Jongert 31T

Main characteristics

• Type: Cutter Ketch
• Model: Jongert 31T, BN-419
• Shipyard: Jongert B.V., Holland
• Naval Architect: Jongert Design Team
• Interior Designer: Jongert Design Team
• Year: 2005
• Registry: Germany
• Hull: Steel
• Mast: Aluminium
• Length O. A.: 31.10 m / 102′
• Beam: 6.70 m / 21′11″
• Draft: Min. 2.50 m / 8′2″ - Max. 4.50 m / 14′9″ (Folding keel)
• Displacement: 113 t.
• Engine: 1x SCANIA 330 HP
• Accommodation: 8 guests in 4 cabins - 4 crew in 2 cabins

Technical description - Part.1

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CONSTRUCTION

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Hull material: Steel

Superstructure: Aluminium

Deck material: Teak

Hull paint: Awlgrip, all repainted 2014

Rigg paint: Full rigg paint Awlgrip April 2023

Antifouling: Full underwater paint in March 2025, Propeller + bowthruster with Propspeed

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RIG

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Rig Type: Ketch

Masts: 31m over waterline (main mast), 20m (mizzen mast)

Booms: 9.50 m over waterline (main mast), 5.60m (mizzen mast)

Standing Rigging: BSI all new rod rigg + new turnbuckels March 2023

Running Rigging: Regulary serviced + washed, new Passarella halyard April 2025

Masts: NIRVANA SPARS full service 2023 

Booms: NIRVANA SPARS full service 2023

Furlers: Main / Mizzen hydraulic furling system

RECKMAN RF 90-4 R5 & R4 furlers for Genoa / Yankee & Staysail

Full service 3 furlers by Reckman Germany

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SAILS

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Main: MILLENIUM 107,30 m2 2014

Mizzen: MILLENIUM 42 m2 2014

Staysail: MILLENIUM 74 m2 2014

Yankee: MILLENIUM 160 m2 2014 lightly used

Genoa: MILLENIUM 270 m2 2014

Gennaker: NORTH SAILS 500 m2 2014 like new, in storage since 2023

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MACHINERY/PROPULSION

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Main engine: 

• SCANIA – 243KW / 330 HP
• serviced regularly by authorized Scania companies, overhaul in 2023
• Cylinders: 6
• Year: 2004
• Engine hours: 7’536 hours (10/2025)
• Gear box: TWINDISC
• Speed (max): 11.00 kts
• Speed (cruising): 9.00 kts
• Consumption main engine: 35 L./h
• Range: 1300 miles @ 9 kts

Generator 1:

• KOHLER / 27 kW, serviced regularly by authorized companies 
• 9’338 hours (10/2025)
• Consumption: 7 L./h

Generator 2:

• KOHLER / 27 kW serviced regularly by authorized companies
• 9’330 hours (10/2025)
• Consumption: 7 L./h

Bowthruster type: 70 HP

Prop Shaft: VAN VOORDEN, OA 80 S DBK, consists of closed system with self-centring 

radial bearing and axial thrust bearing in an Oil bath

Propeller: VAN VOORDEN, made of NiBrAI, with five fixed blades

Monitoring: VDO main engine control

Camera surveillance system on aft deck & engine room

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TANKAGE 

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Fuel Tank: 5’000 L. cleaned in July 2024

Fresh water tank: 3’500 L. 

Waste water tank: 1’100 L. (combined black and grey water)

04/2025 pressure washed, sandblasted, painted

Waste treatment system HAMMAN system 200 L./hr, regularly serviced + in storage chemicals

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AUXILIARY EQUIPMENT

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Water maker: H.E.M. Series 25, 250-300 L./h, regularly serviced

Power Pack: HYDROMAR, with 3 electric 4kW pump units, serviced + replaced

Bow thruster: HYDROMAR HBT-GF-II-33kW-CU, operated with joystick (new July 2024)

Water treatment: HAMAN AKL-CONT Super Mini, 1/17

Steering System: HYDROMAR HF-210 hydraulic steering system with WHITLOCK wheel 

Pneumatic system: KAHLENBERG Compressor CE-50A-24V, with Air Horn T1, 

Ventilation System: Internal ventilation system with fresh air entering in the mast on 1st Spreader and forced distribution throughout the yacht, outtake is via dorades on deck

Ventilation engine room: HEINEN & HOPMAN HU-40-10-2 in- and out

Air conditioning: VECO CLIMMA CWS 722S, with Reverse Cycle for cooling / heating, fancoils in: 2x crew cabin, 1x dinette, 2x wheelhouse, 2x salon, 2x owner’s cabin and 3x guest cabin. Full service in July 2025, see separate list

Hot water heater: 300 L.

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INSULATION

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Thermal Insulation: all surfaces adjoining the open air, from 10cm under the waterline to the deck, including super structure, received a polyurethane insulation up to 30mm.

Special attention was given to reduce the noise & vibrations transmission on board. 

A viscoelastic damping treatment was made on top and on the sides of the engine room bulkheads, as well as the propeller shaft area and aft of waterline. The interior of the engine room is covered with mineral wool, followed by a sound damping sandwich metal plate. Against the hull there will be a layer of mineral wool covered with firet cloth and a perforated plate. 

Additionally, the outside of the engine room bulkheads as well as the top is covered with mineral wool.

In-between the owner’s and guest cabins “multi-Sandwich” bulkheads with integrated lead layers were installed to achieve a maximum noise level of 65dB(A) with the main engine running at 1.500rpm. 

Furthermore, the complete interior is “floating” for maximum noise reduction.

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Technical description - Part.2

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ELECTRIC SYSTEM

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Batteries: 12x MASTERVOLT, 2V Gel Cells,1510 A/h, new 03/2016 

Shore power transformer: Eremu 43 KVA transformer new 05/2025

Inverter: 3x MASTERVOLT ULTRA, 24/ 4000W Sinewave Inverter

Propeller Shaft: 1x 24V-Alternator on propeller shaft 

Battery Chargers: 3x MASTERVOLT, MASS 24/100-3 Phase Battery charger

1x MASTERVOLT, MASS 24/25-2 Phase Start Battery charger

Lightning: 24V Halogen lightning throughout the yacht

New LED indirect light in saloon, owners + guest cabins

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NAVIGATION EQUIPMENT

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Navigation system: Brokes & Gatehouse (B&G) Hydra 2000

Barograph: Barigo Germany 2005

Wind+speed direction: B&G Hydra 2000

Close+hauled and running: B&G Hydra 2000

Autopilot: B & G Hydra 2000 PILOT with 1x Hydraulic pump (full service 2024) run via hydr. Pump on propeller shaft and 1x Electrical pump as backup

Compass: 1x Compass magnetic C. PLATH

Gyro compass: 1x Sperry Marine gyro compass, NAVIGAT 100, new in 4/2018 regulary serviced

GPS/plotter: 1x FURUNO GP32 in wheelhouse, interfaced with B&G Zeus plotter & AIS, Steering station on deck 1x FURUNO Model 1824C with Plotter & Radar screen also interfaced in auxiliary AIS System

Radar: 1 x FURUNO ARPA 96MN / 1 x FURUNO 1964C-BB

Navtex: 1x FURUNO NX 500 Receiver

Echo sounder: B&G Hydra 2000

Rudder angle indicator: B&G 

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COMMUNICATION

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GSM: GSM antenna new 2024 

VHF-Radio: Wheelhouse Sailor RT4822 VHF – DSC

VHF DSC Radio: Outside helmstation Furuno HS 4800 new 2024

SSB-Radio: Wheelhouse Sailor HC 4500B MF/HF

Intercom: Siemens Gigaset DA 210

Internet Teltonika router

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DECK EQUIPMENT

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Winches: 5x hydraulic winches, 5x manual winches, 7x Lewmar, regulary serviced

Windlass: 2x hydraulic Hydromar, full service 2024

Passarella: Stern combined with swimsteps

Bathing ladder: Port side rebuild 2023

Deck shower: At the stern

Anchor: 1 x 180Lbs CQR, 1 x 140 Lbs CQR & 2 x 120m x 13mm 

Deck wash system: Midship 

Awning: New fixed Bimini over outside table 2023, awning over main boom 2023

Sun matresses: 20 m2 including new frotee covers

Canvas Cover: Covers for all varnished areas

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APPLIANCES

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Bottle cooler bridge: Vitrifrigo 60 liters 12/24 Volts

Bottle cooler saloon: Vitrifrigo 60 liters 12/24 Volts

Refrigerator galley: 1 x Electrolux 400 L.

Deep freezer galley: 1 x Electrolux 400 L. both with hermetic compressor in bilge

Micro wave oven: Miele M637 EC

Stove: Miele

Dish washer: Miele Professional G7855, new pump in 2024, new mainboard 2025

Washing machine: Miele W1 8 kg, new in 2023

Dryer: Miele professional T5206

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ENTERTAINMENT

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TV: 1 x owners, LG LED new in 2023, 1x saloon, LG LED new in 2023, 1x crew mess

DVD/Video: DVD/CD player 8 x

Stereosystem: Radio / Hifi 8 x

TV Sat receiver: KVH 8 TracVision

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ACCOMMODATIONS

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Owner: 

• 1 full width aft cabin with double berth and ensuite bathroom

Guests: 

• 1 VIP cabin with double berth and ensuite bathroom (amidship stb side)
• 1 cabin with double berth and ensuite bathroom (aft port side)
• 1 cabin with twin berths and ensuite bathroom (amidship port side)

Crew:

• 2 cabins forward with upper and lower berths and ensuite bathrooms
• 1 crew mess
• 1 galley

Saloon:

• 1 deck saloon
• 1 lower saloon

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TENDER

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Tender: Honwave TB 400 console 4 meters 2016

Engine (tender): 30 hp Honda 4 stroke 2016

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SAFETY

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Life raft: 2 x seasafe pro light PLF Solas B, new 2023

Life jackets: 20

Life belts: 20

Distress flares: Yes, regulary replaced 

Bilge alarm: 4 compartments, controlled on PMS at bridge

Fire-extinguishing system: 1x FIREPRO Aerosol fire-extinguishing installation, 1x A.B.S. -HFC227, operated either manual or automatic as 2nd system, annually serviced

Fire-extinguishers: AJAX 2Kg GD—20C powder extinguishers & fire blankets according to Lloyds rules and regulations

EPIRP: Sailor 4065 406 & 121.5 Mhz, regulary serviced

Security camera: At stern and in engine room

Safe: 1x in owner cabin, 1x in captain cabin

MAINTENANCE & SERVICE WORKS

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WORKS 2023:

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Engineering:

- Main engine partly new dry exhaust pipe in engine room including new heat insulation

- All flexible Hydraulic hoses in engine room replaced

- Main engine + 2 generators full service, overhaul according to running hours

- Engine room lights replaced with LED

- Haman sewage treatment plant, new waste pump and valves

- Main seacocks in engine room new including valves

- Rheinstrom housings for shower pumps aft + forward replaced

- New ventilator for fresh air support aft ship

- PC back up 2 new batteries

- New Janitza control unit in engine room for forward generator

Deck:

- Complete rigg refit all new rod stays + turnbuckles from BSI Denmark

- 2 Forestay furlers fully serviced by Reckmann Germany

- Main + mizzen mast furlers fully serviced by Nirwana Holland

- Full rigg + spars paintjob

- 2 new hydraulic motors for deck winches

- New Bimini inox structure over cockpit + Sunbrella cover

- Dodger new Sunbrella cover + cover for windows

- 2 CQR anchors sandblasted and galvanized

- Steering wheel new leather

- GSM antenna new

- Nera fleet 77 antenna dismounted as system is out of service

- 4 new black docking lines

- 2 new topping lift lines for main + mizzen boom

- New sun awning over main boom to cover sunbeds

- New tender cover

- 2 new life rafts Seasafe pro light Solas B

- 4 new Lewmar deck switches at stern for passarella

 

Interior:

- 2 new HD TV screens in saloon + owner’s cabin

- Freezer replaced delrin slides for drawers

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WORKS 2024:

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Engineering:

- All flexible hydraulic hoses aft ship section replaced

- New GPS receiver Furuno GP 32 at bridge

- New VHF handset Furuno HS 4800 outside helm station

- 4 new starter batteries for main engine + 2 generators

- Waste tank pressure-washed

- Hem watermaker full service by authorized company

- Fresh water expansion tank cleaned, serviced, new rubber insert

- Fresh water tank opened, cleaned, paint touch ups

- PLC monitor system + PLC powerpack new back up batteries

- Fridge + Freezer in galley, new door seals custom made

- New AIS PC + switchbox / splitter

- 2 Diesel tanks pressure washed, cleaned by authorized company including all fuel suction and return lines

Deck:

- All varnished areas outside stripped to bare timber, varnished 15 coats

- MOB device new Danbuoy horseshoe

- 13 new white dorades from Vetus Holland

- Fairleads on aft platform new delrin rollers

- Cockpit table stripped to bare timber, new varnish build up 15 coats

- Sliding door out, serviced, new rollers

- Saloon roof partly recaulking on teak deck

- Cockpit entrance new teak deck corners

- Swim steps modified for better access onto deck

- Deck storage boxes new varnish inside

Interior:

- Owners’ bathroom new indirect LED light

- Step lightning all 16 changed to LED

- 6 new mattresses covers for owners + guest cabins

- Miele dishwasher new main pump by Miele service

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WORKS 2025:

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Engineering:

- Main shaft and rudder removed, serviced, complete new bearings + bushings, new clutch to gearbox, shaft laser aligned

- Scania main engine, h 7504 new raw water impellor, oil centrifugal serviced, Heat exchanger + oil cooler full service

- 4 new silent blocks for main engine ( ME )

- Generators forward + aft h serviced according to hours and service plan      

- Both generators new exhaust separation valves fitted

- Folding keel out of water in “chairs” serviced 14 bolts + new nuts + washers

- Wastewater tank, pressure washed, sandblasted, Ultrasonic tested, painted with special 2 component paint.

- 2 steering hydraulic cylinders, full service, new seals, 4 main hydraulic hoses replaced

- Air compressor electrics repaired

- Complete under water sanded, applied primer where necessary, 

- 2 antifouling coats, 3 coats on waterline, Propellor + bowthruster applied 2 coats of propspeed

- 16 air-condition fancoils in all cabins, full service, cleaned ducting, cleaned fresh air supply hoses

- Outside helm station new VHF Furuno type HS 4800 handset

- 4 new custom chairs for haul out to have the folding keel in maintenance position, fabricated at Jongert in Holland

- 3 new navigation light

Deck:

- All Corrosion spots on blue hull, sanded, primer applied, fairing applied, final awlgrip topcoats

- Teak deck 45-meter caulking replaced

- Outside helmstation teak new varnish

- 7 deck hatches, new Perspex + paint job on hatch frames

- Passarella 2 new inox bushings welded for reinforcement 

- 2 hydraulic cylinders serviced new seals, 4 hydraulic hoses replaced + new lifting lines

- Wooden sideboards on bow, stripped varnished, 15 new coats including the figure head

- Wooden reeling aft, new covers to safe the varnish

Interior:

- Bridge + saloon tabletops, sanded and 12 new coats varnish

- Owners cabin floor, partly revarnished

- New LED indirect light fitted in 4 guest cabins + saloon

- 4 new handrail sections in guest cabin hallway mounted

- Galley oven, replaced gimbling mechanism

- Saloon all new curtains

- Miele dishwasher new main electronic switchboard

Disclaimer

Haas International offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.