.png)
NK-33
Sign in to saveThe NK-33 (GRAU index: 14D15) and its vacuum-optimized variant, the NK-43, were rocket engines developed in the late 1960s and early 1970s by the Kuznetsov Design Bureau for the Soviet space program's ill-fated N1 Moon rocket. The NK-33 is among the most powerful LOX/RP-1 powered rocket engines ever built, noted for its high specific impulse and low structural mass.
Key facts
- Rocket engine.name
- NK-33
- Rocket engine.image
- Aerojet AJ26 in the Stennis E-1 Test Stand - cropped.jpg
- Rocket engine.caption
- The Russian NK-33 was modified and renamed the AJ26-58 by Aerojet. This AJ26-58 is shown on the test stand at John C. Stennis Space Center.
- Rocket engine.country_of_origin
- Soviet Union
- Rocket engine.date
- 1970s
- Rocket engine.designer
- Kuznetsov Design Bureau
- Rocket engine.manufacturer
- JSC Kuznetsov (Mashinostroitel)
- Rocket engine.purpose
- 1st/2nd-stage engine
- Rocket engine.predecessor
- NK-15, NK-15V
- Rocket engine.successor
- AJ26-58, AJ26-59, AJ26-62
- Rocket engine.type
- liquid
- Rocket engine.oxidiser
- LOX
- Rocket engine.fuel
- RP-1
- Rocket engine.cycle
- Staged combustion
- Rocket engine.pumps
- Turbopump
- Rocket engine.throttle_range
- 50–105%
- Rocket engine.thrust_to_weight
- 137
via Wikipedia infobox
Article
12 sectionsContents
- Design
- History
- N1
- Sale of engines to Aerojet
- Kistler K-1
- Antares
- Soyuz-2.1v
- Versions
- Gallery
- See also
- References
- External links
The NK-33 (GRAU index: 14D15) and its vacuum-optimized variant, the NK-43, were rocket engines developed in the late 1960s and early 1970s by the Kuznetsov Design Bureau for the Soviet space program's ill-fated N1 Moon rocket. The NK-33 is among the most powerful LOX/RP-1 powered rocket engines ever built, noted for its high specific impulse and low structural mass.
The NK-33 was an improved version of the earlier NK-15 engine, which powered the original N1 launch vehicle. Key upgrades included simplified pneumatic and hydraulic systems, advanced controls, enhanced turbopumps, an improved combustion chamber, fewer interfaces employing pyrotechnic devices, and modified interfaces to facilitate replacement of parts during refurbishment.