In numbers Through the lens Video
After a year, the SM-4 was built, based on the SM-3, with a crew of three, equipped with two engines and starting engines.
Technical specifications
| DESIGNER | Alekseev |
| COUNTRY | Russia |
| TYPE |
Experimental ekranoplan
|
| CREW | 3 |
| POWER-PLANT | Two turbojet engines of unknown type and starting engines. |
| Thrust, kgf | - |
| DIMENSIONS | |
| Length, m | 20,00 |
| Height, m | 1,96 |
| Wing span, m | 15,7 |
| Wing area, m2 | - |
| WEIGHT | |
| Maximum take-off, kg | 4.800 |
| Normal take-off, kg | - |
| Empty aircraft, kg | - |
| Internal fuel, kg | - |
| Warload, kg | - |
| Payload, kg | - |
| PERFORMANCE | |
| Maximum speed, km/h | 230 |
| Cruising speed, km/h | 140 |
| Operating ceiling (flight height), m | 1,2 |
| Sea state, poits | - |
| Range, km | - |
| ARMAMENT | Doesn't have (defensive). |