RD-0146

The RD-0146 is a Russian cryogenic rocket engine. The RD-0146 engine was developed by KBKhA design bureau in Voronezh, Russia, in cooperation with the American Pratt & Whitney Rocketdyne company. In 2009, it came into prominence, as Russian space agency chose it for the second-stage of the proposed Rus-M launch vehicle designed to carry the future Russian PPTS crewed spacecraft.[1] After the cancellation of Rus-M rocket, the RD-0146D variant was selected as the powerplant for the KVTK upper stage.

RD-0146D
Model of RD-0146
Country of originRussia
Date2001
DesignerKBKhA Design Bureau
ManufacturerTsSKB Progress
Applicationengine for KVTK upper stage
Liquid-fuel engine
PropellantLOX / LH2
CycleExpander cycle
Configuration
Chamber1
Performance
Thrust (vac.)68.6 kN (15,400 lbf)
Chamber pressure5.9 megapascals (860 psi)
Isp (vac.)470 seconds (4.6 km/s)
Dimensions
Length3.558 metres (11.67 ft)
Diameter1.95 metres (6 ft 5 in)

Development

In 1999, Khrunichev requested KBKhA to develop RD-0146U version of the engine for Proton and Angara rockets. The development of the engine was partially financed by Pratt & Whitney Rocketdyne. Pratt & Whitney signed a preliminary marketing agreement on April 7, 2000 with Russia's Chemical Automatics Design Bureau giving Pratt & Whitney exclusive international marketing rights to the RD-0146.[1]

Description

The RD-0146 is the first Russian rocket engine not to feature a gas generator and to be equipped with extendable nozzle extension without a cooling system. The engine is capable of five firings and thrust control in two planes. According to the developer, the lack of a gas generator system ensures higher reliability of the engine for multiple firings, by removing the potential of an ignition failure in the engine power cycle.

gollark: > convinience
gollark: 𝔸𝕝𝕝 𝕀𝕙𝕒𝕝𝕝 𝕓𝕖 𝕓𝕖𝕖𝕀.
gollark: How many is "too many"?
gollark: It's not safe.
gollark: This is what *happens* when you run commands here.

See also

Comparable engines

References
  1. "RD-0146 rocket engine".
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.