Excalibur Aircraft Excalibur

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Excalibur
Role Ultralight aircraft
National origin United States
Manufacturer Excalibur Aircraft
Produced 1900 (by 2011)

The Excalibur is an American two seats-in-tandem, high wing, pusher configuration ultralight aircraft that is manufactured in kit form for amateur construction, by Excalibur Aircraft of Sebring, Florida.[1][2][3][4][5][6][7]

The Excalibur is available in the US amateur-built and light-sport aircraft categories and in Canada in the amateur-built, BULA and AULA categories. In Europe it qualifies under the Fédération Aéronautique Internationale microlight rules.[7][8]

Design and development[edit]

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 cables with torque tubes. The optional Dacron covering on the Challenger was replaced with Superflite standard aircraft fabric, the fuselage was lengthened to give more backseat room and the nosecone was reduced in size to provide better over-the-nose visibility. The design was also streamlined to reduce drag and round cross-section wing struts were replaced with aerodynamic extrusions. The Challenger's rigid landing gear was replaced with a bungee-suspended system.[1]

Regarding the landing gear improvements reviewer Andre Cliche, author of the Ultralight Aircraft Shopper's Guide, said:

Variants[edit]

Excalibur
Basic model with 50 hp (37 kW) Rotax 503, 64 hp (48 kW) Rotax 582, 70 hp (52 kW) Hirth 3503, 65 hp (48 kW) Hirth 3203 or the 55 hp (41 kW) Hirth 3202 two-stroke engines. 750 completed and flown by the end of 2011.[5][6][9]
Excalibur Four Stroke
Model with HKS 700E 60 hp (45 kW) or 80 hp (60 kW) Jabiru 2200 80 hp (60 kW) four-stroke engines. 400 completed and flown by the end of 2011.[5][6][9]
Excalibur Wide Body (Stretch)
Model with wider fuselage, also called the Excalibur Stretch. 750 completed and flown by the end of 2011.[5][6]

Specifications (Excalibur)[edit]

Data from Kitplanes[4][5] and Excalibur[10]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Length: 20 ft 0 in (6.10 m)
  • Wingspan: 31 ft 6 in (9.60 m)
  • Height: 6 ft 0 in (1.83 m)
  • Wing area: 185 sq ft (17.2 m2)
  • Empty weight: 450 lb (204 kg)
  • Gross weight: 950 lb (431 kg)
  • Fuel capacity: 10 US gal (38 litres)
  • Powerplant: 1 × Rotax 503 twin cylinder, two-stroke aircraft engine, 50 hp (37 kW)

Performance

  • Cruise speed: 80 mph (70 kn; 129 km/h)
  • Stall speed: 33 mph (29 kn; 53 km/h)
  • Range: 290 mi (252 nmi; 467 km)
  • G limits: +6/-4 (ultimate load limits)
  • Rate of climb: 1,200 ft/min (6.1 m/s)

Avionics
none

See also[edit]

Related development
Aircraft of comparable role, configuration and era

References[edit]

  1. ^ a b c d Cliche, Andre: Ultralight Aircraft Shopper's Guide 8th Edition, page B-75. Cybair Limited Publishing, 2001. ISBN 0-9680628-1-4
  2. ^ Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, page 362. BAI Communications. ISBN 0-9636409-4-1
  3. ^ Excalibur Aircraft (n.d.). "Excalibur Experimental Light Sport Aircraft". Retrieved 2010-02-16. 
  4. ^ a b Downey, Julia: 1999 Kit Aircraft Directory, Kitplanes, Volume 15, Number 12, December 1998, page 45. Primedia Publications. ISSN 0891-1851
  5. ^ a b c d e Downey, Julia: 2008 Kit Aircraft Directory, Kitplanes, Volume 24, Number 12, December 2007, page 50. Primedia Publications. ISSN 0891-1851
  6. ^ a b c d Vandermeullen, Richard: 2011 Kit Aircraft Buyer's Guide, Kitplanes, Volume 28, Number 12, December 2011, page 51. Belvoir Publications. ISSN 0891-1851
  7. ^ a b Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 48. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
  8. ^ Transport Canada (January 2010). "Listing of Models Eligible to be Registered as Advanced Ultra-Light Aeroplanes (AULA)". Retrieved 2010-02-16. 
  9. ^ a b Excalibur Aircraft (n.d.). "Engines". Retrieved 2010-02-16. 
  10. ^ Excalibur Aircraft (n.d.). "Specs". Retrieved 2010-02-16. 

External links[edit]

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