NASA-LLIS-0962

Lessons Learned – Space Shuttle Main Engine (SSME): Computer Models of Transient Performance

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T18:12:57Z
date available	2017-09-04T18:12:57Z
date copyright	05/15/1995
date issued	1995
identifier other	HDUEQCAAAAAAAAAA.pdf
identifier uri	http://yse.yabesh.ir/std;jsery=autho162s7D8308/handle/yse/195944
description abstract	Description of Driving Event: Fuel or oxidizer starvation will cause hazardous conditions due to off-nominal mixture ratios in liquid propellant rocket engines. A safe and repeatable start sequence was developed by making maximum use of the engine mounted computer to control propellant valve positions. The report stated that "Without the precise timing and positioning (of valves) allowed by the Main Engine controller (MEC), it is doubtful that a satisfactory start could have been deve.
language	English
title	NASA-LLIS-0962	num
title	Lessons Learned – Space Shuttle Main Engine (SSME): Computer Models of Transient Performance	en
type	standard
page	2
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1995
contenttype	fulltext
subject keywords	Configuration Management
subject keywords	Cryogenic Systems
subject keywords	Ground Equipment
subject keywords	Hardware
subject keywords	Launch Vehicle
subject keywords	Parts Materials & Processes
subject keywords	Safety & Mission Assurance
subject keywords	Spacecraft
subject keywords	Test Article
subject keywords	Test Facility