Mark Cameron Yachts

Nimbus 31 Ultima


Tardus like interior



Lying: Argyll, United Kingdom

General Information

Manufacturer/ModelNimbus 31 Ultima
New or UsedUsed
Sale StatusAvailable
LyingArgyll, United Kingdom


Hull ConstructionGRP Semi-Displacement


EngineVolvo Penta TAMD 40B. 197hp marine diesel engine. 6 cylinder, turbo charged, in directly cooled with raw water cooled intercooler.
Engine Hours470
Fuel Capacity280l


Drinking Water Capacity170l


Nimbus motorboats offer those making the move from sail to power the perfect compromise. Built to a high standard with an attention to detail lacking in most production power boats they are design with a focus on practicality and function. The hull of the Nimbus 31 Ultima proved extremely successful and underpinned a total of 4 different models over the years.

AMBER is presented afloat and in commission. In recent years she has benefitted from upgraded including:

Gas system upgraded to GasSafe standards 2017/18
Upgrading of fuel filtration system 2017/18
Replacement of skin fittings and seacocks for: raw water intake, heads inlet and outlet, galley sink drain 2017/18
Replacement upholstery in forward and aft cabins 2017/18
Installation of Merlin SmartGuage battery monitor 2017/18
Installation of Lofrans Project X1 electric windlass 2017/18
Installation of deck wash system 2017/18
Overhaul of turbo charger and intercooler 2015
Replacement of flexible exhaust system 2015
Installation of Roca pantograph arm, two speed windscreen wipers 2015

Offering comfortable accommodation for a total crew of 5 she would be an ideal family boat. A recent survey is available upon request. Lying afloat on a swinging mooring the Nimbus 31 Ultima AMBER is available for viewing by prior appointment.


Hull Construction:
Single piece, hand consolidated GRP moulding
Laminated internal hull transverse and longitudinal stiffening members
Plywood bulkheads laminated into hull
Semi-displacement hull form with small keel/shaft log aft
Externally finished in off-white gelcoat with blue style lines
Hull finished below the waterline in navy antifouling, applied spring 2022

Deck & Superstructure Construction:
Single piece, hand consolidated GRP moulding.
Integrally moulded hard top, cockpit & bathing platform
Curved forward windscreen with seperate side windows in alloy frame work.
Decks finished with moulded non-slip panels.
Rubber fendering rub rail fitted around hull to deck joint.
External finish in off-white gelcoat with blue style lines.

Keel & Rudder:
Skeg keel, formed as apart of hull
Bronze plate rudder supported on bronze skeg fitting


Volvo Penta TAMD 40B.
197hp marine diesel engine.
6 cylinder, turbo charged, in directly cooled with raw water cooled intercooler.
470 recorded running hours
Volvo Penta 1.95:1 reduction ratio gearbox.
Engine control panel with Tacho, temperature, oil pressure, boost pressure and voltage guages.
Single lever morse control with cables.

Maintenance & Performance:
Engine serviced autumn 2021
New primary fuel filter system fitted 2018
Turbo & intercooler overhauled 2015
Exhaust system re-worked with new flexible hose and exhaust temperature alarm fitted 2015.
Skin fittings and seacocks for engine cooling intake, heads inlet & outlet and galley sink drain replaced 2018.
Cruising Speed 12kts
Max Speed 17kts

Propulsion & Steering:
Stainless steel prop shaft
4 blade bronze propellor

Bow Thruster:
SidePower tunnel mounted thruster
Control on engine morse control lever

Trim Tabs:
Bennett electro hydraulic trim tab system
Rocker switch type controls at helm station


Voltage systems:
12VDC onboard power system
230VAC shore power system

Shore Power:
Extension lead to connect to shorepower
RCD protected system
3 pin 230VAC outlets
Battery charger
Immersion heater

Battery Banks:
Engine Bank - 2x 85Ah, 12v, lead acid.
Domestic Bank - 2x 85Ah, 12v, deep cycle, lead acid. (2018)

Battery Charger:
Sterling Switch Mode charger.
230VAC – 12VDC, 40amp.

Battery Monitoring:
SmartGauage battery monitor system

Roca pantograph arms with two speed motors.
Sonic Antifouling System - Sonic Shield system, not used by current owner


Fresh Water:
Full pressurised hot and cold water system.
Faucets provided in galley area, heads & aft cabin.
Shower provided within heads compartment.
Hot and cold deck shower on bathing platform.
Hot water provided from calorifier, heated by engine cooling water and 240v immersion heater element.

Gas System:
Replaced and upgraded to current GasSafe regulations winter 2017/18

Bilge Pumps:
Manual bilge pump
Electric bilge pump


Single diesel tank
Approximate capacity 280ltr

Fresh Water:
Single fresh water tank.
Approximate total capacity 170ltr

Tank Monitoring:
Analogue gauges for water and diesel tanks.


Navigation Instrumentation:
Depth Sounder - VDO system
Plotter - Garmin Echo Map 70 Series.
Autopilot - Robertson Data Line AP3000 with linear type drive unit at quadrant.
Compass - Silva 1000 compass at helm station

Communications Equipment:
VHF – Icom M323 DSCVHF


Galley Stove - Optimus two burner and oven gas cooker.
Refrigerator - Self contained Isotherm front loading type, with ice box. Fitted beneath helm seat.
Stainless steel sink

Jabsco manual marine toilet
Wash hand basin

Webasto Airtop 3900, diesel fired blown air system.
Thermostatic controller in cockpit
Outlets in all cabins with de-mister vents for windscreen.

TV - Celceus flat screen HD/DVD player TV in forward cabin. Nikkai repeater display in cockpit with built in DVD player and USB input.
Sony radio/cd player with speakers in cockpit

LED lighting throughout the accommodation space.
LED mood lighting provided in forward cabin
Auto switching lighting in lockers.


Description of Accommodation from Forward:

Forward Cabin:
Accessed by a central companionway from the cockpit.
Centrally mounted saloon table with wrap around seating in a U-shape forward.
Storage units at the aft end of the seating port and starboard.
Table drops down and infill cushion creates large double berth forward.
Opening deck hatch provides light and ventilation with portlights in hull port and starboard providing additional natural light.

Located to starboard of the companionway forward.
Self contained compartment with easy clean moulded finish with varnished teak trims.
Manual marine toilet outboard.
Counter top and inset stainless steel wash hand basin forward
Vanity unit beneath counter top

Pilot Cabin:
Located to port at the aft end of the forward living space.
Spacious single berth running under the cockpit along the port side.
Small standing area forward with storage locker outboard
Opening portlight allowing in natural light and ventilation.

Occupying the central part of the boat the elevated cockpit accommodates the helm and navigators seating, galley area and aft cockpit seating.
The hard top covers the majority of the cockpit with only the aft seating area being under the cockpit tent extension.
Helm station forward to starboard with dedicated seat, engine controls and navigation instrumentation all mounted forward and outboard.
Sliding hatches are provided in the hard top above both helm and navigators seating.
Navigators seating to port with grab handle and small chart table working area.
Wrap around seating is provided in a U-shape at the aft end of the cockpit with a centrally mounted, removable drop leaf table providing a secondary saloon which enjoys panoramic views.

Located immediately aft of Helm and navigators seating within cockpit.
Gas cooker to port with small storage locker beneath the cooker and navigators seating.
Stainless steel galley sink to starboard with chopping board infill and storage locker beneath.
Front loading fridge beneath the helm seating unit forward.

Aft Cabin:
The master cabin, accessed by a small companionway hidden behind the cockpit seating.
The cabin occupies the full beam of the boat aft of the cockpit.
Small seating unit to starboard
Centrally located wash hand basin unit
Double berth to port.
Storage is provided around the cabin in a selection of shelves and lockers.


Single tubular stainless steel fairlead.
Solid stainless steel guard rail with integral stanchions running the length of the side decks from wheel house forward.
Fender baskets fitted to port and starboard rails forward
Guard wire gate sections port and starboard midships.
Stainless steel pulpit rails port and starboard
Stem mounted self stowing anchor roller.
Centrally mounted electric anchor windlass self sowing chain into self draining anchor locker.
Open deck area forward of windscreen.
Stainless steel grabrails running the length of the wheelhouse superstructure.
Stainless steel antenna arch on top of wheelhouse hard top aft.
Small section of aft deck between cockpit and transom.
Integrated transom bathing platform with stainless steel swimming ladder and grab rails.

Canvas Work:
Cockpit Tent - Extending aft with frame work to cover aft end of cockpit and aft deck. Windows both sides and aft. 3 Roll up panels. Older secondary cover in same style also included.
Low Profile Cockpit Cover - No framework. Runs from hard top to deck. Heavy duty cover, ideal for winter.
Cabin Top Hatch Cover - With removable section in way of helm station sliding roof hatch.

Anchoring & Mooring:
Bower Anchor - 10kg Bruce anchor on 37m, calibrated 5/16ths chain. Stainless steel joining link fitted to extend chain.
Electric Windlass - Lofrans Project X1, powered up and down. Wired remote control.
Fenders - Selection
Mooring Warps – Selection

Tender - Avon Redstart, with snap davits fitted.
Snap Davits - Fitted on bathing platform.


General note on safety equipment: Any safety equipment such as liferafts, Epirbs, fire extinguishers and flares etc. are usually personal to the current owner(s) and if being left on-board as part of the sale of a used vessel may require routine servicing, replacement, or changing to meet a new owners specific needs.

Navigation Lights:
Steaming light
Navigation lights

Life saving:
Gas Alarm System - Alarm head in cockpit.
CO2 Alarm System- Alarm Head in cockpit.

In this case we are acting as brokers only.
The Owner is not selling in the course of a business. whilst every care has been taken in their preparation , the correctness of these particulars is not guaranteed. The Purchaser is strongly advised to check the particulars and where appropriate at their expense to employ a qualified Marine Surveyor to carry out a survey and/or to have an engine trial conducted which if conducted by us shall not imply any liability for such engine on our part.
This vessel is offered subject to prior sale, price change, or withdrawal without notice

Enquire about this Boat

    Available to view by appointment.

    Please note all our listed yachts are privately owned and located in the owner's home port or marina. Due to the varying geographical marina locations of our yachts and the subsequent travel time and distances involved, please only make travel arrangements to view if actively considering purchase.

    Office Hours Mon- Fri 08.30 – 18.00
    Saturday & Sunday by prior appointment

    For more information or to arrange an appointment please contact Mark Cameron Yachts

    Tel: +44 (0)7988 763254