Long March 4B Stage 2

The Long March 4B second stage is the central N2O4/UDMH propulsion stage between the first and third stages of the LM-4B launcher. CNSA supports the vehicle-level propellant and three-stage architecture; this integrated record avoids asserting an engine model not present in those sources.

Identity

Domains: spaceflight
Identity Level: integrated-system
Kind: integrated-propulsion-system
Name: Long March 4B Stage 2
Status: active

Details

Description: The Long March 4B second stage is the central N2O4/UDMH propulsion stage between the first and third stages of the LM-4B launcher. CNSA supports the vehicle-level propellant and three-stage architecture; this integrated record avoids asserting an engine model not present in those sources.
Propellants: N2O4UDMH

Assets & Meta

Creation Time: August 13, 2026 at 23:31:37 UTC
Updated Time: August 13, 2026 at 23:31:37 UTC

Other

Sources

Title
CNSA Long March-4B
Url
https://www.cnsa.gov.cn/english/n6465715/n6465718/c6476916/content.html
Title
CNSA Long March-4B (Chinese technical page)
Url
https://www.cnsa.gov.cn/n6758824/n6759008/n6759011/c6794062/content.html