Martin 404
Technical Specifications
| First Flight: |
October 21, 1950 |
| Number Built: |
101 were built for commercial use |
| Length: |
74 feet 7 inches |
| Wing Span: |
93 feet 3 inches |
| Height: |
28 feet 5 inches |
| Max Take-Off Wt.: |
44,900 lbs. |
| Max Landing Wt.: |
43,000 lbs. |
| Empty Wt.: |
29,126 lbs. |
| Max Cruising Speed: |
312 mph 271 kts |
| Normal Cruising Speed: |
280 mph 243 kts |
| Approach Speed: |
N/A |
| Landing Speed: |
N/A |
| Stall Speed: |
N/A |
| Service Ceiling: |
29,000 feet |
| Fuel Capacity: |
1370 US gallons |
| Range: |
1900 miles |
| Fuel Type: |
100/130 octane |
| Fuel Consumption: |
200 gph both flight plan burn |
| Engines: |
2 Pratt & Whitney R-2800 CB-16 rated at
2400 HP each |
| Seating: |
44 Passengers |
| Crew: |
2 Pilots and 1 Flight Attendent |
|
Engine Specifications
|
|
R-2800
CB-16
|
| Type: |
18 cylinder air cooled radial |
| Diameter: |
52.8 inches |
| Length: |
81.4 inches |
| Bore: |
5.75 inches |
| Stroke: |
6 inches |
| Displacement: |
2804 cubic inches |
| Compression Ratio: |
6.75 to 1 |
| Dry Weight: |
2390 lbs. |
| Ignition: |
Scintilla DLN-10 low tension |
| Fuel Grade: |
100/130 octane |
| Carburation: |
Stromberg PR-58E5
water injected & supercharged |
|