RD-58

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RD-58M
Country of origin USSR
First flight 1967
Designer OKB-1, V. M. Melnikov
Manufacturer Voronezh Mechanical Plant
Application Upper Stage
Associated L/V N-1, Proton-K, Proton-M, Zenit
Predecessor S1.5400
Status In Production
Liquid-fuel engine
Propellant LOX / RG-1
Cycle Oxidizer Rich Stage Combustion
Configuration
Chamber 1
Performance
Thrust (vac.) 79.46 kilonewtons (17,860 lbf)
Isp (vac.) 353 sec
Burn time up to 600s
Dimensions
Dry weight 300 kilograms (660 lb)
Used in
Block D
References
References [1][2][3][4]

The RD-58 (manufacturer designation 11D58) was a rocket engine, developed in the 1960s by OKB-1, now RKK Energia. The project was managed by Mikhail Melnikov, and it was based on the previous S1.5400 which was the first stage combustion engine in the world.[1] The engine was initially created to power the Block D stage of the Soviet Union's abortive N-1 rocket.[5] Derivatives of this stage are now used as upper stages on some Proton and Zenit rockets.[6] An alternative version of the RD-58 chamber, featuring a shorter nozzle, was used as the N-1's roll-control engine.

The RD-58 uses LOX as the oxidizer and RG-1 as fuel in an oxidizer rich stage combustion cycle. It features a single gimbaled chamber, radial centrifugal pumps with auxiliary booster pumps, and an oxygen-rich preburner.[7] Recent modifications include a lightweight carbon-composite nozzle extender developed by NPO Iskra.[8][9][10]

The Buran spacecraft used two of an evolution of the RD-58M, called 17D12, as its main orbital correction engines. Instead of RG-1, it burned Syntin, and could be ignited 15 times.[11][12] It is assumed that it was the base for the RD-58S, which had practically the same specifications and powered the Blok DM-2M.[13] But the manufacturer states that the engine is compatible with both propellants.[1]

The current version of the engine is the RD-58M (manufacturer designation 11D58M), which has slightly reduced thrust, but increased isp. An even newer version is under development and is known as the RD-58MF (manufacturer designation 11D58MF). It will reduce thrust to 49.03 kilonewtons (11,020 lbf) to keep the same length but increase expansion ratio to 500:1. This will enable it to gain 20s of isp (to an expected 372s). It will eventually fly on the Blok DM-03.[14] This new version of the engine will be built in the Krasnoyarsk Machine-Building Plant.[15][16] During a November 2014 interview, Vladimir Kolmykov, the Deputy General Director of the Chemical Division of Krasnoyarsk Machine-Building Plant, stated that the production of Block-DM was suspended during that year, but work on the stage and development of the RD-58MF will resume during 2015.[17]

Versions

This engine has had many versions through the years:

RD-58 Family of Engines
Name RD-58 RD-58M RD-58M
(Carbon Composite Nozzle)		 RD-58S RD-58Z RD-58MF 17D12
Index 11D58 11D58M 11D58S 11D58Z 11D58MF
Development years 1964-1968 1970-1974 2000-2004 1986-1995 1981-1990 2002-2009 1981-1987
Engine Type Oxidizer Rich Stage Combustion upper stage liquid rocket engine Orbital correction liquid rocket engine
Propellant RG-1/LOX RG-1/LOX RG-1/LOX Syntin/LOX RG-1/LOX RG-1/LOX Syntin/LOX
O/F 2.48 2.48 2.82  ? 2.6 2.82  ?
Chamber Pressure 7.8 MPa (1,130 psi) 7.75 MPa (1,124 psi) 7.9 MPa (1,150 psi) 7.94 MPa (1,152 psi) 7.8 MPa (1,130 psi) 7.9 MPa (1,150 psi) 7.94 MPa (1,152 psi)
Thrust (Vac) 83.4 kN (18,700 lbf) 83.4 kN (18,700 lbf) 85 kN (19,000 lbf) 86.3 kN (19,400 lbf) 71 kN (16,000 lbf) 49.03 kN (11,020 lbf) 86.24 kN (19,390 lbf)
Isp (Vac) 349 s (3.42 km/s) 356 s (3.49 km/s) 361 s (3.54 km/s) 361 s (3.54 km/s) 361 s (3.54 km/s) 372 s (3.65 km/s) 362 s (3.55 km/s)
Nozzle Expansion 189 189 280 189 189 500 189
Ignitions 4 4 7 5 5  ? 15
Burntime 600 seconds 720 seconds 1200 seconds 680 seconds 660 seconds  ? seconds 680 seconds
Length 2.27 m (89 in) 2.27 m (89 in) 2.72 m (107 in) 2.27 m (89 in) 2.27 m (89 in) 2.27 m (89 in)
Diameter 1.17 m (46 in) 1.17 m (46 in) 1.4 m (55 in) 1.17 m (46 in) 1.17 m (46 in) 1.17 m (46 in)
Weight 300 kg (660 lb) 310 kg (680 lb) 340 kg (750 lb) 310 kg (680 lb) 300 kg (660 lb) 230 kg (510 lb)
Used on N-1 and Blok D Blok DM Blok DM-SL since 2003 and Blok DM-SLB Blok DM-2M Blok DM-SL 11S861-03 Buran
First Launch 1967-03-10 1974-03-26 2003-06-10 1994-10-13 1999-03-28  ? 1988-11-15
Status Retired Retired In Production Retired Retired In Production Retired
References [2][5][6][7][8][9][11][12][13][14][18][19][20][21][22][23][25]

References

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