Cyclone-4 Launch Vehicle III stage engine. Ground testing results

Paper number

IAC-13,C4,1,5,x17917

Author

Mr. Alexandr Prokopchuk, Yuzhnoye State Design Office, Ukraine

Year

2013

Abstract

Current material is the addendum to the earlier presented in the report of International Astronautic Congress 2010 and 2013 information about ground tests of RD861K Liquid Rocket Engine destined for installation into the Cyclone-4 LV third stage.
The report presents results of decisions at followed basic questions:
	choice of nozzle extension material;
	modernizations of mixture ratio flow regulation system for ≤ 1% assurance of accuracy;
	assurances of needed natural frequency of engine elastic suspension;
	assessments of engine vibration strength;
	stabilities of operations in combustion chamber and gas generator;
	assurance of required engine life.
Information is given on further plans to finish the engine ground testing and to prepare the ground fire tests in composition of the stage propulsion system.

Abstract document

IAC-13,C4,1,5,x17917.brief.pdf

Manuscript document

(absent)