I swung the prop on G-BABE many times back in the 80s and 90d for the then owner when it was based at Sibson. The owner still flies out of Sibson as far as I know.
BABE did a fine job of patrolling the skies around Sibbo fending off attackers....
PS IIRC, BABE was used after John Taylor (the designer) was killed in a Titch to see what the spin characteristics were like. It was decided not to spin a Titch...