User:JKBodylski/sandbox2
PRANDTL- D
[edit]| PRANDTL-D | |
|---|---|
| |
| PRANDTL-D 3c on bungee during launch | |
| Role | Research UAV |
| National origin | United States |
| Manufacturer | NASA |
| Designer | Albion Bowers |
| First flight | 2009 |
| Produced | 2010-2018 |
Preliminary Research AerodyNamic Design To Lower Drag (PRANDTL-D) is a series of subscale research aircraft designed by Al Bowers at NASA Armstrong Flight Research Center to test applications of a Bell Shaped Lift Distribution (BSLD) based on Ludwig Prandtl's 1933 paper.
Specifications (PRANDTL-D 3c)
[edit]General characteristics
- Wingspan: 25 ft 0 in ([convert: invalid number])
- Empty weight: [convert: invalid number] (12.7 kg)
Performance
- Cruise speed: 21 mph (34 km/h, 18 kn)
Specifications (PRANDTL-D 2)
[edit]
General characteristics
- Wingspan: 12 ft 4 in ([convert: invalid number])
- Wing area: 10.125 sq ft (0.9406 m2)
- Empty weight: [convert: invalid number] (12.7 kg)
Performance
- Cruise speed: 21 mph (34 km/h, 18 kn)