Japan - naval aviation and armaments

B4Y1
| Modification | Purpose | Deliveries | Number of commissioned | Discarding | Differences from the previous modification |
| B4Y1 | torpedo bomber | 1936 - 1940 | 205 | 1940 | --- |
| Modification |
B4Y1 |
|
Wing span, m |
15.00 |
|
Length, m |
10.15 |
|
Height, m |
4.36 |
|
Wings area, m2 |
50.00 |
|
Empty mass, kg |
2000 |
|
Full flying-off mass, kg |
3600 |
| Engine | 1 Nakajima Hikari 2 |
| Power, h. p. | 840 |
| Maximal speed, km/h | 278 |
| Cruise speed, km/h | 215 |
| Flying range, km | 1475 |
| Vertical speed, m/s | 3.6 |
| Maximal altitude, m | 6000 |
| Complement | 3 |
| Armament | 1 x 7.7 92-shiki MG, 1 800-kg torpedo or 500 kg of bombs |

B4Y1
© Ivan Gogin, 2008