| Manufacturer | North American |
| Model | B-21 |
| Modification | ХВ-21 |
| Country | USA |
| Years | 1937 |
| Type | Bomber |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 29.00 m |
| Length | 18.82 m |
| Height | 4.50 m |
| Wing area | 94.50 m2 |
| Zero fuel weight | - |
| Empty weight | 12600 kg |
| Maximum takeoff weight | - |
| Normal takeoff weight | 18144 kg |
| Flight duration | - |
| Engine | 2 Pratt Whitney R-2180-1 |
| Power | 2 x 1200 HP |
| Thrust | - |
| Maximum speed | 355 km/h |
| Cruising speed | 306 km/h |
| Rate of climb | - |
| Practical range | 3154 km |
| Service ceiling | 7620 m |
| Hovering ceiling | - |
| Crew | - |
