[time-nuts] Crossing International Date line causes F-22 Jet Problems

Brooke Clarke brooke at pacific.net
Wed Apr 11 18:46:56 UTC 2007


Hi:

Not really a Y2K type problem but more related to the 360 deg change in 
longitude.  "When the fighters crossed the line, all of their computer systems 
went Tango Uniform - fuel subsystems, navigation, and some of the comms."

If the computer program is in the millions of lines and had this bug, what 
other bugs does it have?

http://www.defensetech.org/archives/cat_stray_trons.html
http://www.defensetech.org/archives/003315_comments.html

http://www.dailytech.com/article.aspx?newsid=6225

http://transcripts.cnn.com/TRANSCRIPTS/0702/24/tww.01.html
Aired February 24, 2007 - 19:00   ET
The F-22 story is after the second   (COMMERCIAL BREAK)

"ROBERTS: Twenty five years from development to deployment, the F-22 Raptor is 
the most advanced fighting machine in the air. But it was no match for a 
computer glitch that left six of them high above the Pacific Ocean, deaf, dumb 
and blind as they headed to their first deployment. So what happened?"

F-22 Software Risk Reduction - May 2000 Issue
Ada 83 will continue to be the primary language used on the F-22 (80-85 percent)
http://www.stsc.hill.af.mil/Crosstalk/2000/05/moody.html

Have Fun,

Brooke Clarke
-- 
w/Java http://www.PRC68.com
w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml
http://www.precisionclock.com





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