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1981 Cobra 850 - 28'

Year 1981
Length 28ft.
Price Pounds £11,500
Type: Pre-owned
Location Burnham on Crouch, United Kingdom
Hull Material Fiberglass/GRP
Engine type Single
Contact Information
Builder: Cobra Yachts
Designer: David Feltham
Beam: 9 ft 6 in
Max Draft: 3 ft 6 in
Draft Drive Up: Direct Drive
Displacement: 3515 kgs
Engine(s): Bukh
Engine Model: DV20
Engine(s) HP: 20 HP
Cruising Speed: 5 knots
Fuel: (50 Liters)
Water: (120 Liters)
Hull Shape: Monohull
Keel Type: Twin Keel

Additional Specs, Equipment and Information:

Boat Name
Builder: Cobra Yachts
Designer: David Feltham
Keel: Twin Keel
Hull Shape: Monohull
LOA: 28 ft 6 in
Beam: 9 ft 6 in
LWL: 22 ft 0 in
Minimum Draft: 3 ft 6 in
Maximum Draft: 3 ft 6 in
Displacement: 3515 kgs
Ballast: 1587 kgs
Total Power: 20 HP
Engine 1:
Engine Brand: Bukh
Engine Model: DV20
Engine Type: Inboard
Engine/Fuel Type: Diesel
Propeller: 3 blade propeller
Drive Type: Direct Drive
Engine Power: 20 HP
Cruising Speed: 5 knots
Maximum Speed: 5 knots
Fresh Water Tanks: (120 Liters)
Fuel Tanks: (50 Liters)


The accommodation offers up to 5 berths in 2 cabins with approx. 5'10" maximum headroom. Forepeak with V berth,infill to create a double berth, storage areas and hatch to foredeck. Heads compartment to port with marine toilet, wash basin with manually pumped cold water supply and storage, with hanging locker opposite. Saloon with dinette to port which can convert to a double berth and linear galley opposite equipped with a Plastimo Neptune 2-burner gas cooker with oven and grill, sink with manually pumped cold water supply and storage areas. Chart table and quarter berth aft to starboard. Original check and vinyl upholstery and practical, well finished woodwork with lots of built in stowage, all in very good condition for age.

Mechanical Systems

Located abaft companionway, Bukh DV20 20hp 2-cylinder diesel engine. Seawater cooled. Single lever Morse controls with electric start. Shaft drive to fixed 3-bladed propeller.

The engine appears to be in very good cosmetic condition, has been regularly serviced and winterised (last serviced November 2013 and currently winterised) and in 2002 the gearbox had new engine seals installed.

Electrical Systems

2 x 12v Batteries (new 2011) charged via engine alternator. Interior lighting. 12v Distribution panel.

Sails & Spars

Masthead rigged sloop. Anodised aluminium mast and boom. Stainless steel standing rigging (new standing rigging 2005). Terylene running rigging. Slab reefing mainsail with lazyjacks (new 2013). Headsail furling system. 2 x Lewmar 8 sheet winches. 2 x Gibb halyard winches on mast.

  • Mainsail - 1990 - Crusader - fair
  • Furling genoa - 2008 - very good
  • Working jib - 1980 - Crusader - very good
  • Cruising chute with snuffer - 1980 - very good

Deck Equipment
  • Bruce anchor with chain and warp
  • Stainless steel pulpit, pushpit and alloy stanchions
  • Stainless steel fixed bathing ladder
  • Sprayhood (needs replacing but very good frame) and main sail cover 
  • 6 x Fenders with socks
  • Mooring warps
  • Boat hook

Navigation Equipment
  • 2 x Plastimo bulkhead compasses
  • Shoreline SX25 VHF radio
  • SX-Micro 90 handheld VHF radio
  • Stowe echo sounder
  • Stowe speed/log
  • TackTick wind instrument (new 2006 with new transducer 2009)
  • Lowrance GPS colour chart plotter with 2011 chart
  • Garmin GPS navigation system
  • Stereo radio/cassette
  • Navigation lights

Safety Equipment
  • Fire extinguishers (may require servicing)
  • Lifebuoy
  • 2 x Lifejackets (may require servicing)
  • Jackstays
  • Fog horn
  • Firdell Blipper radar reflector on mast (new 2008)
  • Manual bilge pump


Cobra 850 moulded by Cobra Yachts in 1980 to a David Feltham design. Blue GRP hull (professionally repainted in 2008), superstructure and decks with moulded non-slip surfaces. The hull is believed to have been epoxy coated beneath the waterline from new. Twin bilge keels with encapsulated ballast. Tiller steering with extension to skeg hung rudder. Self draining cockpit. Teak rubbing strake. 

Additional Comments

'Rahia' has had only three owners from new and appears to be in very good original condition. Her first owner purchased her for his retirement and sailed her lightly in the West Country before selling her in 1993. During her second ownership she moved to the East coast and has been here ever since, being lightly sailed by both the second and current owner and wintering ashore each year.

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The company normally acts as broker for the vendor who unless otherwise stated is not selling in the course of a business. Whilst every care has been taken in the preparation of these particulars the correctness is not guaranteed and they are intended as a guide only and do not constitute a part of any contract. A prospective buyer is strongly advised to check these particulars and where appropriate and at his own 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 on our part.

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