http://patft.uspto.gov/netacgi/nph-...,250,950.WKU.&OS=PN/5,250,950&RS=PN/5,250,950
Happy New Year & Keep up the Good Work
Avi
Happy New Year & Keep up the Good Work
Avi
. Of course, planes are always upgraded - avionics especially (there weren't so many MFD's back then...).