DTIC ADA370547: Hypersonic Flight Vehicles: Perspective and Prognosis,

	DTIC ADA370547: Hypersonic Flight Vehicles: Perspective and Prognosis,
	by Defense Technical Information Center
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	Although hypersonics has been with us for over 50 years,
	the great advantages of very high speed flight have not
	been brought to engineering fruition. The present paper
	gives a brief overview of hypersonic flight, including
	the often neglected chemical reactions and upper
	atmospheric characteristics which MUST be included for
	realistic studies. The lack of ground test facilities
	with COMPLETE simulation of hypersonic flight is, in the
	author's view, a major impediment to ever developing, in
	some rational way, hypersonic vehicles with very high
	performance. There has been little facility research
	since the early 1970's and NO continuing effort to
	examine possible solutions because of the long lead time
	required to research and test such techniques. At the
	same time, current and future systems, which might take
	advantage of a very high speed flight regime, are
	severely handicapped by long lead times (beyond the
	project plans), and the expense of funding the research
	and development needed. Long lead times and expensive
	test set-ups are required to evaluate ANY hypersonic
	facility proposal, but flight test development is even
	more costly and time consuming. Modern computational
	capability and new knowledge bases in several key areas
	have been developed (briefly reviewed in the report) BUT,
	detailed testing is needed to validate concepts and
	preliminary designs. If we can't build a ground test
	facility, I suggest we can't build a vehicle!

	Date Published: 2018-04-26 00:25:33
	Identifier: DTIC_ADA370547
	Item Size: 29359874
	Language: english
	Media Type: texts

	# Topics
	DTIC Archive; Bogdonoff, Seymour M.; ...

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	# Uploaded by
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