and all runs, except the bilge pump, are located as far above

the waterline as possible.
All wire runs including those along the shear are easily accessible.
10,000 watt AC Isolation transformer.
Lightning protection system.
AC shore connector fitted on waist deck, starboard side.

DC socket installed in pilothouse.
Multiple zinc's on hull, standard size bolted, not welded.
International LED navigation lights and anchor light installed.
Red interior night safety lighting .

Pilothouse lights have red night vision lighting as well as standard white bulbs.Signal horn, remote control spot light, flood lights fore and aft.
Optional electronic and entertainment equipment can be planned in advanced with owner so necessary wiring, grounds and cabinets can be built in.

WATER  SYSTEMS:

Two water tanks, approximately 1000 gallons total,

with ball-cock shut off valves and vents designed to prevent salt water contamination.
Fresh water system uses aluminum/vinyl tubing, not plastic.

Stainless ball type sea-cocks on all thruhulls below the waterline.
Double all stainless clamps on all hoses below the waterline.

Hot water heater with electric and engine heat exchanger for domestic water   supply.
High quality bath and galley fixture.

(Page   5 of 7)

BILGE   PUMPS:

Two large electric bilge pumps with float switches.
Two manual bilge pumps. All bilge sumps to be epoxy coated.

HEADS:

Heads include Techma (or equal) trouble free non-jamming electric toilets,

shower, basin and storage.
Three electric toilets plumbed to holding tanks.

Tanks located above waterline and empty by gravity or deck fitting.

Gray water tank optional.

Heads have power ventilation on timer switches.
Towel rails are to handrail strength.
Mirrors are fitted in head.

HULL   LIGHTING AND VENTILATION:

Aluminum frame opening hull ports and windows,

commercial ship quality with solid storm coverings.
Deck hatches forward for ventilation and safety exit.
Natural and forced ventilation in hull for comfort when conditions dictate a closed boat.

DECK:

1 1/4" Steel pulpits and hand rails 36" high for safety.

Extra high 1 1/4" rails around   pilothouse doors.
Stainless steel heavy bollards and chocks for lines, not painted steel.
Boarding gates port, starboard and aft.
The foredeck has stairs P&S to the boarding (waist) decks and a stair to pilothouse deck.
Heavy duty anchor pipe at bow, 75 Kilo anchor and 300' of 1/2" chain

with Muir "Thor" 3500 lbs windlass.  

Large folding stern platform, provides stern boarding protection when under way.

UPPER DECK HOUSE FOR O55 COASTAL VERSION ONLY,174 Sq'

Note: Not available on the LRC version.

This deck house is the main saloon and includes large opening windows and a double 

door to a large aft deck.

Steps lead up to the pilothouse and the stairway to the lower deck is protected 

by stainless rails.

BOATDECK:

A ladder leads to the saloon top where there is dinghy storage protected by rails, 

alternately aft dinghy davits can be installed

Note:  On LRC version the boat deck is above the first deck.

PILOTHOUSE  AREA:

100 Sq' Standard interior includes a center helm station,

lots of seating, a large desk which can be used as a chart table,

file drawer type storage cabinet and a raised dinette.

Note: On LRC versions there is a pilot berth installed.

Two doors to side decks P&S.
Folding radar and antenna mast on top of pilothouse.

Engine and gear controls in pilothouse.

 (Page 6 of 7)

Marine circuit breakers for all boat operations and for planned electronics installation,

Audio and visual warnings for engine water flow, high bilge water,

high engine room temperature, pumps running, engine room lights or blower on;

pump over run alarm comes on if any pumps operates continuously for one minute.

Audio alarm can be defeated only with key switch.
Stainless or teak wheel at helm, heavy duty hydraulic steering.
Panto-graph windshield wiper on opening center windshield.
Tinted side windows available in pilothouse,

tinted forward windshields not recommended.
Windshields are heavy safety glass and pilothouse design reduces

water pressure on glass and boat structure in a serious green water situation.

Center windshield opens.

LOWER   DECKHOUSE, 769 Sq.':

The lower deck has a crew room forward of a full collision bulkhead with

double bunks, its own head.

Aft of the collision bulkhead are two staterooms and one head, including hallway.

One double bed cabin and one double bunk bed cabin with hanging lockers,

desks and storage.

A head available to both has an electric toilet and separate shower.
The large galley, 140 Sq', is fully equipped and has a sea doors to starboard and port.

The port boarding deck includes a large secure storage locker.

At the starboard entrance there is a wet locker and entrance ways to the dining room

aft, steps to the upper deck and entrance to the dining room aft.

Note: on the LRC version the dining room also serves as the main saloon.

Aft of the dining room is the master suite, 180 sq’ with a TV cabinet, a small desk with

chair, book shelves, large hanging lockers, lots of storage, its own head with full size tub

or enclosed shower, and a sea door to a private deck aft with large folding swim platform.

Remark:   Interior of the lower deckhouse other than above can be modified to meet 

Owner’s requirements.

(Note: To reflect supplier updates and safety improvements Seahorse Marine reserves

the right to modify specifications as needed.)   

Mar 2026