VH-FTA Spinning accident
My apologies, the Chipmunk was of course RSP as RS_ was the standard serials for most RAC NSW aircraft. RCP was a Cessna 310 that I used to fly for SAATAS; old age in action!
Also replying to to the Mosquito type tail the airflow is coming very much from under the horizontal tailplane in a fully developed spin hence partially blanketing the forward set rudder. In aircraft such as the Pitts the rudder continues down below the elevators so is still exposed to the airflow despite the alarming attitudes this aircraft encounters. If I remember correctly the rotation did not stop until the nose started down, despite initial application of opposite rudder. I don't think they used to deliberately spin Mosquitos!