Chantier Naval Biot Trireme 43

The Trirème 43 Ketch central cockpit is a cruising sailboat designed by architect François Charpentier, renowned for many high-quality racing and cruising sailboats. Built in steel by the Chantier Naval de Biot in France in 1981
Highly sought after by sailors wishing to undertake long voyages, cross the Atlantic, or live aboard. Rugged construction designed for the open sea, good sea behavior, spacious interior layout suitable for long trips.
This is not a mass-produced model, making it quite rare on the market.
French flag registered in Fort de France, French Antilles VAT and customs duties paid, visible in Martinique.
Layout:
Two double cabins
One double fore cabin
A head with washbasin and WC Lavac fully revised in 2022 with a new foot pump in March 2025
A small workshop forward starboard with a bench vise
Double cabin aft port with access via starboard side deck
L-shaped saloon to port with table and bench, lots of storage under benches and floors
Chart table on starboard
L-shaped galley aft port
Six berths possible
CD radio with speakers
12 V fans
Galley:
Double stainless steel sink
Electric fresh water pump
Complete fresh water pump overhaul in October 2024
Proline A+ 220V refrigerator
Two-burner stove with Eno oven on gimbal
800 L water tank
Pressurized cold water with expansion vessel + Seagull IV filter changed in October 2024
Water circuit refit June 2021 + water tank cleaning (3 tanks, 1x200L + 2x300L = 800L)
Sails and rigging:
Full overhaul of standing rigging in July 2022
Replacement of stays of the main mast and shrouds
Moored genoa with Profurl roller furling last revised October 2024
Genoa on roller with UV strip replaced in 2022
Profurl roller
New halyard for main sail July 2022
New mizzen mast August 2022
New main sail and mizzen cover in 2022
New Fisherman in August 2022
Shroud-mounted jib with detachable halyard
New in August 2022
Solent
Symmetrical spinnaker with sock
Two winches on the main mast
Two winches on the mizzen mast
Five winches in the cockpit
Electronics:
Raymarine loch navigation unit, speed/depth gauge, wind vane anemometer
New navigation cable
New 2025 Icom C330 VHF
New VHF cable
Autohelm autopilot on tiller, operates in compass and wind mode (course keeper)
Icom AIS receiver and transmitter
Furuno radar
Electrical system:
New navigation and anchor lights on masthead
Two 370 W solar panels from May 2021
Victron MPPT 30 charge controller, including one from May 2021
New July 2023 engine start batteries 2 x 100A
3000W inverter from May 2021
220V electrical system refit July 2021
New January 2025 Victron Deep Cycle AGM batteries 2 x 170A
Cristec 25A shore power charger
Propeller shaft alternator
Deck:
New April 2023 Lofrans Tigre 1500W windlass
Main anchor Rocna 25kg from 2022 with 60m 10mm chain replaced in May 2023
Secondary anchor Brittany 40kg with 60m chain
Additional anchors include Fortress and 24kg CQR with over 30m of 8mm chain
New August 2023 sun awning for cockpit
Solar panel arch with dinghy chocks
Deck shower
Rear locker with two 13kg gas bottles, one 3kg gas bottle
Divers:
New 2025 Plastimo PVC dinghy 2.70m
Yamaha 2-stroke 15hp outboard motor
Hull anodes replaced November 2021
Last antifouling September 2025
Tools, Karcher vacuum cleaner, spare parts
Spare parts for engine, electrical, plumbing, screws, etc.
Paint stock used for boat maintenance
Stabilizer vest and regulator
10 fenders
Several large and long mooring lines
12V bilge pump for bow
Automatic 12V bilge pump at the bilge
Survival raft Bombard for six persons, offshore, from 2018
One self-inflating lifejacket
Two survival suits
Four fire extinguishers
Crow’s nest
Refit injection pump and injector November 2022
New April 2023 Dumper
New April 2023 engine silent block
Line shaft alignment April 2023
New April 2023 exhaust elbow
New 2022 Hydra-lube ring + bellows
Oil changes done annually
2025 Cooling system upgrade
Complete fishing equipment