They have twin vertical stabs because supersonic airplanes need lots of
vertical surface area, especially if the vertical surface is not as far back
as you might like to put it. with two engines mounted way back and all
their stuff it is hard to mount the vertical stabs further back. The easy
way to get it is to have two tails.

Tom Inglima


"gregfarr" wrote in message
...
On Fri, 09 Mar 2007 22:19:12 GMT, (Stas) wrote:


To anyone that knows. a couple questions; these aircraft the Su-27,
30, 33, 35 are either copies of our planes or it's just the natural
way jets much evolve. Did they copy? 2. they seem to have a lot of
twin tail models, does one really need that many, or were they not
good enough, so they had to keep trying...
These are beautiful images.

Greg
http://gregsplace.50megs.com
http://www.picturetrail.com/fugitive1