 Soyuz 7K-T | |
| Mission type | Orbital test flight |
|---|---|
| Operator | Soviet space program |
| COSPAR ID | 1974-036A |
| SATCAT no. | 7313 |
| Mission duration | 2 days, 30 minutes |
| Spacecraft properties | |
| Spacecraft | Soyuz 7K-T s/n 69 |
| Spacecraft type | Soyuz 7K-T/A9 |
| Manufacturer | NPO Energia |
| Launch mass | 6,675 kg (14,716 lb) |
| Start of mission | |
| Launch date | 27 May 1974, 07:20 UTC |
| Rocket | Soyuz 11A511 |
| Launch site | Baikonur 1/5[1] |
| End of mission | |
| Landing date | 29 May 1974, 07:50 UTC |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Perigee altitude | 195 km (121 mi) |
| Apogee altitude | 364 km (226 mi) |
| Inclination | 51.6 degrees |
| Period | 90.0 minutes |
Kosmos 656 (Russian: Космос 656 meaning Cosmos 656) was an unmanned test of the Soyuz 7K-T, a variant of the Soyuz spacecraft. This Soyuz variant was intended for flights to the Almaz military space stations.[1]