Per Strommen,

Thanks for the information.............that explains a lot!. I've got literally hundreds of pictures of the Viggen. Among these I have three pictures from just about the same angle of a AJ-37, Sf-37 and JA-37 on takeoff. The AJ and SF (early versions) show the ailerons deflecting differently than the elevators. On the JA the are in unison............now I know why! I'm building an AJ, but maybe I'll keep it simple and lighter and just use two elevon servos.

Here's another one for you. I've never seen a picture with the speed brakes deployed. The MW54 is probably a little big for my Viggen. In order to combat residual thrust, I plan to use the speed brakes. I'm just curious as to what they look like deployed.

Regards,


John