Advanced Aeromarine Sierra
|National origin||United States|
|First flight||March 1991|
|Number built||1 (1998)|
Design and development
The Sierra was intended as a lightweight and affordable glider with modest performance that could be launched by ultralight aircraft aerotow, auto-tow, winch-launch or bungee launch. It first flew in March 1991.
The aircraft was made from aluminium tube, fabric and composites. Its 42.65 ft (13.0 m) span wing was supported by a lift strut and jury struts. The glide ratio was 25:1 and had a landing roll of 150 ft (46 m). The landing gear was tandem wheels, plus a tail caster. The completion time from the factory kit was rated as 150 hours.
Although very light, with a standard empty weight of 205 lb (93 kg), the Sierra did not qualify under the US FAR 103 Ultralight Vehicles regulations as a hang glider, neither was it foot-launchable. Only one prototype had been reported as completed by December 1998.
- Sierra LS
- Main production version
Specifications (Sierra LS)
- Crew: one
- Length: 21 ft 0 in (6.40 m)
- Wingspan: 42 ft 7.8 in (13.000 m)
- Wing area: 142 sq ft (13.2 m2)
- Aspect ratio: 13:1
- Empty weight: 205 lb (93 kg)
- Gross weight: 455 lb (206 kg)
- Stall speed: 27 mph (43 km/h; 23 kn)
- Maximum glide ratio: 25:1 at 40 mph (64 km/h)
- Wing loading: 3.2 lb/sq ft (16 kg/m2)
Aircraft of comparable role, configuration and era
- Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, page 300. BAI Communications. ISBN 0-9636409-4-1
- Downey, Julia: 1999 Kit Aircraft Directory, Kitplanes, Volume 15, Number 12, December 1998, page 31. Primedia Publications. ISSN 0891-1851
- Federal Aviation Administration (September 2011). "Make / Model Inquiry Results". Retrieved 1 September 2011.