The Wassmer WA-40 Super 4 Sancy is a French single-engined light aircraft of the 1960s and 70s. A single-engined low-winged monoplane with retractable nosewheel undercarriage, variants include the more powerful WA 4/21 Prestige and the WA-41 Baladou with a fixed undercarriage.
In 1955, Société Wassmer, which was formed in 1905 as an aircraft repair organisation, opened a design department, subsequently building over 300 Jodel aircraft under license before producing its first fully original aircraft, the WA-40 Super Sancy. This was a low-winged 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.[2]
On the 53rd production aircraft (1963), a swept vertical fin and rudder were incorporated (designated WA.40A; first flying in January 1963 and receiving French certification in March 1963); all subsequent units produced continued the swept design.
WA.40A Super IV in 1963 fitted with retractable undercarriage.
In 1965 the WA.41, with fixed landing gear was introduced, named Baladou. In March 1967 the Super 4/21 Prestige, powered by a 235 hp (175 kW) Lycoming O-540 engine. The 4/21 used a McCauley variable-pitch propeller, autopilot, electric flaps and IFR instrumentation.[1]
An all-metal derivative design, the CE-43 Guépard (Cheetah) was produced by CERVA, a production company which Wassmer and Siren SA formed. It used the same engine as the Prestige (which by 1971 had been upgraded to a 250 hp Lycoming IO-540).
Wassmer suffered financial difficulty in 1977, and became insolvent in September 1977. By that time the Guépard offered an optional sixth seat, and designers were developing two further variants, the CE.44 Cougar and the CE.45 Léopard. However, due to the liquidation, those developments were not finalized, and no further aircraft were produced after September 1977.[1]
Variantsedit
WA-40 Super IV
Original production. Powered by 180 hp Lycoming O-360-A1A engine. Upswept fin. Two prototypes + 50 production aircraft.[2]
WA-40A Super IV
Revised production with swept fin. 180 WA-40 and WA40A built.[3]
WA-41 Baladou
Simplified version with fixed undercarriage. 60 built by 1970.[3]
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.[3]
WA-41-250
Alternate designation for the WA 4/21 production aircraft with a 250 hp engine.
CERVA CE-43 'Guépard'
derived from the WA4/21 the CE-43 was produced by CERVA
CERVA CE-44 'Couguar'
derived from CE-43 'Guépard'
CERVA CE-45 'Leopard'
derived from CE-43 'Guépard'
Specifications (WA-40A)edit
3-view line drawing of the Wassmer WA-40
Data from Jane's All the World's Aircraft 1969–70[4]
Mondey, David, ed. (1981). Encyclopedia of The World's Commercial and Private Aircraft. New York: Crescent Books.
Taylor, John W. R., ed. (1969). Jane's All The World's Aircraft 1969–70. London: Sampson Low.
Taylor, John W. R., ed. (1971). Jane's All The World's Aircraft 1971-72. London: Sampson Low. ISBN0-354-00094-2.
April 09, 2024
wassmer, super, sancy, french, single, engined, light, aircraft, 1960s, single, engined, winged, monoplane, with, retractable, nosewheel, undercarriage, variants, include, more, powerful, prestige, baladou, with, fixed, undercarriage, 40wassmer, super, baladou. The Wassmer WA 40 Super 4 Sancy is a French single engined light aircraft of the 1960s and 70s A single engined low winged monoplane with retractable nosewheel undercarriage variants include the more powerful WA 4 21 Prestige and the WA 41 Baladou with a fixed undercarriage WA 40Wassmer WA 41 Super Baladou at Thruxton Aerodrome Wiltshire in 1967Role Light AircraftNational origin FranceManufacturer WassmerFirst flight 8 June 1959Produced 1961 1977 1 Contents 1 Design and development 2 Variants 3 Specifications WA 40A 4 References 4 1 SourcesDesign and development editIn 1955 Societe Wassmer which was formed in 1905 as an aircraft repair organisation opened a design department subsequently building over 300 Jodel aircraft under license before producing its first fully original aircraft the WA 40 Super Sancy This was a low winged 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 2 On the 53rd production aircraft 1963 a swept vertical fin and rudder were incorporated designated WA 40A first flying in January 1963 and receiving French certification in March 1963 all subsequent units produced continued the swept design nbsp WA 40A Super IV in 1963 fitted with retractable undercarriage In 1965 the WA 41 with fixed landing gear was introduced named Baladou In March 1967 the Super 4 21 Prestige powered by a 235 hp 175 kW Lycoming O 540 engine The 4 21 used a McCauley variable pitch propeller autopilot electric flaps and IFR instrumentation 1 An all metal derivative design the CE 43 Guepard Cheetah was produced by CERVA a production company which Wassmer and Siren SA formed It used the same engine as the Prestige which by 1971 had been upgraded to a 250 hp Lycoming IO 540 Wassmer suffered financial difficulty in 1977 and became insolvent in September 1977 By that time the Guepard offered an optional sixth seat and designers were developing two further variants the CE 44 Cougar and the CE 45 Leopard However due to the liquidation those developments were not finalized and no further aircraft were produced after September 1977 1 Variants editWA 40 Super IV Original production Powered by 180 hp Lycoming O 360 A1A engine Upswept fin Two prototypes 50 production aircraft 2 WA 40A Super IV Revised production with swept fin 180 WA 40 and WA40A built 3 WA 41 Baladou Simplified version with fixed undercarriage 60 built by 1970 3 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 3 WA 41 250 Alternate designation for the WA 4 21 production aircraft with a 250 hp engine CERVA CE 43 Guepard derived from the WA4 21 the CE 43 was produced by CERVA CERVA CE 44 Couguar derived from CE 43 Guepard CERVA CE 45 Leopard derived from CE 43 Guepard Specifications WA 40A edit nbsp 3 view line drawing of the Wassmer WA 40Data from Jane s All the World s Aircraft 1969 70 4 General characteristicsCrew 1 Capacity 3 4 passengers Length 8 09 m 26 ft 7 in Wingspan 10 00 m 32 ft 10 in Height 2 86 m 9 ft 5 in over tail Wing area 16 0 m2 172 sq ft Aspect ratio 6 2 1 Airfoil NACA 63 618 Empty weight 740 kg 1 631 lb Max takeoff weight 1 200 kg 2 646 lb Fuel capacity 220 L 48 imp gal 58 US gal Powerplant 1 Lycoming O 360 A1A 4 cylinder air cooled horizontally opposed 130 kW 180 hp Propellers 2 bladed McCauley 2A36C14 78KM4 constant speed propeller 1 88 m 6 ft 2 in diameterPerformance Maximum speed 270 km h 170 mph 150 kn at sea level Cruise speed 225 km h 140 mph 121 kn econ cruise 55 power Stall speed 95 km h 59 mph 51 kn flaps down Never exceed speed 310 km h 190 mph 170 kn Range 1 700 km 1 100 mi 920 nmi Service ceiling 5 000 m 16 000 ft Rate of climb 4 60 m s 905 ft min Takeoff run to 15 m 50 ft 530 m 1 740 ft Landing run from 15 m 50 ft 400 m 1 300 ft References edit nbsp Wikimedia Commons has media related to Wassmer WA 41 a b c Mondey 1981 p 245 a b Taylor 1969 p 85 a b c Taylor 1971 p 81 Taylor 1969 pp 85 86 Sources edit Mondey David ed 1981 Encyclopedia of The World s Commercial and Private Aircraft New York Crescent Books Taylor John W R ed 1969 Jane s All The World s Aircraft 1969 70 London Sampson Low Taylor John W R ed 1971 Jane s All The World s Aircraft 1971 72 London Sampson Low ISBN 0 354 00094 2 Retrieved from https en wikipedia org w index php title Wassmer WA 40 amp oldid 1162550927, wikipedia, wiki, book, books, library,
