Hi all,
I got a Weston Uk Tigershark delta for Christmas. Its basically a flat sheet of light ply with a fus' and a fin (no rudder). I set up the CofG, lateral balance, elevons, etc as specified in the manual. The first flight was pretty scary, as the controls were pretty unresponsive at low speed, and very sensitive at high speed - it needed a bit of right trim to get it flying level.
Putting it into a loop resulted in a skew off to the left - I think this was because the left aileron had slightly more travel than the right after setting the trim (should be able to fix this on the TX).
However, the second flight was more horrific, I put the nose up and let it go into a stall. One wing and the nose dropped, it then proceeded to pirouette with the whole wing rotating around the nose (a bit like a flat spin, but with the nose down). Nothing I did seemed to make any difference to the spin, and eventually I ran out of airspace and just shut the motor and let it crash.
Amazingly, it landed in mud and only the prop broke, but I am now too scared to fly it again.
Is this what flat sheet deltas are meant to do, or have I got the set-up wrong ?
Is there any way from recovering from said spin ?
I look forward to any advice or anecdotes on this subject.
Best regards to all,
Dorset