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A suspended anemometer system for measuring true airspeed on low-speed airplanes
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Kershner, D. D. |
| Copyright Year | 1977 |
| Description | A suspended anemometer system for calibrating pitot-static systems on low speed research airplanes is described. The anemometer measures true airspeed when suspended beneath the airplane on a long cable in regions of undisturbed air. The electrical output of the propeller driven tachometer is a sine wave, the frequency of which is proportional to true airspeed. The anemometer measures true airspeed over a range from 20 to 60 m/sec at altitudes to 3000 m, with an accuracy of + or - 0.5 percent of full scale range. This accuracy is exclusive of errors in the recording system. The stability of the suspended system was investigated and was found adequate in the airspeed range. For the purpose of determining the location of the anemometer relative to the airplane, a method is given for calculating the shape assumed by the deployed cable. |
| File Size | 3366822 |
| Page Count | 31 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770026213 |
| Archival Resource Key | ark:/13960/t5m95137w |
| Language | English |
| Publisher Date | 1977-10-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Instrumentation Airspeed Flight Instruments Suspending Hanging Anemometers Low Speed Subsonic Aircraft 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 |
