I've uploaded a new version which incorporates the discussion of turn radius. It has a map showing the path of a 90 degree bank turn and others. Experimenting with the turns leads to a fairly small range of possibilities that can get the plane to the observed impact point, and the possible bank angles range from about 33 to about 41 degrees. The bank increments cannot be linear to get the plane to the observed impact point, which means something the crew was doing was having an effect. Very interesting.
The new link is
http://we.tl/B9288LJnjV and this is now the link that clicking the background will take you to.