YF-20
Sign in to saveThe YF-20 is a Chinese liquid-fuel rocket engine burning N2O4 and UDMH in a gas generator cycle. It is a basic engine which when mounted in a four engine module forms the YF-21. The high altitude variation is known as the YF-22 is normally paired with the YF-23 vernier to form the YF-24 propulsion module for second stages. New versions when used individually for booster applications are called YF-25.
In the Vinony graph
Within Vinony's link graph, YF-20 is referenced by 170 other articles, and connects out to Long March, liquid-propellant rocket and RS-27.
It sits within the topics Rocket engines of China, Rocket engines using hypergolic propellant and Rocket engines using the gas-generator cycle.
Its subject is documented across 7 Wikipedia language editions.
Wikidata facts
Show 1 more fact
- Commons category
- YF-20
via Wikidata · CC0
~3 min read
Encyclopedic overview
3 sectionsContents
- Versions
- Modules
- References
The YF-20 is a Chinese liquid-fuel rocket engine burning N2O4 and UDMH in a gas generator cycle. It is a basic engine which when mounted in a four engine module forms the YF-21. The high altitude variation is known as the YF-22 is normally paired with the YF-23 vernier to form the YF-24 propulsion module for second stages. New versions when used individually for booster applications are called YF-25.
==Versions== The basic engine has been used since the Feng Bao 1 rocket and has been the main propulsion of the Long March 2, Long March 3 and Long March 4 families. YF-20: Core engine. Flown originally on the Feng Bao 1 and Long March 2A. YF-20A: Core engine. YF-20B (a.k.a. DaFY5-1): Core engine, also used on the boosters. YF-20C: Core engine, also used on the boosters. YF-20D: Core engine, also used on the boosters. YF-20E: Core engine, also used on the boosters. YF-22: Upper stage version with enlarged nozzle are ratio. Flown originally on the Feng Bao 1 second stage with no verniers, and on the Long March 2A with the YF-23 verniers as the YF-24. YF-22A: Upper stage version. YF-22B (a.k.a. DaFY20-1): Upper stage version. YF-22C: Upper stage version. YF-22D: Upper stage version. YF-22E: Upper stage version. YF-25: Booster stage version.
Excerpted from Wikipedia’s “YF-20” article, available under the CC BY-SA 4.0 licence.