NASA-LLIS-1264

Lessons Learned – A Thorough Understanding of Model Mount (sting, arc sector, etc) Design Loads is Required by All Key Test Personnel

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T17:47:04Z
date available	2017-09-04T17:47:04Z
date copyright	07/01/2002
date issued	2002
identifier other	ENVEQCAAAAAAAAAA.pdf
identifier uri	http://yse.yabesh.ir/std/handle/yse/170331
description abstract	Description of Driving Event: While testing at Mach 0.8 in the 16-ft Transonic Tunnel, a full-scale F-15 inlet model separated from the sting. The model traveled downstream and impacted the catch screen and turning vanes. The impact resulted in total loss of the model and damage to the screen. Some debris got through the screen and damaged the wind tunnel blades. The sting was also damaged. An investigation team concluded that the aerodynamic loads on the model resulted in sting loads that exceeded the ultimate strength of the sting. Possible reasons the large loads occurred are: operating at a Mach Number not in the original test envelope, F-15 cowl traveled past intended angle, sting deflection, and dynamic loads. THERE ARE 6 LESSONS IN LLIS FOR THIS DRIVING EVENT.
language	English
title	NASA-LLIS-1264	num
title	Lessons Learned – A Thorough Understanding of Model Mount (sting, arc sector, etc) Design Loads is Required by All Key Test Personnel	en
type	standard
page	2
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;2002
contenttype	fulltext
subject keywords	Test Facility