In article ,
Thomas Borchert wrote:


How? If it were dirt, I might understand, but turf?

There's dirt under that grass. Even water can erode a prop, imagine
what dirt or small stones can do.

--
Dale L. Falk

There is nothing - absolutely nothing - half so much worth doing
as simply messing around with airplanes.

http://home.gci.net/~sncdfalk/flying.html