| Type | Aircraft | |
| Company | Glenn L. Martin Company | |
| Scheme | Monoplane Low wing | |
| Geometry | ||
|---|---|---|
| Length (m) |
1.9
21.7
88.7
|
|
| Height (m) |
0.6
8.7
50.1
|
|
| Wings | ||
| Wing area (m2) |
1.1
80.3
925
|
|
| Wingspan (Beam) (m) |
0.1
28.4
95
|
|
| Weights | ||
| Empty weight (kg) |
8
11,378.8
276,800
|
|
| Max. takeoff weight (Gross weight) (kg) |
154
18,098.3
575,000
|
|
| Capacity | ||
| Crew (per.) |
1
2
112
|
|
| Speeds | ||
| Max. Speed (km/h) |
25
311
28,165
|
at 4300 m |
| Сruise Speed (km/h) |
52
286
3,087
|
at 3700 m |
| Stall Speed (km/h) |
40
122.3
257.7
|
|
| Fuel | ||
| Fuel Capacity (l) |
23
5,110
320,000
|
|
| Power | ||
| Total Power (hp) |
0.4
3,600
60,000
|
2 powerplants 1800 hp each |
| Performance | ||
| Service ceiling (m) |
0.6
10,058
161,544
|
|
| Range (Ferry range) (km) |
4
1,022
40,700
|
36 passengers, baggage and 450 kg cargo, reserves for 320 km plus 45 minutes |
| Dynamic Performance | ||
| Rate of climb (m/min) |
1.9
660
36,000
|
|
| Propellers | ||
| Propellers (qt) |
1
2
8
|
|
| Prop diameter (m) |
1.8
4.0
5.8
|
|
| Prop blade number (qt) |
1
3
8
|
|
| Stat | ||
| Number built (qt) |
0
47
43,000
|
|
| Introduction | 1946 | |
| First flight | 22.11.1946 | |
| Stop production | 1975 | |
