The main reason is that if the ignition is on (as it can be if you have an
open circuit P lead) and you move the prop, the engine can start - OK,
almost impossible with a 912, but on the Auster, you don't have to lean on
it to get it running - 50% of the time just gently pulling it over
compression is enough. I've even seen an engine start by moving the prop
enough to kick off the impulse coupling - about 1/2" at the tip. Impressive,
and it scared the "$%
&*@ out of the engineer....
M
> I was sitting on the loo this morning, reading my favorite aviation
> magazine when I read a warning about "never maneuvering an airplane around
> on the ground by pulling or pushing on the prop".
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