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NASA Meatball NASA Dryden F-18 Systems Research Aircraft (SRA) banner
F-18 SRA closeup of nose cap showing new flush air data system sensor holes F-18 SRA closeup of nose cap showing new flush air data system sensor holes

Photo Number: EC97-43936-6
Photo Date: Mar 1997

Formats: 362x480 JPEG Image (42 KBytes)
773x1024 JPEG Image (241 KBytes)
2400x3180 JPEG Image (6,570 KBytes)

Description: The small numbers on the nose of this F-18 aircraft at NASA's Dryden Flight Research Center, Edwards, California, show the locations of 11 tiny holes which were an integral part of a new air data system installed on the aircraft. The Real-Time Flush Air Data Sensing system measured the speed and direction of the airflow past the aircraft and its altitude, similar to standard air data systems. It incorporated flush-mounted pressure taps, miniature transducers and an advanced research computer to give pilots more accurate information than standard systems employing external probes could provide.

Developed by Dryden researchers in cooperation with Honeywell's Research and Technology Center, Minneapolis, Minnesota, the system was flight tested on Dryden's Systems Research Aircraft (SRA), and was then used as a precise reference for other air data systems later evaluated on the modified F-18.


Keywords: F-18; F/A-18; SRA; Systems Research Aircraft; Real-Time Flush Air Data Sensing; RTFADS; Honeywell; speed and direction sensing


Last Modified: February 6, 2002
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