RD-107
RD-107 variants

RD-107

Section Title: RD-107 variants
Table Section Text: None

Engine	RD-107	RD-107K	RD-107ММ	RD-117	RD-107A	RD-107A

AKA	8D74	8D74K	8D728 or 8D74M	11D511	14D22	14D22KhZ

Development	1954-1959	1965-1976	1969-1975	1993-2001	2001-2004

Engine Cycle	Liquid propellant rocket engine burning RG-1/LOX in a gas generator cycle with the turbine driven by steam generated by catalytic decomposition of H2O2

Combustion Chamber Pressure	5.88 MPa (853 psi)	5.88 MPa (853 psi)	5.85 MPa (848 psi)	5.32 MPa (772 psi)	6.00 MPa (870 psi)	6.00 MPa (870 psi)

Thrust (Sea Level)	813.98 kN (182,990 lbf)	818.88 kN (184,090 lbf)	755.14 kN (169,760 lbf)	778.68 kN (175,050 lbf)	839.48 kN (188,720 lbf)	839.48 kN (188,720 lbf)

Thrust (Vacuum)	1,000.31 kN (224,880 lbf)	995.41 kN (223,780 lbf)	921.86 kN (207,240 lbf)	Unknown	1,019.93 kN (229,290 lbf)	1,019.93 kN (229,290 lbf)

Specific Impulse (Sea Level)	256 s (2.51 km/s)	256.2 s (2.512 km/s)	257 s (2.52 km/s)	253 s (2.48 km/s)	263.3 s (2.582 km/s)	263.3 s (2.582 km/s)

Specific Impulse (Vacuum)	313 s (3.07 km/s)	313.3 s (3.072 km/s)	314 s (3.08 km/s)	316 s (3.10 km/s)	320.2 s (3.140 km/s)	320.2 s (3.140 km/s)

Height	2,865 mm (112.8 in)	2,865 mm (112.8 in)	2,865 mm (112.8 in)	2,865 mm (112.8 in)	2,578 mm (101.5 in)	2,578 mm (101.5 in)

Diameter	1,850 mm (73 in)	1,850 mm (73 in)	1,850 mm (73 in)	1,850 mm (73 in)	1,850 mm (73 in)	1,850 mm (73 in)

Intended Use	R-7, Sputnik, Vostok, and Voskhod	Molniya (8К78)	Molniya-M (8К78М) and Soyuz (11A511)	Soyuz-U (11А511U) and Soyuz-U2 (11A511U2)	Soyuz-FG (11А511U-FG), Soyuz-STA (372RN21A), and Soyuz-STB (372RN21B)	Soyuz-2.1a (14A14-1A) and Soyuz-2.1b (14A14-1B)

Status	Retired	Retired	Retired	Retired	In Production	In Production

References	Unless otherwise noted:

Sentence(s)

RD-107 was used on the Soyuz-FG (11А511U-FG), Soyuz-STA (372RN21A), and Soyuz-STB (372RN21B).

final_sentence: RD-107 was used on the Soyuz-FG (11А511U-FG), Soyuz-STA (372RN21A), and Soyuz-STB (372RN21B).