The RD-801 as well as the RD-810 are being designed based on the work of the RD-8 vernier and the maintenance and improvement of the RD-120 engines. The RD-801 can be used stand alone on a Mayak or in a cluster.[2]
Versions
The designers have proposed three versions of this engine:
RD-801 (version 0) (Russian: РД-801 (версия 0)): This is the basic module with no TVC.[2]
RD-801 (version 01) (Russian: РД-801 (версия 01)): This is a version which includes a TVC by gimbaling of the nozzle in two axis by +/- 6°.[2]
RD-801V (Russian: РД-801В): High altitude of the rocket engine with extended nozzle.[2]
See also
Mayak – Prospective Ukrainian launch vehicle family for which the RD-801 is being developed.
RD-8 – The Zenit second stage vernier engine which was the technological base for the RD-801.
RD-120 – The Zenit second stage main engine which was the technological base for the RD-801
RD-810 – A higher thrust engine of the same family.