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The Excalibur was designed as "clone" [1] of the Quad City Challenger II aircraft. The company took the basic Challenger design and incorporated many changes, including mounting the engine upright allowing larger propellers and the Rotax gearbox to be mounted, lengthening the tailboom and enlarging the tail vertical surface to increase stability, shortening the ailerons and replacing control ...
The new design differed so much from the original Excalibur, that a different model designation was needed. It was first given the temporary designation L-104, then it was later officially designated the Model 49 or "Excalibur A". In time, the Model 49 would become a completely different aircraft from the original Model 44.
Challenger I (Challenger UL) Single seat, 31.5 ft (9.6 m) wingspan gives lower stall speed. Can be fitted with a variety of engines. Qualifies as a US "Experimental - Amateur-Built", Light sport aircraft or with the 22 hp (16 kW) Hirth F-33 engine as a US FAR 103 Ultralight Vehicle, 800 reported completed and flown by the fall of 2011.
During World War I, Romania acquired 322 aircraft from France and ex-RNAS aircraft from Great Britain including Nieuport 11 and 17 single seat fighters and Morane-Saulnier LA and Nieuport 12 two seat fighters, Caudron G.3, Henry Farman HF.20, Farman MF.11, and Farman F.40 & 46 artillery observation and reconnaissance aircraft, Caudron G.4 ...
One of the engineers designing IAR aircraft in the early 1930s was Elie Carafoli. During 1930, IAR's first original aircraft, the IAR CV 11, performed its maiden flight; it functioned as an experimental design only. [4] One of its earliest aircraft to reach quantity production was the IAR 14, a trainer aircraft derived from the IAR 12 prototype ...
The Sikorsky VS-44 was a large four-engined flying boat built in the United States in the early 1940s by Sikorsky Aircraft. Based on the XPBS-1 patrol bomber, the VS-44 was designed primarily for the transatlantic passenger market, with a capacity of 40+ passengers. Three units were produced: Excalibur, Excambian, and Exeter, plus two XPBS-1 ...
The SA26 Merlin is a pressurized Excalibur fitted with a different Lycoming TIGO-540 6-cylinder geared piston engine. The TIGO 540 was used despite the fact that one of the reasons the IO-720 was used in the Excalibur was that the Queen Air series' IGSO-480 and IGSO-540 engines from the same manufacturer were so troublesome.
Lublin R-XIIID Poland: Trainer/air ambulance 27 airplanes Potez 62: France: Airliner 1 airplane Assigned to LARES PWS-24: Poland: Airliner 1 airplane Crashed in 1940 PWS-26: Poland: Trainer 46 airplanes Retired in 1946 PZL.5: Poland: Trainer 1 airplane Retired in 1940 PZL P.7a: Poland: Fighter 14 airplanes PZL P.11a/c Poland: Fighter 10 P.11a