NTL Record

Title Measurement of Aircraft Wakes at 250-Meter Altitude With a 10.6-Micron CW Laser Doppler Velocimeter
Record ID 62547
Personal Name
Creator		 Burnham, D. C.; Hallock, J N; McWilliams, I.; Fantasia, J. F.; Winston, B.
Source 6p. in various pagings; Electro-Optics Laser 78 Conference, Boston, MA
Corporate Creator John A. Volpe National Transportation Systems Center (U.S.)
Publisher John A. Volpe National Transportation Systems Center (U.S.)
Publication Date 19780000
Language English
Abstract The use of a CW laser Doppler velocimeter (LDV) to study aircraft wake vortices began in 1969 (Ref. 1). This early development of the techniques culminated in measurements on wakes of landing aircraft at the John F. Kennedy International Airport in 1974 and 1975 (Ref. 2). These measurements involved aircraft at altitudes belwo 100 meters. In late 1975, a similar LDV system was used to measure wake velocity profiles from aircraft at altitudes up to 250 meters (Ref. 3). Based on this work, the Transportation Systems Center (TSC), under the sponsorship of the Federal Aviation Administration, developed a new scan pattern (Ref 4.) which yields good high-altitude vortex data, and is being used to collect data on the wakes of aircraft landing at Chicago's O'Hare International Airport.
Rosap ID dot:32567
Rosap URL https://rosap.ntl.bts.gov/view/dot/32567
TRT Terms Wakes; Aircraft; Laser doppler velocimeters; Measurement; Altitude
Classification NTL - AVIATION - AVIATION;
NTL - AVIATION - Air Traffic Control;
NTL - AVIATION - Airports and Facilities;
NTL - AVIATION - Aviation Safety/Airworthiness
Geographical
Coverage		 Chicago (Illinois); New York (New York); United States
Availability Volpe National Transportation Systems Center, Technical Reference Center
Resource type Tech Report
URL https://ntlrepository.blob.core.windows.net/lib/62000/62500/62547/1978_MeasurementsOfAircraftWakesAt250MeterAltitudeWithA10.6MicronCWLaserDopplerVelocimeter.pdf
Format PDF
Database NTL Digital Repository