data collection and storage.

[Bruce Plecan]

Reading, testing props is a real black art.
I do know that some of the guys paint them up with stuff and then read how
the "paint" gets washed off.  All done in private testing.
Cavitating props will even erode them, quickly.
If you serious about all this, I'd hit the biggest library possible, and get
anything about props there is (both air and water).
Bruce





> Thanks a lot for all suggestions.My problem is that I am not able to say
> this suggestion is better than this.....its a little above my head ,
please
> try to expaine like you where trying to tell a 10year old.....
> if you got the time...
> The first races we got 5 and 6 places ,did a owerhaul on the engine ,a 15
> hp Yamaha,worked on tilt angles ,this summer we straightened out the
buttom
> and made sharp edges to the straiks.Did some
> 4places in the first day of a race in Sandefjord 2 weeks ago, next day we
> borrowed a propeller from a competitor, The boat got away like all other
> stod still......2place first heat 1 place 2 heat....WOW.
> That was fun! Wery difficult to give that propeller back...how much..???do
> you want for it??
> The propeller did not give any more top speed just better accleration,Need
> to know more about propellers and need some good tools to measure the
> difference in real life....not forgetting to have full control on the
> engine combustion.
> Any who can say :this is the easiest ,best way of logging the datas?
> thanks
> Espen
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