| Manufacturer |
Northrop Corporation |
Hamburger Flugzeugbau |
| Description |
The Northrop X-21A was an experimental aircraft designed to test wings with laminar flow control. |
The Hamburger Flugzeugbau HFB 209 was a postwar design project for a twin-turboprop medium-range transport. |
| First Flight |
1963-04-18 |
|
| Service End |
1968-01-01 |
|
| Designer |
Northrop Corporation |
Hamburger Flugzeugbau |
| Type |
Experimental aircraft |
|
| Length (m) |
22.94 |
23.32 |
| Height (m) |
7.8 |
9.04 |
| Max Seating |
|
48 |
| Max Speed (km/h) |
896 |
|
| Cruise Speed (km/h) |
|
513.0036 |
| Max Ceiling (m) |
12957 |
|
| Capacity Description |
|
48 to 54 seats |
| National Origin |
|
Germany |
| Number Built |
2 |
|
| Powerplant Description |
2 × General Electric J79-GE-13 turbojets, 41.9 kN thrust each |
2 × Napier Eland NEl.6 turboprop, 2610 kW (3500 hp) each |
| Primary Users |
National Aeronautics and Space Administration (NASA) |
|
| Status |
|
Design project |
| Wikipedia Article (URL) |
en.wikipedia.org/wiki/Northrop_X-21 |
en.wikipedia.org/wiki/Hamburger_Flugzeugbau_HFB_209 |
| Flat Wing Span (m) |
28.51 |
28.55 |
| Flat Wing Area (m²) |
116.17 |
89.5 |
| Aircraft Engine |
General Electric J79 |
Napier Eland |
| Number of Engines |
2 |
2 |