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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.
C-3603-1 - main production version (148 built, at least 60 later converted to target tugs) C-3603-1 TR - trainer version (2 built) EKW C-3604 - Post-war development using Saurer YS-2 engine (13 built) F+W C-3605 - Turboprop version with Lycoming T53 engine (24 converted from C-3603-1) EKW D-3800 - licence built M.S.406H fighter
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.
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 3203 was developed as a replacement for the Hirth 2706 and as a competitor to the 64 hp (48 kW) Rotax 582.It replaced the 2706 in the Hirth line in May 2002. The engine is similar to the Rotax powerplant in being a two-cylinder in-line engine, with dual capacitor discharge ignition, although it is air-cooled, compared to the 582's liquid cooling.
The Excalibur gives U.S. brigade commanders a precision weapon that is locally available, regardless of weather conditions (unlike bombs dropped from aircraft). Because the M982 is so accurate, the risks of friendly-fire casualties and collateral damage are no longer deterrents to using gun artillery in urban environments, and the Excalibur is ...
1 In service 1910–1914 A Vlaicu II: Romania Monoplane 1 Crashed in 1913 A Vlaicu III: Romania Monoplane 1 Captured by Germany in 1916 Albatros B.I: Germany Reconnaissance: 1 Purchased in 1913, retired in 1917 Aviatik C.I: Germany Reconnaissance 1 Purchased in 1916, retired in 1917 Blériot XI: France Monoplane trainer ~28 Retired in 1919 ...