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Experimental study of main rotor tip geometry and tail rotor interactions in hover. volume 2: run log and tabulated data
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Lombardi, J. Balch, D. T. |
| Copyright Year | 1985 |
| Description | A model scale hover test was conducted in the Sikorsky Aircraft Model Rotor hover Facility to identify and quantify the impact of the tail rotor on the demonstrated advantages of advanced geometry tip configurations. The existence of mutual interference between hovering main rotor and a tail rotor was acknowledged in the test. The test was conducted using the Basic Model Test Rig and two scaled main rotor systems, one representing a 1/5.727 scale UH-60A BLACK HAWK and the others a 1/4.71 scale S-76. Eight alternate rotor tip configurations were tested, 3 on the BLACK HAWK rotor and 6 on the S-76 rotor. Four of these tips were then selected for testing in close proximity to an operating tail rotor (operating in both tractor and pusher modes) to determine if the performance advantages that could be obtained from the use of advanced geometry tips in a main rotor only environment would still exist in the more complex flow field involving a tail rotor. This volume contains the test run log and tabulated data. |
| File Size | 14196861 |
| Page Count | 235 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850014035 |
| Archival Resource Key | ark:/13960/t8hf2qd7b |
| Language | English |
| Publisher Date | 1985-02-01 |
| Access Restriction | Open |
| Subject Keyword | Aeronautics (general) Geometry Tables Data Helicopter Tail Rotors Flow Distribution Aerodynamic Interference Tip Driven Rotors Hovering Data Reduction Rotary Wings 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 |
