RD-215
Modules
Table:
RD-215 Family of Engines[1]

Engine

RD-215

RD-215U

RD-215M

GRAU

8D514
8D514U
8D514M

Development

1958-1960
1960-1961
1966-1968

Propellant

AK-27I (73% nitric acid, 27% N2O4, and iodine passivant) / UMDH[2]

Combustion chamber pressure

7.355 MPa (1,066.8 psi)

Thrust, vacuum

887 kN (199,000 lbf)
887 kN (199,000 lbf)
890 kN (200,000 lbf)

Thrust, sea level

740 kN (170,000 lbf)
740 kN (170,000 lbf)
742.8 kN (167,000 lbf)

Isp, vacuum

289 s (2.83 km/s)
289 s (2.83 km/s)
291.3 s (2.857 km/s)

Isp, sea level

246 s (2.41 km/s)
246 s (2.41 km/s)
248 s (2.43 km/s)

Burn time

146s
N/A
N/A

Length

2,205 mm (86.8 in)
2,205 mm (86.8 in)
2,205 mm (86.8 in)

Diameter

2,260 mm (89 in)
2,260 mm (89 in)
2,260 mm (89 in)

Dry weight

575 kg (1,268 lb)
575 kg (1,268 lb)
570 kg (1,260 lb)

Use

R-14 (8K65), Kosmos-1 and Kosmos-3
R-14U (8K65U)
Kosmos-3M

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