The Yak went SPLAT!

 I was flying my freshly built Yak-54 foamie down the park, miles (ok, several hundred metres) from anything solid and upright.  Not long into the flying, during a gentle left turn the ailerons stopped working - not good with about 50% deflection and full-span ailerons!  Tried recovery with opposite rudder and a lot of elevator but no dice.  The damed thing went into an inverted spin and didn't recover.  Lucky for me, some kind farmer had left a line of star pickets with barbed wire to arrest the descent!!! Grrr.   Anyone got some glue???

Hrm - poor pilot...didn't stand a chance!

Another view of the cockpit of doom.

Barbed wire scar.

Outer right wing leading edge. This is a full-thickness tear, ie, the bottom of the wing looks like this too!

Where the speed controller was attached via cable-tie. Cable-tie still there....speed cotroller ejected in the wreckage!

The root of all evil - disconnected aileron servo when about 50% aileron input was on...recovery via rudder+elevator=uncontrolled inverted spin :(