I would think the big issue is lack of water intake and over-revving.
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"j" ganz @@
www.sailnow.com
"Bobsprit" wrote in message
...
Here's a question that came up over dinner at my club:
When a small sailboat is at sea and the stern is lifted clear of the
water,
what risks are there to an engine due to prop spinning free of the water?
RB