RD-856
The RD-855 (GRAU Index 8D69M), also known as the RD-69M, is a four nozzle liquid rocket vernier engine, burning N2O4 and UDMH in a gas generator cycle. It was used on the R-36, Tsyklon-2 and Tsyklon-3 second stage as thrust vector control by gimbaling of its nozzle. The engine is distributed through a cylindrical structure that is integrated around the main engine RD-252 module. The structure includes aerodynamic protection for the nozzles. The engine was started by a pyrotechnic ignitor.
RD-856
The RD-855 (GRAU Index 8D69M), also known as the RD-69M, is a four nozzle liquid rocket vernier engine, burning N2O4 and UDMH in a gas generator cycle. It was used on the R-36, Tsyklon-2 and Tsyklon-3 second stage as thrust vector control by gimbaling of its nozzle. The engine is distributed through a cylindrical structure that is integrated around the main engine RD-252 module. The structure includes aerodynamic protection for the nozzles. The engine was started by a pyrotechnic ignitor.
has abstract
The RD-855 (GRAU Index 8D69M), ...... ld still be out of production.
@en
Link from a Wikipage to an external page
Wikipage page ID
51,014,857
Wikipage revision ID
741,589,655
associated
R-36, Tsyklon-2 and Tsyklon-3
burn time
combustion chamber
country of Origin
designer
first date
1965-12-16
fuel
gimbal
last date
2009-01-30
manufacturer
mixture ratio
oxidiser
purpose
status
Out of production
used in
subject
comment
The RD-855 (GRAU Index 8D69M), ...... rted by a pyrotechnic ignitor.
@en
label
RD-856
@en