|Designer||Yamaha Design Team|
|Builder(s)||Yamaha Motor Company|
|Boat weight||4,343 lb (1,970 kg)|
|Draft||5.09 ft (1.55 m)|
|LOA||26.19 ft (7.98 m)|
|LWL||21.00 ft (6.40 m)|
|Beam||9.19 ft (2.80 m)|
|Engine type||Yanmar 1GM 7.5 hp (6 kW) diesel engine|
|Keel/board type||fin keel|
|Ballast||1,433 lb (650 kg)|
|Rudder(s)||internally-mounted spade-type rudder|
|Rig type||Bermuda rig|
|I (foretriangle height)||28.54 ft (8.70 m)|
|J (foretriangle base)||8.69 ft (2.65 m)|
|P (mainsail luff)||29.86 ft (9.10 m)|
|E (mainsail foot)||11.15 ft (3.40 m)|
|Sailplan||Fractional rigged sloop|
|Mainsail area||166.47 sq ft (15.466 m2)|
|Jib/genoa area||124.01 sq ft (11.521 m2)|
|Total sail area||290.48 sq ft (26.986 m2)|
It is a recreational keelboat, built predominantly of fiberglass, with aluminum spars. It has a fractional sloop rig, a raked stem, a raised and squared-off reverse transom with an integral swimming ladder, an internally mounted spade-type rudder controlled by a tiller and a fixed fin keel. It displaces 4,343 lb (1,970 kg) and carries 1,433 lb (650 kg) of ballast.
The boat has a draft of 5.09 ft (1.55 m) with the standard keel fitted.
The boat is fitted with a Japanese Yanmar 1GM diesel engine of 7.5 hp (6 kW). The fuel tank holds 7 U.S. gallons (26 L; 5.8 imp gal) and the fresh water tank has a capacity of 18 U.S. gallons (68 L; 15 imp gal).
The boat's galley is located on the port side of the cabin and includes a single-burner stove that slides under the port quarter berth. The head has a privacy door and is located forward, just aft of the bow "V"-berth. Additional sleeping space is provided by two quarter berths, although the entire cabin can be used for sleeping space, using the seat-back cushions. A small table can be fitted on the starboard side and can be stowed when not in use.
The cockpit has two genoa winches, two spinnaker winches and a two more halyard winches on the cabin top. The mainsheet traveler is in the centre of the large cockpit. There are recessed genoa tracks inboard. A spinnaker was provided as factory standard equipment.
The boat was subject to a major design update, during production in 1982.
In a review Richard Sherwood wrote, "Many aspects of the Yamaha 26 are unusual, and it almost appears that the designers decided to throw out all traditional ideas and design for function only."
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- Browning, Randy (2019). "Yamaha 26 sailboat specifications and details". sailboatdata.com. Retrieved 4 March 2019.
- Sherwood, Richard M.: A Field Guide to Sailboats of North America, Second Edition, pages 178-179. Houghton Mifflin Company, 1994. ISBN 0-395-65239-1
- Browning, Randy (2019). "Yamaha". sailboatdata.com. Retrieved 4 March 2019.
- InterVisionSoft LLC (2019). "Sailboat Specifications for Yamaha 26". Sailing Joy. Retrieved 4 March 2019.