Aircraft Wake Vortex Takeoff Tests at O'Hara International Airport

reportActive / Technical Report | Accession Number: ADA283828 | Open PDF

Abstract:

Three wake vortex measurement systems anemometer, acoustic doppler, and laser doppler were used to collect wake vortex data from aircraft departing Runway 22L at Chicagos OHare Airport for nine months in 1980. The data were analyzed to determine vortex decay and vortex transport probabilities. The results support the classification of all B-707 and DC-8 aircraft in the large wake vortex class. The acoustic doppler system was found to be significantly more sensitive than the ground anemometer system to vortices transported long distances laterally by a crosswind. The most efficient lateral transport was noted for crosswinds greater than seven knots. The horizontal and vertical ground wind signatures of a wake vortex are compared.

Author(s):
Yarmus, J. ; Burnham, D. ; Wright, A. ; Talbot, T.
Author Organization(s):
JOHN A VOLPE NATIONAL TRANSPORTATION SYSTEMS CENTER CAMBRIDGE MA
Descriptive Note:
Final rept. Feb-May 1992,
Pagination:
0088

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release, Document Partially Illegible
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited. Document Partially Illegible.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
DOT-VNTSC-FAA-94-12, DOT/FAA/RD-94-25
Monitor Series:
94-25, DOT/FAA/RD
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_JCA_4.1.2_Sustain the Force; JCA_4.1_Deployment and Distribution; JCA_2.2.1_Signals Collection; JCA_2.2_Collection; JCA_5.2_Understand; JCA_5.2.3_Share Knowledge and Situational Awareness; JCA_4.5.4_Requirements Definition; JCA_4.5_Operational Contract Support
Modernization Areas:
Fully Networked C3
Communities of Interest:
Air Platforms
Descriptor(s):
*COMMERCIAL AVIATION, *AVIATION SAFETY, *CROSSWINDS, MEASUREMENT, AIRCRAFT, WIND, WAKE, SIGNATURES, RUNWAYS, ANEMOMETERS, WIND STRESS, DECAY, AIRPORTS, DOPPLER SYSTEMS, WIND SHEAR, TRANSPORT, VORTICES, LASERS
Field(s)/Group(s):
Terminal Flight Facilities, Commercial and General Aviation, Meteorology, Safety Engineering, Test Facilities, Equipment and Methods, Fluid Mechanics
Keyword(s):
WAVE VORTEX, VORTEX DECAY, VORTEX LATERAL TRANSPORT, ACOUSTIC DOPPLERS, LASER DOPPLERS, B 707 AIRCRAFT, DC 8 AIRCRAFT, O HARE AIRPORT(ILLINOIS)
Report Date:
1994 Aug 01