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Aerodynamic characteristics of a 1/6-scale model of the rotor systems research aircraft with the rotors removed. [wind tunnel tests of aircraft models
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Mineck, R. E. Hassell Jr., J. L. Freeman, C. R. |
| Copyright Year | 1976 |
| Description | A wind-tunnel investigation was conducted to refine the aerodynamic characteristics of the rotor systems research aircraft. For the investigation, a 1/6-scale model without a main rotor or a tail rotor was used. The model provided the capability for testing different engine nacelle sizes, engine pylon fairings, and tail configurations. The engine thrust effects were modeled by small engine simulators (fans). Data were obtained primarily over an angle-of-attack range from -13 deg to 13 deg at several values of sideslip. Stability characteristics and control effectiveness were investigated. The model with the scaled engine nacelles and the combination T-tail and lower horizontal tail displayed longitudinal and lateral-directional stability. Results show that by reducing the horizontal or vertical-tail span the longitudinal stability is decreased. Reducing the engine nacelle size increases the static stability of the model. Effective dihedral is essentially zero at 0 deg angle of attack and 0 deg wing incidence. |
| File Size | 8798439 |
| Page Count | 192 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19760021072 |
| Archival Resource Key | ark:/13960/t0ns5j71r |
| Language | English |
| Publisher Date | 1976-07-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Stability Tests Scale Models Rotors Engine Inlets Nacelles Aircraft Engines Sideslip Aircraft Models Jet Thrust Research Aircraft Wind Tunnel Tests Angle of Attack Aerodynamic Characteristics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
