High Alpha Research Vehicle
- High Alpha Research Vehicle
Infobox Aircraft
name=F-18 High Alpha Research Vehicle (HARV)
type=Test aircraft
manufacturer=McDonnell Douglas/ Northrop
caption=F-18 HARV in high alpha maneuver
designer=
first flight=
introduction=
retired=
number built=
status=
primary user= NASA
more users=
unit cost=
developed from=F/A-18 Hornet
variants with their own articles=
The High Alpha (angle of attack) Research Vehicle was a modified F/A-18 Hornet used by NASA in a 3-phase program investigating controlled flight at high angles of attack using thrust vectoring, modifications to the flight controls, and forebody strakes. The program lasted from April 1987 to September 1996.[cite book | last = Jenkins | first = Dennis R. | authorlink = | coauthors = | title = F/A-18 Hornet: A Navy Success Story | publisher = McGraw-Hill |date= 2000 | location = New York | url = | doi = | id = ISBN 0071346961 ] [ [http://www.nasa.gov/centers/dryden/news/FactSheets/FS-002-DFRC.html F-18 High Alpha Research Vehicle (HARV) fact sheet] , NASA/Dryden Flight Research Center.] ]NASA reported that in one phase of the project, Dryden Flight Research Center "research pilots Bill Dana and Ed Schneider completed the envelope expansion flights in February 1992. Demonstrated capabilities included stable flight at approximately 70 degrees angle of attack (previous maximum was 55 degrees) and rolling at high rates at 65 degrees angle of attack. Controlled rolling would have been nearly impossible above 35 degrees without vectoring." [ [http://www.nasa.gov/centers/dryden/history/pastprojects/HARV/index.html NASA Past Projects: F-18 High Alpha Research Vehicle] , NASA] Performance figures were not listed for other phases.
ee also
aircontent
related=
*F/A-18 Hornet
similar aircraft=
*Mikoyan MiG-35
see also=
*List of military aircraft of the United States
*List of fighter aircraft
References
External links
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19970012895_1997021250.pdf Overview of HATP Experimental Aerodynamics Data for the Baseline F/A-18 Configuration] , NASA, September 1996.
* [http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19950007843_1995107843.pdf Preparations for flight research to evaluate actuated forebody strakes on the F-18 high-alpha research vehicle] , NASA, July 1994.
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