2021 Ultimate Boats X-Class - Photo 1
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2021 Ultimate Boats X-Class

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motor used Listed 0 days ago

Specifications

Make Ultimate Boats
Model X-Class
Year 2021
Length 36.1ft (11.0m)
Beam 3.10m
Draft 0.60m
Hull Material GRP
Engine 2x Suzuki DF350 Petrol outboard engines 350hp with Suzuki Optimus 360 joystick control system with GPS stand on station function, 300 hours
Fuel Type petrol
Location Portsmouth, Hampshire, United Kingdom

Equipment & Extras

Name
STORMBIRD
Designer
John Moxham
Max Speed
83.34kph
Reference
2838321
Sale Status
Available
Displacement
2650kg
Fuel Capacity
1000l
  • Suzuki Optimus 360 joystick control system with GPS stand on station function
  • Single station electro-hydraulic steering system
  • Zipwake Interceptor Dynamic Trim Control System
  • Exalto digital windscreen wiper control system
  • 2x Raymarine Axiom PRO 16” MFD displays
  • Raymarine Quantum digital radar scanner
  • Raymarine CHIRP fishfinder transducer
  • Raymarine CAM300 Eyeball Day and Night camera
  • Raymarine RAY63 VHF
  • Raymarine AIS700
  • Fusion RA770 touchscreen marine stereo system with Airplay 2 software and Wi-Fi streaming
  • Fusion Signature Series 3i speakers with LED backlighting
  • Keyless start system
  • Power trim and tilt
  • Stainless steel Suzuki Duo-Prop
  • NMEA 2000 gateway
  • Sea Star Optimus Sport Plus Tilt electric helm unit
  • Hydraulic pump and steering rams
  • 12VDC onboard power system
  • Port Engine Battery – 1x 12VDC
  • Starboard Engine Battery – 1x 12VDC
  • Domestic Battery – 1x 12VDC
  • Freshwater screen wash
  • LED navigation lights
  • 12VDC auxiliary USB charging sockets
  • Contactless phone charging station on dashboard
  • Manual Bilge Pump
  • Electric Bilge Pump
  • Twin stainless steel fuel tanks (1000ltrs total)
  • Fuel distribution manifold
  • Magnetic Compass
  • Waeco front loading fridge with ice box
  • Red LED lighting in cockpit
  • Aft cockpit LED floodlight
  • Individual, forward-facing, shock mitigation seating for six
  • Shoxs X4 shock mitigating seat bases
  • Blue leather upholstery
  • Spray Covers (removable, black with window panels)
  • Aft Cockpit Door (roll-up central panel with windows)
  • Cushion Covers (for forward and aft external seating)
  • CQR plough anchor on chain and warp rode
  • Lewmar low-profile electric windlass
  • Mooring Warps
  • Fenders
  • Inflatable Dinghy
  • Torqueedo electric outboard
  • Single stainless steel bow roller
  • Additional detachable bow roller
  • 7x Stainless steel, gunwale mounted mooring cleats
  • Stainless steel samson posts
  • Stainless steel grab rails
  • Double seat with stitched leather upholstery
  • Bench seating across aft end of cockpit with stitched blue leather upholstery
  • 6 person valise liferaft (2021)

Market Position

Priced below 75% of similar listings

Based on 4 comparable boats

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Description

Using technology from the Valkyrie supersonic bomber of the 1960, the Ultimate Boats, John Moxham designed a hull that differs from all that have gone before. Exploiting a design principle where water is entrapped below the hull, rather than thrown out to the sides, the boat rides on a cushion of entrapped water. This cushion provides hydraulic lift, giving a much flatter trim than a normal RIB, as well as offering blistering performance, unrivalled handling and surprisingly smooth ride. The Ultimate Boats X-Class is the Rolls Royce offering from a builder normally focused on commercial craft. Built for a discerning owner STORM BIRD has been fitted out to the highest standard with a packed inventory including highlights such as: Twin Suzuki DF350 Petrol outboard engines Single station electro-hydraulic steering system Zipwake Interceptor Dynamic Trim Control System Exalto digital windscreen wiper control system 2x Raymarine Axiom PRO 16” MFD displays, fully configurable Raymarine Quantum digital radar scanner Raymarine CHIRP fishfinder transducer Raymarine CAM300 Eyeball Day and Night camera, displaying on Axiom MFD Raymarine RAY63 VHF Raymarine AIS700 Fusion RA770 touchscreen marine stereo system with Airplay 2 software and Wi-Fi streaming Fusion Signature Series 3i speakers with LED backlighting Currently stored in a drystack facility in the Solent the Ultimate Boats X-Class STORMBIRD is available for viewing strictly by prior arrangement. CONSTRUCTION Hull Construction: Single-piece FRP moulded hull Hand-laid and consolidated solid glass laminate Vinylester skin coat with polyester laminate CNC milled PET foam forming an internal structural matrix, fully laminated to hull internally Plywood and stainless steel-reinforced transom Grey gelcoat finish to hull externally Kevlar-reinforced PU foam collar with protective PU coating applied in factory, black finish Deck Construction: Sandwich laminate construction deck PET structural foam core with hand-consolidated polyester laminate Stainless steel frame work laminated to underside of deck to secure seating Flexiteek decking to finish deck throughout and along gunwale tops Superstructure Construction: Single-piece GRP moulded superstructure Sandwich construction, PET structural foam core with Danu-infused laminate Toughened glass windscreen with hinged top section Top of sandwich construction, PET structural foam core with Danu-infused laminate Stainless steel mast mounted at aft end of the superstructure roof MACHINERY Port Engine: Suzuki DF350 Petrol outboard engines 350hp V6, 4,390cc, 6-cylinder, 24V DOHC, electronic fuel injection, 4-stroke petrol Full throttle operating range 5,700 – 6,300rpm 12VDC, 54amp alternator Keyless start system Electronic, single lever control Power trim and tilt Stainless steel Suzuki Duo-Prop Suzuki Multi-Function display with engine status and on-board diagnostics NMEA 2000 gateway, allowing engine status and gauges to display on Raymarine Axiom MFD’s Suzuki Optimus 360 joystick control system with GPS stand on station function and independent status display Starboard Engine: Suzuki DF350 Petrol outboard engines 350hp V6, 4,390cc, 6-cylinder, 24V DOHC, electronic fuel injection, 4-stroke petrol Full throttle operating range 5,700 – 6,300rpm 12VDC, 54amp alternator Keyless start system Electronic, single lever control Power trim and tilt Stainless steel Suzuki Duo-Prop Suzuki Multi-Function display with engine status and on-board diagnostics NMEA 2000 gateway, allowing engine status and gauges to display on Raymarine Axiom MFD’s Suzuki Optimus 360 joystick control system with GPS stand on station function and independent status display Maintenance & Performance: Engines fully serviced by Suzuki agents since new. Engines serviced and winterised November 2025 Engine hours recorded at 300hrs (November 2025) Cruising speed 30kts Max speed 45kts Steering: Single station electro-hydraulic steering system Sea Star Optimus Sport Plus Tilt electric helm unit, fully configurable Hydraulic pump and steering rams. Trim Tabs: Zipwake Interceptor Dynamic Trim Control System Zipwake S-Series control panel Integrated with Raymarine system to allow control from Axiom displays ELECTRICAL SYSTEMS Voltage systems: 12VDC onboard power system Battery Banks: Port Engine Battery – 1x 12VDC Starboard Engine Battery – 1x 12VDC Domestic Battery – 1x 12VDC Battery Monitoring: Battery voltages displayed on Suzuki displays or Raymarine Axiom Displays Windscreen Wipers Exalto digital windscreen wiper control system Dual pantograph wiper arms to port and starboard Freshwater screen wash Navigation Lights: LED navigation lights Other Electrical: 12VDC auxiliary USB charging sockets at navigators seat forward and to port and starboard above cockpit storage units Contactless phone charging station on dashboard PLUMBING SYSTEMS Bilge Pumps: Manual Bilge Pump Electric Bilge Pump TANKAGE Fuel: Twin fuel tanks with independent fillers Custom made stainless steel construction Approximate total capacity 1000ltrs Fuel distribution manifold to allow selection and isolation of tanks Tank Monitoring: Fuel consumption data displayed on Suzuki displays along with % of fuel left Fuel statistics displaying on Raymarine Axiom displays NAVIGATION & COMMUNICATION EQUIPMENT On Deck: Plotter – 2x Raymarine Axiom PRO 16” MFD displays, fully configurable Radar – Raymarine Quantum digital radar scanner, displaying on Axiom MFD’s Fish Finder – Raymarine CHIRP transducer CCTV – Raymarine CAM300 Eyeball Day and Night camera, displaying on Axiom MFD DSC VHF – Raymarine RAY63 VHF AIS – Raymarine AIS700 Magnetic Compass DOMESTIC EQUIPMENT Galley: Fridge – Waeco front loading fridge with ice box, 12VDC Lighting: Red LED lighting in cockpit Aft cockpit LED floodlight Entertainment: Stereo - Fusion RA770 touchscreen marine stereo system with Airplay 2 software and Wi-Fi streaming Speakers - Fusion Signature Series 3i speakers with LED backlighting DECK LAYOUT Cockpit Layout: Individual, forward-facing, shock mitigation seating for six Helm station forward to port Dash spanning full-width forward of cockpit, engine controls and steering to port with Axiom MFD’s mounted centrally, Fusion stereo mounted to starboard side of dash Storage units with countertops to port and starboard sides at aft end of cockpit Built-in fridge below starboard side storage unit with storage drawer above. Storage locker and drawer within the port side storage unit Seating: Ultimate boats custom seating modules Six individual seats mounted on adjustable rails Shoxs X4 shock mitigating seat bases with foot rest bars Blue leather upholstery Canvas Work: Spray Covers – Fitting above side windscreens to port and starboard, black with window panels, removable Aft Cockpit Door – Sheet fitting across aft end of cockpit, roll-up central panel with windows Cushion Covers – For forward and aft external seating Anchoring & Mooring: Bower Anchor – CQR plough anchor on chain and warp rode Electric Windlass – Lewmar low-profile electric windlass, control switch at helm station Mooring Warps – Selection Fenders – Selection Tender: Inflatable Dinghy Outboard – Torqueedo electric outboard General: Single stainless steel bow roller Additional detachable bow roller, extending roller forward for use with mooring 7x Stainless steel, gunwale mounted mooring cleats forward and midships Stainless steel samson posts on port and starboard quarters Stainless steel grab rails along sides and up aft ends of superstructure Steps at forward end of deck up to small foredeck with windlass and central mooring cleat mounted on deck Central section of steps hinging up on gas struts to provide access to anchor and warp locker Double seat with stitched leather upholstery built into forward end of coachroof Seating unit hinging up on gas spring struts providing access to large storage locker, fitted with racks to secure gear inside Walk-around side decks on port and starboard sides of superstructure Aft cockpit spanning full width of boat Bench seating across aft end of cockpit with stitched blue leather upholstery and back rest cushion on removable stainless steel bar. Bench seat hinging upto provide access to fuel distribution manifold and storage space SAFETY EQUIPMENT: 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. Life Saving: Liferaft – 6 person valise (2021) DISCLAIMER 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

Change History

2 events tracked

Spec updated: boat_type (other -> motor)

via MC Yachts

2 hours ago

New listing appeared

via MC Yachts

14 hours ago

Financing Calculator

Financing Calculator

Estimate the true monthly cost of owning the 2021 Ultimate Boats X-Class.

£
15% (£22,493)
10% 50%
6.9%
4.9% 9.9%
Monthly Finance Payment
£1,473
£127,458 over 10 years at 6.9% APR

Monthly Running Costs (estimated)

Mooring / berthing £368
Insurance £187
Maintenance £250
Fuel £292
Running costs subtotal £1,097/mo
True Monthly Cost
£2,570
Finance + running costs combined
Finance 57% Running costs 43%
Total Interest
£49,342
Total Cost (finance)
£199,292

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Boat location
Portsmouth, Hampshire, United Kingdom

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£149,950
Listed by MC Yachts Direct
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Last checked 2 hours ago

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