USAF AN/URT-44 PLBs
The USAF bought 17,000 URT-44 for $30M in 2009 and they were in service from 2011 - there was 8 years notice of the change to 406 MHz:
https://timeswampland.files.wordpres...n_urt44-ds.pdf
However, there have been a lot of failures and there are already plans to replace the URT-44:
Locator Beacons For Us Air Force Ejection Seats Failing At 'Unacceptable' Rate | Defense News | defensenews.com
http://www.af.mil/News/ArticleDispla...r-beacons.aspx
Last edited by RAFEngO74to09; 1st Jul 2014 at 15:22.