| Manufacturer |
Glenn L. Martin Company |
Showa Aircraft Industry |
| Description |
The Martin B-57 Canberra is an American-built, twin-engined tactical bomber and reconnaissance aircraft that entered service with the United States Air Force (USAF) in 1953. |
The Shōwa L2D and Nakajima L2D, given the designations Shōwa Navy Type 0 Transport and Nakajima Navy Type 0 Transport(零式輸送機), were license-built versions of the Douglas DC-3. |
| First Flight |
1953-07-20 |
1939-10-01 |
| Entry Into service |
1954-01-01 |
1939-01-01 |
| Service End |
1983-01-01 |
|
| Designer |
Glenn L. Martin Company |
Showa Aircraft Industry |
| Type |
Tactical bomber |
|
| Length (m) |
20 |
19.507 |
| Height (m) |
4.52 |
7.46 |
| Cockpit Crew |
2 |
3 |
| Max Seating |
|
21 |
| Max Speed (km/h) |
960 |
393 |
| Cruise Speed (km/h) |
765 |
241 |
| Min Speed (km/h) |
200 |
|
| Max Ceiling (m) |
13745 |
10500 |
| Rate of Climb (m/s) |
31.4 |
|
| Armament |
4× 20 mm (0.787 in) M39 cannon, 290 rounds/gun; 4,500 lb (2,000 kg) in bomb bay, including nuclear bombs; 2,800 lb (1,300 kg) on four external hardpoints, including unguided rockets |
1x flexible 13 mm Type 2 machine gun and 2x 7.7 mm Type 92 machine guns (L2D4, L2D4-1 and L2D5) |
| Capacity Description |
|
21 pax / 4500 kg cargo |
| Max Mach (Mach) |
0.79 |
|
| National Origin |
Canada |
|
| Number Built |
403 |
487 |
| Powerplant Description |
2 × Wright J65-W-5 turbojets, 32.1 kN thrust each |
2 × Mitsubishi MK8 Kinsei 43 14-cylinder air-cooled radial piston engine, 746 kW (1000 hp) each |
| Primary Users |
United States Air Force, Pakistan Air Force , Republic of China Air Force, Republic of Vietnam Air Force |
|
| Status |
Retired from military service; 2 in use by NASA (2 operational, 1 damaged) |
|
| Wikipedia Article (URL) |
en.wikipedia.org/wiki/Martin_B-57_Canberra |
en.wikipedia.org/wiki/Showa/Nakajima_L2D |
| Flat Wing Span (m) |
19.5 |
18.956 |
| Flat Wing Area (m²) |
89 |
91.6 |
| Aircraft Engine |
Wright J65 |
|
| Number of Engines |
2 |
2 |