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Low-speed wind-tunnel investigation of the stability and control characteristics of a series of flying wings with sweep angles of 50 deg
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Fears, Scott P. Moul, Thomas M. Ross, Holly M. |
| Copyright Year | 1995 |
| Description | A wind-tunnel investigation was conducted in the Langley 12-Foot Low-Speed Tunnel to study the low-speed stability and control characteristics of a series of four flying wings over an extended range of angle of attack (-8 deg to 48 deg). Because of the current emphasis on reducing the radar cross section (RCS) of new military aircraft, the planform of each wing was composed of lines swept at a relatively high angle of 50 deg, and all the trailing-edge lines were aligned with one of the two leading edges. Three arrow planforms with different aspect ratios and one diamond planform were tested. The models incorporated leading-edge flaps for improved longitudinal characteristics and lateral stability and had trailing-edge flaps in three segments that were deflected differentially for roll control, symmetrically for pitch control, and in a split fashion for yaw control. Three top body widths and two sizes of twin vertical tails were also tested on each model. A large aerodynamic database was compiled that could be used to evaluate some of the trade-offs involved in the design of a configuration with a reduced RCS and good flight dynamic characteristics. |
| File Size | 14382383 |
| Page Count | 150 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19950023805 |
| Archival Resource Key | ark:/13960/t3zs7p43d |
| Language | English |
| Publisher Date | 1995-06-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Design, Testing And Performance Tail Assemblies Sweep Angle Flight Stability Tests Leading Edge Flaps Radar Cross Sections Low Speed Lateral Stability Aircraft Design Flight Control Aerodynamic Stability Aspect Ratio Yaw Data Bases Wind Tunnel Tests Angle of Attack Trailing Edge Flaps Lateral Control Planforms Longitudinal Stability Pitch Inclination Flight Characteristics Stabilizers Fluid Dynamics Trailing Edges Wing Profiles Leading Edges Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
