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Monnet Sonerai I
Great Plains Sonerai I

 

 Monn-Soner1-01

 

The Sonerai I is a mid-wing sport plane, racer, designed and first built in 1971to meet all Professional Race Pilots Association (PRPA) and Formula Vee Racing requirements for 1600cc Volkswagen powered aircraft. Its wings are 2024-T3 aluminum.025" except for the spars which are .040". The wing is composed of two panels that fold along side the fuselage, enabling the Sonerai I to be towed tail first on it's own gear. Stainless steel cherry rivets are used to skin the wing. The fuselage and tail are of standard 4130 chrome moly tubing.
 

 Monn-Soner1-02

 

The Sonerai I uses a minimum of different sizes of tubing to reduce the cost. Cowling is fiberglass, and fuselage and tail surfaces are fabric covered. The fiberglass cowling removes easily to allow complete access to the engine, magneto, tank and instruments. The landing gear is manufactured from 1/2" x 5" 2024T-351 aluminum. The Sonerai I will accept engine displacements from 1600cc through 2180cc.

 

 Monn-SonI-02

 

Price in 1982:  $2,527.

The Sonerai was also marketed as the Great Plains Aircraft Sonerai (1998). The Sonerai I can handle +/- 6 G's with the "S" wing and will do 170 mph flat out with a Great Plains 2180cc engine.

 

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Engine: VW 1600 – 2180cc
Span: 16 ' 8"
Length: 16' 8"
Height: 5 '
Wing area: 75 sq.ft
Empty weight: 200 kg / 440 lb
Useful load: 260 lb
Gross weight: 318 kg / 700 lb
Fuel capacity – std: 11 USG
Design limit at full gross: +/- 6 G
Take off distance: 600 ft
Stall speed: 39 kt / 45 mph / 72 kmh
Landing speed: 54 mph
Cruising speed at 85%: 130 kt / 150 mph / 241 kmh
Vne: 196 kt / 225 mph / 362 kmh
Range w/45 minute res: 300 sm
Rate of climb at gross: 1000 fpm / 5 m/s
Takeoff run 500 ft
Take-off distance (50ft obstacle): 600 ft / 183 m
Landing roll 500 ft
Seats: 1
Undercarriage: tail wheel.
Service ceiling: 14,000 ft.

 

 


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