You replaced it with one that was identical. Try
replacing it with one that isn't old and brittle.
S.

"Bart Senior" wrote in
message
. net...
: 5 points (Impress me with your genius)
:
: You just bought a new boat and notice the prop
is old and brittle.
:
: You replace it with an identical prop. After
motoring around for a
: while you find the top speed of the boat is much
lower, estimated to
: be 2.5-3 knots and the prop seems to be
slipping.
:
: What is the most likely cause, explaination, and
cure?
:
: