Q. What's a propeller?
A. A machine for propelling an aircraft or boat, consisting of a
power-driven shaft with radiating blades that are placed so as to thrust air
or water in a desired direction when spinning.

Now why would the 250 hp be faster? It would seen to me that in order to go
faster the propeller would have turn faster, but that are not.


"Shortwave Sportfishing" wrote in message
...
On Sun, 26 Feb 2006 19:40:19 GMT, "Injam"
wrote:

Hello,

I'm trying to understand propellers.

What's a propeller?

If you have two identical boats, but the outboard horsepower ratings are
different. One boat has a 200 hp and the other a 250 hp. Both motors have
the same Gear Ratio. If the propellers are identical and the RPM of the
outboard is the same on each boat. Say 6000 RPM. Because of the weight
advantage will the 200-hp boat be faster than the 250 hp? I'm thinking
less
weight less slippage otherwise they would be going the same speed.

Identical boats, identical props, identical RPMs, it going to be the
more horsepower that wins the day.