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