Hi Larry
I do not own a Sony DSLR , but I came across this site
http://www.fencecheck.com/forums/index. ... =25833.new,
http://www.fightercontrol.co.uk/forum/v ... 3&p=330139 and this one
http://www.dpreview.com/forums/thread/3116425, which generally gives you a concise view of some user experiences with the A-77 in aviation photography.
I did use Nikon pro gear for years before I eventually changed my system all the way to Canon instead. Your question came across my mind as well , but an in-depth search on the web looking for general information on bodies , Lenses and accesories did help me decide what body and lens combination suited me best for the purpose it was purchased.
Search on Youtube with "Sony A77" as the search string and poster "DigitalRev TV" and "Blunty3000".
Some links you may already have visited:
http://www.photographyblog.com/reviews/sony_a77_review/
http://sonya77.com/
http://www.youtube.com/watch?v=-0CejlQUux4
Good luck with your "quest" and enjoy your photography