| Manufacturer |
Supermarine |
Keystone Aircraft Corporation |
| Description |
The Supermarine Southampton was a flying boat of the interwar period designed and produced by the British aircraft manufacturer Supermarine. |
The Keystone B-3A was a bomber aircraft developed for the United States Army Air Corps by Keystone Aircraft in the late 1920s. |
| First Flight |
1925-03-10 |
|
| Entry Into service |
1925-01-01 |
|
| Production End |
1934-01-01 |
|
| Service End |
|
1940-01-01 |
| Designer |
R. J. Mitchell |
Keystone Aircraft Corporation |
| Type |
Military reconnaissance flying boat |
Bomber |
| Length (m) |
14.9352 |
14.9 |
| Height (m) |
6.096 |
4.8 |
| Cockpit Crew |
|
5 |
| Max Speed (km/h) |
152.8877 |
183 |
| Cruise Speed (km/h) |
|
158 |
| Max Ceiling (m) |
1813.56 |
3870 |
| Rate of Climb (m/s) |
1.8694 |
2.7 |
| Armament |
3 × .303 in (7.7 mm) Lewis guns, one in bows and two amidships; 1100 lb of bombs under the wings |
3 × .30 in (7.62 mm) machine guns; 2,500 lb (1,100 kg); 4,000 lb (1,800 kg) on short runs |
| Endurance (h) |
6.3 |
|
| National Origin |
United Kingdom |
|
| Number Built |
83 |
63 |
| Powerplant Description |
2 × Napier Lion VA inline W-block, 373 kW (500 hp) each |
2 × Pratt & Whitney R-1690-3 radial engines, 392 kW (526 hp) each |
| Primary Users |
Royal Air Force, Imperial Japanese Navy , Argentine Naval Aviation , Imperial Airways |
United States Army Air Corps |
| Status |
Out of service |
Retired |
| Wikipedia Article (URL) |
en.wikipedia.org/wiki/Supermarine_Southampton |
en.wikipedia.org/wiki/Keystone_B-3 |
| Flat Wing Span (m) |
22.86 |
22.8 |
| Flat Wing Area (m²) |
134.5236 |
106.4 |
| Aircraft Engine |
Napier Lion |
|
| Number of Engines |
2 |
2 |