Rutan Solitaire

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Solitaire
Rutan 77 Solitaire N142SD.jpg
Role Kit-built motor glider
National origin United States
Manufacturer Rutan Aircraft Factory
Designer Burt Rutan
First flight1982
Introduction1982
StatusProduction completed

The Rutan Model 77 Solitaire is an American, single seat, canard, mid-wing motor glider that was developed by Burt Rutan in response to the 1982 Sailplane Homebuilders Association Design Contest for a homebuilt glider. It first flew in 1982. [1] The Solitaire was declared the winner of the contest and its unusual layout attracted a great deal of attention. For a time in the 1980s the aircraft was available as plans and as a kit. [2] [3]

Contents

Design and development

Like many Rutan designs, the Solitaire uses a canard layout, with a lifting foreplane with elevators for pitch control at the nose, and a rudder at the rear of a tail boom. The pilot sits under a bubble canopy and the electro-hydraulically retractable gasoline engine occupies the space between the pilot's feet and the canard. The aircraft is constructed from fiberglass on Nomex honeycomb and urethane foam. [2] [3]

The 41.75 ft (12.7 m) wing has a built-in mid-span twist to offset the effects of the canard's downwash, with the inboard 7.4 ft (2.3 m) having 2 degrees less twist than the outboard portion of the wing. The wing is equipped with very effective trailing edge spoilers, consisting of a flap that deploys down while also protruding its leading edge upward into the airflow. [2] [3]

The canard configuration is designed so that the forward surface stalls before the main wing, making the aircraft unstallable, and also unspinnable. This does not mean, however, that the aircraft cannot be maneuvered into a flight regime where a high rate of descent is achieved. [2] [3]

When it was in production, the kit included all the hardware to assemble the prefabricated fiberglass parts. The fuselage halves came with Nomex honeycomb cores and a special film adhesive to bond the halves together. The main wing spars supplied used S-glass roving spar caps that had been molded in metal molds. The kits also included many molded parts, including the seat pan, canopy pre-mounted in its frame, turtledeck, fuselage bulkheads, wing root fairings, wheel fairings, wingtips and the foam cores used in the wings and the canard. [4]

The initial engine was the 22 hp (16 kW) Zenoah G-25, but this was changed to a Robin engine and then later the 20 hp (15 kW) Cuyuna 215. The KFM 107e 22 hp (16 kW) engine has also been used. [4] [5]

Operational history

Within two months of the aircraft's introduction in 1982, 50 to 60 sets of plans had been sold. In March 2011 there were seven Solitaires registered in the United States, including one in the EAA AirVenture Museum. [3] [6]

Aircraft on display

Specifications (Solitaire)

Data from Sailplane Directory, Soaring and EAA [2] [3] [4]

General characteristics

Performance

See also

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References

  1. ↑ "J2mcL Planeurs - Fiche planeur n°". www.j2mcl-planeurs.net. Retrieved May 21, 2022.
  2. 1 2 3 4 5 Activate Media (2006). "Solitaire Rutan". Archived from the original on July 15, 2011. Retrieved March 14, 2011.
  3. 1 2 3 4 5 6 Said, Bob: 1983 Sailplane Directory, Soaring Magazine , page 126. Soaring Society of America, November 1983. USPS 499-920
  4. 1 2 3 4 Experimental Aircraft Association (2011). "Rutan-Matheny Solitaire – N142SD" . Retrieved March 14, 2011.
  5. ↑ Experimental Aircraft Association (2011). "Rutan-Matheny Solitaire – N142SD Specifications" . Retrieved March 14, 2011.
  6. ↑ Federal Aviation Administration (March 2011). "Make / Model Inquiry Results". Archived from the original on July 21, 2011. Retrieved March 14, 2011.
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