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Chasle YC-12 Tourbillion

The Tourbillion (Whirlwind) is a single seat, amateur-built, light low-wing plane that comes from France.
Prototype Chasle YC-12 Tourbillion F-PMXQ nearing completion at Beynes 1965


Designed by Yves Chasle in 1964, the wooden prototype F-PMXQ first flew on 9 October 1965.
It is available in several models that differ only in their engine size. Most common is the 65-hp Continental. Airframe construction includes wood and fabric wings and a plywood-covered fuselage structure.
Plans no longer available.
prototype with Continental A65 engine
similar to prototype with enlarged tailfin for limited certification
similar to YC-121 but with Continental C90 engine
similar to YC-121 but with Potez 4E-20b engine
Powerplant: 1 × Continental A65, 48 kW (65 hp)
Propeller: 2-bladed EVRA fixed pitch wooden propeller, 1.75 m (5 ft 9 in) diameter
Wingspan: 6.7 m (22 ft 0 in)
Aspect ratio: 6
Airfoil: NACA Srs.7
Length: 5.95 m (19 ft 6 in)
Empty weight: 285 kg (628 lb)
Max takeoff weight: 432 kg (952 lb)
Fuel capacity: 60.5 l (16.0 US gal; 13.3 imp gal)
Maximum speed: 235 km/h (146 mph, 127 kn) at sea level
Cruise speed: 205 km/h (127 mph, 111 kn) at 70% power
Stall speed: 75 km/h (47 mph, 40 kn)
Range: 800 km (500 mi, 430 nmi)
Rate of climb: 4.6 m/s (910 ft/min)
Wing loading: 57.5 kg/sq.m (11.8 lb/sq ft)
Power/mass: 0.112 kW/kg (0.068 hp/lb
Takeoff run 855 ft
Landing roll 900 ft
Range 500 miles
Crew: 1






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