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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 60 deg
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Fears, Scott P. Moul, Thomas M. Foster, John V. Ross, Holly M. |
| Copyright Year | 1995 |
| Description | A wind tunnel investigation was conducted in the Langley 12-Foot Low-Speed Wind 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 of new military aircraft, the planform of each wing was composed of lines swept at a relatively high angle of 60 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 pitching-moment characteristics and lateral stability and had three sets of trailing-edge flaps that were deflected differentially for roll control, symmetrically for pitch control, and in a split fashion for yaw control. Top bodies of three widths and twin vertical tails of various sizes and locations 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 radar cross section and good flight dynamic characteristics. |
| File Size | 8546765 |
| Page Count | 158 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19960003382 |
| Archival Resource Key | ark:/13960/t53f9pm1t |
| Language | English |
| Publisher Date | 1995-08-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Design, Testing And Performance Low Speed Stability Tail Assemblies Pitching Moments Leading Edge Flaps Radar Cross Sections Lateral Stability Aircraft Design Tailless Aircraft Aspect Ratio Rolling Moments Sweptback Wings Yaw Flight Characteristics Directional Stability Tradeoffs Trailing Edges Wind Tunnel Tests Angle of Attack Trailing Edge Flaps 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 |
