USA - Naval aviation and armament
Vought O3U observation plane / SU reconnaissance plane
O3U-1
| Modification | Purpose | Deliveries | Number of commissioned | Discarding | Differences from the previous modification |
| O3U-1 | observer | 1930 - 7/1935 | 87, mostly on floats | 1938 | Pratt & Whitney R-1340-C engine (425 h. p.) |
| O3U-2 (SU-1) | recon | 29 | Pratt & Whitney R-1690-42 engine (600 h. p.) | ||
| O3U-3 | observer | 76, mostly on floats | R-1340-12 engine (550 h. p.) | ||
| O3U-4 (SU-2) | recon | 45 | R-1690-42 engine (600 h. p.) | ||
| O3U-4 (SU-3) | 20 | minor | |||
| O3U-6 | observer | 32, mostly on floats | R-1340-12 (16 planes) or R-1340-18 (16 planes) engine (550 h. p.), enclosed cabin | ||
| SU-4 | recon | 20 | R-1690-42 engine (600 h. p.) |
| Modification |
SU-1 |
|
Wing span, m |
10.97 |
|
Length, m |
8.37 |
|
Height, m |
3.45 |
|
Wings area, m2 |
31.31 |
|
Empty mass, kg |
1502 |
|
Full flying-off mass, kg |
2161 |
| Engine | 1 Pratt & Whitney R-1690-42 |
| Power, h. p. | 600 |
| Maximal speed, km/h | 269 |
| Cruise speed, km/h | |
| Flying range, km | 1094 |
| Vertical speed, m/s | |
| Maximal altitude, m | 5670 |
| Complement | 2 |
| Armament | 3 õ 7.6 Browning MG |
O3U-3
© Ivan Gogin, 2008