Wassmer WA-40 / WA-4/21 / WA-41 Baladou
In 1955 Société Wassmer opened a design department, its first fully original aircraft was the WA-40 Super Sancy. This was a low winged four/five-seat tourer monoplane with a retractable nosewheel undercarriage. The fuselage was of steel tube construction with fabric covering, while the wings were of wooden construction.
The first prototype flew on 8 June 1959, receiving French certification on 9 June 1960. The WA-40 Super IV flew with the 134-kW (180-hp) 0-360-AlA.
WA-41 Super IV F-BNZF (118)
Some 180 aircraft were produced in three variants (the Directeur basic model, the Commandant du Bord deluxe model and the President IFR model) with different equipment standards.
A revised version, the WA-40A, with swept tailplane, followed in 1963. In 1965 the company introduced a variant with fixed landing gear, and this WA-41 Baladou also had a different engine and simplified systems for lower purchase cost.
The final development of this initial series was the WA 4/21 Prestige in 1967 with the 175-kW (235-hp) IO-540 engine, a variable-pitch propeller and refinements such as an autopilot, blind-flying instrumentation and electrically operated flaps.
WA-421 F-BOBZ (401)
The Cerva CE-43 Guepard is an all-metal derivative of the Wassmer WA-40.
WA-40 Super IV
Original production. Powered by 180 hp Lycoming O-360-A1A engine. Upswept fin. Two prototypes + 50 production aircraft.
WA-40A Super IV
Revised production with swept fin. 180 WA-40 and WA40A built.
Simplified version with fixed undercarriage. 60 built by 1970.
WA 4/21 Prestige
More powerful version of the WA-40A with 250 hp Lycoming IO-540-C4B5 engine, electric flaps and landing gear, lengthened nose, the prototype was fitted with a 235 hp engine, 25 built by 1970.
Alternate designation for the WA 4/21 production aircraft with a 250 hp engine.
Powerplant: 1× Lycoming O-360-A1A, 134 kW (180 hp)
Length: 8.09 m (26 ft 6.5 in)
Wingspan: 10.0 m (32 ft 9.5 in)
Height: 2.86 m (9 ft 5 in)
Wing area: 16.0 sq.m (172 sq.ft)
Empty weight: 740 kg (1,631 lb)
Max takeoff weight: 1,200 kg (2,645 lb)
Never exceed speed: 310 km/h (167 knots, 192 mph)
Maximum speed: 270 km/h (146 knots, 168 mph)
Cruise speed: 225 km/h (122 knots, 140 mph) (econ cruise - 55% power)
Stall speed: 95 km/h (51 knots, 59 mph)
Range: 1,700 km (917 nm, 1,055 mi)
Service ceiling: 5,000 m (16,400 ft)
Rate of climb: 4.6 m/s (905 ft/min)
Capacity: 4 passengers
four/five-seat touring lightplane
Span: 10m (32 ft 9.4 in)
Length: 8.09m (26ft 6.5 in)
Powerplant: 1 x Avco Lycoming O-360-A2A, 134kW (180 hp)
Max TO weight: 1200 kg (2,646 lb)
Max speed: 158 mph at sea level
Operational range: 1,056 miles
WA 4/21 Prestige
Engine: IO-540, 175-kW (235-hp)