"Flemming Torp" fletopkanelbolle2rp.danmark wrote in message . ..

"Leanne" skrev i en meddelelse
...

"Flemming Torp" fletopkanelbolle2rp.danmark wrote in
message
. ..
My brother in law, and I have had a discussion of whether
it
is best - from a pure speed point of view (no
consideration
to the mechanics/oil/maintenance/gearbox etc. here ...)
whether you should let your "fixed three bladed
propeller"
run/turn or keep it fixed (like put into gear) when
sailing

I always put the transmission in reverse when sailing. I
don't
think that my Yanmar book says anything, but when I sailed
on a
friend's Cape Dory, he said to always do so due the
gearbox
that he had.

Leanne



So do I - when cruising, but that is not my point ...
The question is: (If I race for instance): Will I increase
the speed of the boat by letting the propeller turn without
resistance? Or should I stop it from turning?

--
Flemming Torp


It's a fact that a spinning prop creates far more drag
that a stopped prop.

CN