Correct Centaurus , As I said it was a once only demo before my RPPL test. Makes sense with the old tigers. With C152 it required a fare amount of speed somewhere up near 130kts to get prop to spin (Lots of forward stick
lots of altitude with precautions taken, potential ldg site etc.) A good use I thought of at time if ever I had a catastrophic failure of motor, re-seriously out of balance and threatening to tear engine mounts,loss of said engine resulting in serious aft CG situation which would not do good for spin recovery technique
With regard to using starter in flight. It could result in bendix unit hanging up causing starter to over spin into oblivion. Easily checked on ground after saving ones arse.
Regards
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