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Collection:
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NASA Dryden Flight Research Center Collection
Collection
NASA Dryden Flight Research Center Collection
Collection
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Title:
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New sonic shockwave multi-element sensors mounted on a small airfoil flown on F-15B testbed aircraft
Title
New sonic shockwave multi-element sensors mounted on a small airfoil flown on F-15B testbed aircraft
Title
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Description:
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An experimental device to pinpoint the location of a shockwave that develops in an aircraft flying at transonic and supersonic speeds was recently flight-tested at NASA's Dryden Flight Research Center, Edwards, California.
The shock location sensor, developed by TAO Systems, Hampton, Va., utilizes a multi-element hot-film sensor array along with a constant-voltage anemometer and special diagnostic software to pinpoint the exact location of the shockwave and its characteristics as it develops on an aircraft surface.
For this experiment, the 45-element sensor was mounted on the small Dryden-designed airfoil shown in this illustration. The airfoil was attached to the Flight Test Fixture mounted underneath the fuselage of Dryden's F-15B testbed aircraft. Tests were flown at transonic speeds of Mach 0.7 to 0.9, and the device isolated the location of the shock wave to within a half-inch. Application of this technology could assist designers of future supersonic aircraft in improving the efficiency of engine air inlets by controlling the shockwave, with a related improvement in aircraft performance and fuel economy.
Description
An experimental device to pinpoint the location of a shockwave that develops in an aircraft flying at transonic and supersonic speeds was recently flight-tested at NASA's Dryden Flight Research Center, Edwards, California.
The shock location sensor, developed by TAO Systems, Hampton, Va., utilizes a multi-element hot-film sensor array along with a constant-voltage anemometer and special diagnostic software to pinpoint the exact location of the shockwave and its characteristics as it develops on an aircraft surface.
For this experiment, the 45-element sensor was mounted on the small Dryden-designed airfoil shown in this illustration. The airfoil was attached to the Flight Test Fixture mounted underneath the fuselage of Dryden's F-15B testbed aircraft. Tests were flown at transonic speeds of Mach 0.7 to 0.9, and the device isolated the location of the shock wave to within a half-inch. Application of this technology could assist designers of future supersonic aircraft in improving the efficiency of engine air inlets by controlling the shockwave, with a related improvement in aircraft performance and fuel economy.
Description
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Photo Date:
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Dec 1996
Photo_Date
Dec 1996
Photo Date
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Keywords:
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F-15B
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Keywords:
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F-15
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Keywords:
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Flight Test Fixture
Keywords
Flight Test Fixture
Keywords
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Keywords:
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TAO Systems
Keywords
TAO Systems
Keywords
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Keywords:
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hot-film
Keywords
hot-film
Keywords
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Keywords:
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shock wave
Keywords
shock wave
Keywords
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Keywords:
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shockwave location sensor
Keywords
shockwave location sensor
Keywords
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Keywords:
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anemometer
Keywords
anemometer
Keywords
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facet_what:
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F-15B
facet_what
F-15B
facet_what
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facet_where:
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California
facet_where
California
facet_where
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facet_where:
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Dryden Flight Research Center (DFRC)
facet_where
Dryden Flight Research Center (DFRC)
facet_where
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facet_when:
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Dec 1996
facet_when
Dec 1996
facet_when
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facet_when_year:
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1996
facet_when_year
1996
facet_when_year
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Photo Number:
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EC96-43669-4
Photo_Number
EC96-43669-4
Photo Number
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UID:
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SPD-DRYDEN-EC96-4366 9-4
UID
SPD-DRYDEN-EC96-4366 9-4
UID
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original url:
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original_url
original url
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