| Manufacturer |
Glenn L. Martin Company |
Hamburger Flugzeugbau |
| Description |
The Martin 4-0-4 is a pressurized, all-metal, low-wing 40 passenger American airliner built by the Glenn L. |
The Hamburger Flugzeugbau HFB 209 was a postwar design project for a twin-turboprop medium-range transport. |
| ICAO Code |
M404 |
|
| First Flight |
1950-10-21 |
|
| Entry Into service |
1951-01-01 |
|
| Production End |
1953-01-01 |
|
| Designer |
Glenn L. Martin Company |
Hamburger Flugzeugbau |
| Type |
Short/medium range airliner |
|
| Length (m) |
22.5552 |
23.32 |
| Height (m) |
8.5344 |
9.04 |
| Cockpit Crew |
3 |
|
| Max Seating |
40 |
48 |
| Max Speed (km/h) |
502.1153 |
|
| Cruise Speed (km/h) |
450.6163 |
513.0036 |
| Min Speed (km/h) |
130.3569 |
|
| Max Ceiling (m) |
8839.2 |
|
| Rate of Climb (m/s) |
9.6774 |
|
| Capacity Description |
40 passengers |
48 to 54 seats |
| National Origin |
Canada |
Germany |
| Number Built |
103 |
|
| Powerplant Description |
2 × Pratt & Whitney R-2800 Double Wasp-CB16 18-cylinder two-row air-cooled radial engine, 1790 kW (2400 hp) each |
2 × Napier Eland NEl.6 turboprop, 2610 kW (3500 hp) each |
| Primary Users |
Eastern Air Lines, Trans World Airlines |
|
| Status |
|
Design project |
| Wikipedia Article (URL) |
en.wikipedia.org/wiki/Martin_4-0-4 |
en.wikipedia.org/wiki/Hamburger_Flugzeugbau_HFB_209 |
| Flat Wing Span (m) |
28.3464 |
28.55 |
| Flat Wing Area (m²) |
80.2682 |
89.5 |
| Wake Category |
M |
|
| Aircraft Engine |
Pratt & Whitney R-2800 Double Wasp |
Napier Eland |
| Number of Engines |
2 |
2 |