Заядлый чемпион
| Заядлый чемпион | |
|---|---|
| Роль | Сверхлегкий самолет |
| Национальное происхождение | Соединенные Штаты |
| Производитель | Заядлый самолет |
| Дизайнер | Дин Уилсон |
| Первый полет | 1998 |
| Введение | 1998 |
| Статус | Комплекты больше не доступны после ноября 2003 г. |
| Разработано на основе | Авид Марк IV |
Avid Champion — американский одноместный с высоким расположением крыла сверхлегкий самолет , который производился начиная с 1998 года в виде комплекта компанией Avid Aircraft из Колдуэлла, штат Айдахо , позже — Энниса, штат Монтана . [ 1 ] [ 2 ] [ 3 ]
Avid Aircraft прекратила свою деятельность в ноябре 2003 года, и комплекты для самолетов больше не доступны. [ 4 ]
Разработка
[ редактировать ]Champion был создан путем уменьшения размера Avid Mark IV и сужения более широкого фюзеляжа до одноместной конструкции, предназначенной для соответствия США FAR 103 категории сверхлегких транспортных средств . [ 1 ] [ 5 ]
Конструкция представляет собой традиционную конфигурацию трактора с конструкцией из труб и авиационной ткани . В сварном на заводе фюзеляже используются трубы из хромомолибденовой стали 4130. Алюминиевые лонжероны крыла предварительно просверлены и вытянуты для поддержки готовых нервюр из березовой фанеры, покрытых легированной тканью Dacron . Кабину обычно оставляют открытой. [ 1 ] [ 3 ] [ 5 ]
The main landing gear is bungee-suspended and includes a steerable tailwheel. Like other Avid designs, the wing has an under-cambered airfoil, Junkers style ailerons and scalloped trailing edges. The wing can be folded for storage and the aircraft can be towed on its wheels behind a car. The wing folding mechanism does not include automatic connecting ailerons. The cockpit will accommodate a pilot up to 6.5 ft (2.0 m) in height and 300 lb (136 kg) in weight. Two door options were originally available, a Piper J-3 Cub-style horizontally split door or an overhead-hinged door.[1][3][5]
The Champion only meets the US FAR 103 ultralight vehicle category maximum empty weight limit of 254 lb (115 kg), with the lightest of single cylinder, two-stroke engines installed, such as the 28 hp (21 kW) Rotax 277 and the removal of the cowling, brakes, doors and most of the instruments. When the kit was available, the company did not provide an engine for it, leaving the choice of engines and compliance with FAR 103 restrictions up to the owner. The standard empty weight with the 40 hp (30 kW) Rotax 447 powerplant was 284 lb (129 kg). The aircraft qualifies as an amateur-built in many countries including the US and Canada.[1][5]
Building time to complete the kit was reported by the company to be 160 hours. When the aircraft was introduced in 1998, the kit cost was US$8995, without an engine. Complete airframes, also without an engine, were available for US$12,995.[2]
Operational history
[edit]Andre Cliche's flight review of the Champion describes it as "light and responsive" and "agile", but cautions that the Junkers full-span ailerons produce high roll rates and high adverse yaw. He also indicated that "the overall responsiveness and taildragger reactions might tax beginners' capabilities."[1] Ultralight reviewer Dan Johnson concurred.[5]
Jim Bethea of UltraFlight magazine said: "The Champion is arguably the best fixed-wing ultralight available and perhaps the most overlooked."[3]
With the Rotax 447 engine, the aircraft can take-off in under 100 ft (30 m), as one owner explained: "You'd better be ready when you advance the throttle because the plane will jump off the ground within the next three seconds!" Landings in crosswinds have been described as "easy with a forward slip and touchdown on one main wheel". A full rudder slip will produce a descent rate of 2000 feet per minute (10 m/s).[3]
Because the choice of engine installed was left up to the builder, a variety of engines has been used, including the Rotax 277, 447 and the 50 hp (37 kW) Rotax 503.[3]
Specifications (Champion with Rotax 277)
[edit]Data from Cliche & KitPlanes[1][2]
General characteristics
- Crew: one
- Capacity: 340 lb (154 kg); no passengers
- Length: 17 ft 7 in (5.37 m)
- Wingspan: 26 ft 10 in (8.17 m)
- Height: 6 ft 0 in (1.83 m)
- Wing area: 114.5 sq ft (10.65 m2)
- Empty weight: 254 lb (115 kg)
- Max takeoff weight: 594 lb (269 kg)
- Powerplant: 1 × Rotax 277 , 28 hp (21 kW)
Performance
- Maximum speed: 65 mph (105 km/h, 56 kn)
- Cruise speed: 63 mph (102 km/h, 55 kn)
- Stall speed: 26 mph (42 km/h, 23 kn)
- Range: 104 mi (168 km, 90 nmi)
- Service ceiling: 9,000 ft (2,745 m)
- Rate of climb: 700 ft/min (3.6 m/s)
- Wing loading: 5.19 lb/sq ft (25.26 kg/m2)
- Power/mass: 21.21 lb/hp (0.078 kW/kg)
See also
[edit]Aircraft of comparable role, configuration, and era
- Aero-Works Aerolite 103
- Beaujon Mach .07
- Beaujon Enduro
- Birdman WT-11 Chinook
- Dart Skycycle
- Fisher FP-202 Koala
- Fisher FP-505 Skeeter
- Fisher FP-606 Sky Baby
- Freebird I
- ISON Airbike
- Skystar Kitfox Lite
- Spectrum RX-28 Beaver
- Wood Sky Pup
References
[edit]- ^ Jump up to: a b c d e f g Cliche, Andre: Ultralight Aircraft Shopper's Guide 8th Edition, page B-12. Cybair Limited Publishing, 2001. ISBN 0-9680628-1-4
- ^ Jump up to: a b c Downey, Julia: 1999 Kit Aircraft Directory, Kitplanes, Volume 15, Number 12, December 1998, page 38. Primedia Publications. ISSN 0891-1851
- ^ Jump up to: a b c d e f Bethea, Jim (2007). "Avid Aviates Again". Archived from the original on August 5, 2009. Retrieved September 26, 2009.
- ^ Niles, Russ (November 2003). "On the Fly". Retrieved September 26, 2009.
- ^ Jump up to: a b c d e Johnson, Dan: "Champion Ultralight", January 10, 2004, Light Sport and Ultralight Flying, retrieved from the author's website September 1, 2023