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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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How differential deflection of the inboard and outboard leading-edge flaps affected the handling qualities of this modified F/A-18A was evaluated during the first check flight in the Active Aeroelastic Wing program at NASA's Dryden Flight Research Center.
Title
How differential deflection of the inboard and outboard leading-edge flaps affected the handling qualities of this modified F/A-18A was evaluated during the first check flight in the Active Aeroelastic Wing program at NASA's Dryden Flight Research Center.
Title
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Description:
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How differential deflection of the inboard and outboard leading-edge flaps affected the handling qualities of this modified F/A-18A was evaluated during the first check flight in the Active Aeroelastic Wing program at NASA's Dryden Flight Research Center.
Description
How differential deflection of the inboard and outboard leading-edge flaps affected the handling qualities of this modified F/A-18A was evaluated during the first check flight in the Active Aeroelastic Wing program at NASA's Dryden Flight Research Center.
Description
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Project Description:
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The Active Aeroelastic Wing project at NASA's Dryden Flight Research Center is a two-phase flight research program that is investigating the potential of aerodynamically twisting flexible wings to improve roll maneuverability of high-performance aircraft at transonic and supersonic speeds. Traditional control surfaces such as ailerons and leading-edge flaps are used as active trim tabs to aerodynamically induce the twist. From flight test and simulation data, the program is developing structural modeling techniques and tools to help design lighter, more flexible high aspect-ratio wings for future high-performance aircraft, which could translate to more economical operation or greater payload capability.
The program uses a modified F/A-18A Hornet as its testbed aircraft, with wings that were modified to the flexibility of the original pre-production F-18 wing. Other aircraft modifications include a new actuator to operate the outboard portion of a divided leading edge flap over a greater range and rate, and a research flight control system to host the aeroelastic wing control laws.
AAW flight tests began in November, 2002 with checkout and parameter-identifica tion flights. Based on data obtained during 50 research flights over a five-month period, new AAW flight control software was then developed over the following year. A second series of research flights began in late 2004 evaluated the AAW concept in a real-world flight environment, using the newly created control laws in the aircaft's research flight control computer. About 45 research missions were flown over a four-month period in the second phase of flight testing that concluded in March, 2005. Extensive analysis of data acquired during the project is continuing at NASA Dryden.
The Active Aeroelastic Wing Program is jointly funded and managed by the Air Force Research Laboratory and NASA Dryden Flight Research Center, with Boeing's Phantom Works as prime contractor for wing modifications and flight control software development. The F/A-18A aircraft was provided by the Naval Aviation Systems Test Team and modified for its research role by NASA Dryden technicians.
Project_Description
The Active Aeroelastic Wing project at NASA's Dryden Flight Research Center is a two-phase flight research program that is investigating the potential of aerodynamically twisting flexible wings to improve roll maneuverability of high-performance aircraft at transonic and supersonic speeds. Traditional control surfaces such as ailerons and leading-edge flaps are used as active trim tabs to aerodynamically induce the twist. From flight test and simulation data, the program is developing structural modeling techniques and tools to help design lighter, more flexible high aspect-ratio wings for future high-performance aircraft, which could translate to more economical operation or greater payload capability.
The program uses a modified F/A-18A Hornet as its testbed aircraft, with wings that were modified to the flexibility of the original pre-production F-18 wing. Other aircraft modifications include a new actuator to operate the outboard portion of a divided leading edge flap over a greater range and rate, and a research flight control system to host the aeroelastic wing control laws.
AAW flight tests began in November, 2002 with checkout and parameter-identifica tion flights. Based on data obtained during 50 research flights over a five-month period, new AAW flight control software was then developed over the following year. A second series of research flights began in late 2004 evaluated the AAW concept in a real-world flight environment, using the newly created control laws in the aircaft's research flight control computer. About 45 research missions were flown over a four-month period in the second phase of flight testing that concluded in March, 2005. Extensive analysis of data acquired during the project is continuing at NASA Dryden.
The Active Aeroelastic Wing Program is jointly funded and managed by the Air Force Research Laboratory and NASA Dryden Flight Research Center, with Boeing's Phantom Works as prime contractor for wing modifications and flight control software development. The F/A-18A aircraft was provided by the Naval Aviation Systems Test Team and modified for its research role by NASA Dryden technicians.
Project Description
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Photo Date:
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November 15, 2002
Photo_Date
November 15, 2002
Photo Date
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NASA Photo by:
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Carla Thomas
NASA_Photo_by
Carla Thomas
NASA Photo by
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facet_what:
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Active Aeroelastic Wing (AAW)
facet_what
Active Aeroelastic Wing (AAW)
facet_what
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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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November, 2002
facet_when
November, 2002
facet_when
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facet_when:
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March, 2005
facet_when
March, 2005
facet_when
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facet_when:
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November 15, 2002
facet_when
November 15, 2002
facet_when
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facet_when_year:
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2002
facet_when_year
2002
facet_when_year
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facet_when_year:
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2005
facet_when_year
2005
facet_when_year
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Photo Number:
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EC02-0264-19
Photo_Number
EC02-0264-19
Photo Number
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UID:
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SPD-DRYDEN-EC02-0264 -19
UID
SPD-DRYDEN-EC02-0264 -19
UID
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original url:
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original_url
original url
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