I am working on a Frankenstein's monster helleska with elements from the f-18, f14 , f-15 and viggen etc, the aircraft is still in progress but its already showing a load of problem. First the center of take-off is too high, second the aircraft rolls when doing pitch maneuvers. I have no knowledge in aerodynamics therefore want to consult you experienced builders.
http://www.simpleplanes.com/a/4g2uU0/Hellkeska-L-custom-2
Thanks in advanced.
@randomusername I think I can solve it now after a better understanding of com and col and cot. Thanks for your advice they have been really helpful. :)
@randomusername Hi, thanks for the feed back, what I meant was that when using the normal configuration the lift generated when taking off was way too high which resulted in continuous flip of the aircraft.
its only able to achieve semi stable flight in the delta wing configuration with the variable swap wing