The Measurement of the Boeing 727 Trailing Vortex System Using the Tower Fly-By Technique.
Abstract
The results are presented of a series of low altitude (100-300 feet above ground level) flight tests performed at the National Aviation Facilities Experimental Center (NAFEC), Atlantic City, New Jersey, in which the trailing vortices of the Boeing 727 airplane were investigated, using a 140-foot tower instrumented with air velocity, direction, temperature, and humidity sensors. Flow visualization was also employed, using colored smoke streams and film records made. The airplane was tracked by the NAFEC Phototheodolite Facility. The data presented consists of plots of vortex tangential velocity distribution, peak tangential velocity as a function of time, airplane configuration, windspeed, and airplane altitude in proximity to the tower, vortex descent rates, lateral transport velocities, and specimen time histories of the velocities measured by individual sensors. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1974
- Accession Number
- AD0786569
Entities
People
- David Lawrence
- Leo J. Garodz
- Nelson Miller