| Manufacturer |
Bird Wing Commercial Aircraft Co. |
Akaflieg Stuttgart |
| Description |
The Bird Wing or later, Bird Wing Imperial was a light sport biplane of the 1920s and 1930s. |
The Akaflieg Stuttgart fs28, nicknamed Avispa (Spanish: Wasp) is a single engine, twin boom pusher configuration light sports and utility aircraft designed at the University of Stuttgart in West Germany in the 1970s. |
| First Flight |
1927-07-15 |
1972-12-20 |
| Entry Into service |
1927-01-01 |
|
| Designer |
R. T. McCrum |
Akaflieg Stuttgart |
| Length (m) |
7.0104 |
7.2 |
| Height (m) |
2.4384 |
|
| Cockpit Crew |
1 |
|
| Max Seating |
2 |
|
| Max Speed (km/h) |
144.841 |
270 |
| Cruise Speed (km/h) |
120.7008 |
250 |
| Max Ceiling (m) |
3048 |
|
| Rate of Climb (m/s) |
2.3368 |
|
| Capacity Description |
2 pax |
|
| National Origin |
United States of America |
West Germany |
| Number Built |
6 |
1 |
| Powerplant Description |
1 × Curtiss OX-5 V-8 water-cooled piston engine, 67 kW (90 hp) each |
1 × Lycoming O-235-E2A air-cooled flat four, 86 kW (115 hp) each |
| Status |
Out of business 1931 |
|
| Wikipedia Article (URL) |
en.wikipedia.org/wiki/Bird_Wing_Imperial |
en.wikipedia.org/wiki/Akaflieg_Stuttgart_fs28 |
| Flat Wing Span (m) |
9.4488 |
9.4 |
| Flat Wing Area (m²) |
28.1961 |
|
| Flat Wing Aspect Ratio |
|
7 |
| Aircraft Engine |
Curtiss OX-5 |
Lycoming O-235 |
| Number of Engines |
1 |
1 |