| Manufacturer | Martin |
| Model | Martin 4-0-4 |
| Modification | Martin 4-0-4 |
| Country | USA |
| Years | 1950 |
| Type | Passenger aircraft |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 28.42 m |
| Length | 22.73 m |
| Height | 8.66 m |
| Wing area | 80.27 m2 |
| Zero fuel weight | - |
| Empty weight | 13211 kg |
| Maximum takeoff weight | 20366 kg |
| Normal takeoff weight | - |
| Flight duration | - |
| Engine | 2 Pratt Whitney R-2800 CB-16 |
| Power | 2 x 2400 HP |
| Thrust | - |
| Maximum speed | - |
| Cruising speed | 502 km/h |
| Rate of climb | - |
| Practical range | 3058 km |
| Service ceiling | 8840 m |
| Hovering ceiling | - |
| Crew | 2+1 |
