On 3/11/2014 9:30 AM, HanK wrote:
On 3/10/2014 9:24 PM, Charles Weitz wrote:

My brother gave me these two props and I've had them for 5 years and
finally decided to if these fit my boat.

Can someone decipher these for two me?

#1
(Printed on gear inside the prop)
Michigan Wheel
033072
14.25R15
(Outside)
Rapture

#2
(Printed on inside)
826074 B 24
(Outside)
Mercury Marine Tempest Plus
48-825864 23P




The Michigan is 15 pitch and the Mercury is 23 pitch. They are both
approximately the same diameter. The Michigan will give you more torque
and the Mercury will give you more speed.
What prop are you running now? Does your WOT rpm match the manufacturer
spec.?


In case the OP is not aware, the "pitch" is the theoretical distance the
boat will move with one (1) revolution of the prop. It assumes no slippage.