| Manufacturer |
Travel Air Mfg Co |
Ryszard Bartel |
| Description |
The Travel Air 4000 is an American general-purpose biplane of the 1920s, a member of the family of aircraft that began with the Travel Air Model A. |
The Bartel BM.4 was a Polish biplane primary trainer aircraft used from 1929 to 1939 by the Polish Air Force and Polish civilian aviation, manufactured in the Samolot factory in Poznań. |
| ICAO Code |
TVL4 |
|
| First Flight |
1927-01-01 |
1927-12-20 |
| Entry Into service |
|
1929-01-01 |
| Production End |
|
1932-01-01 |
| Service End |
|
1939-01-01 |
| Designer |
Travel Air Mfg Co |
Ryszard Bartel |
| Type |
|
Primary trainer aircraft |
| Length (m) |
7.3152 |
7.22 |
| Height (m) |
|
2.93 |
| Cockpit Crew |
1 |
2 |
| Max Seating |
2 |
|
| Max Speed (km/h) |
196.34 |
125 |
| Cruise Speed (km/h) |
165.7624 |
110 |
| Min Speed (km/h) |
|
57 |
| Max Ceiling (m) |
3962.4 |
2820 |
| Rate of Climb (m/s) |
3.556 |
1.9 |
| Capacity Description |
2 passengers |
|
| Endurance (h) |
|
3 |
| National Origin |
United States of America |
|
| Number Built |
100 |
75 |
| Powerplant Description |
1 × Wright J-6-5 9-cylinder, air-cooled, radial engine, 123 kW (165 hp) each |
1 × Le Rhône 9C 9-cyl. air-cooled rotary piston engine, 60 kW (80 hp) each |
| Primary Users |
|
Polish Air Force |
| Wikipedia Article (URL) |
en.wikipedia.org/wiki/Travel_Air_4000 |
en.wikipedia.org/wiki/Bartel_BM_4 |
| Flat Wing Span (m) |
10.0584 |
10.175 |
| Flat Wing Area (m²) |
26.849 |
25 |
| Wake Category |
L |
|
| Aircraft Engine |
Wright J65 |
Le Rhône 9C |
| Number of Engines |
1 |
1 |