How to test before calling prop shop.

[Wobble]

I was wondering what is the ultimate collection of data to get before contacting a prop shop.

From what I see here.

Boat weight,
Hull type, Pad or step etc.
Motor HP and torque curve.
x dimension
drive type.
gps and rpm at wot
trim

anything else?

it would be nice to have a form we could fill, in maybe a pdf form we could print out and take with us.

thanks

[Badtoon]

Call Throttle Up and Julie or Matt will tell you what they need.

[throttleup]

The make and pitch of the propeller used for testing.
Gear Ratio.
Testing conditions; water and weather.
Load of boat: ie; fuel, people and gear.

SEE BELOW Hope this helps


Boat LOA_________Make_____________Model____________Year_____________
Power_____________________________
Number of Engines______________
Drives_________________Gear Ratio____________ Rotation__________&____________

Baseline Prop Make/Model__________________________________
Baseline Prop Size________________X_______________________
Baseline RPM____________________________________________
Baseline MPH____________________________________________

Test Prop #1 __________________________ Size__________Diameter X_________Pitch

3500 RPM@____________________MPH
4000 RPM@____________________MPH
4500 RPM@____________________MPH
4800 RPM@____________________MPH
4900 RPM@____________________MPH
5000RPM@____________________ MPH
5100 RPM@____________________MPH
5200 RPM@____________________MPH
5300 RPM@____________________MPH
5400 RPM@____________________MPH
5500 RPM@____________________MPH
5600 RPM@____________________MPH


Comments:____________________________________________________
____________________________________________________________
_____________________________________________________________
_____________________________________________________________

[Wobble]

Originally Posted by throttleup

The make and pitch of the propeller used for testing.
Gear Ratio.
Testing conditions; water and weather.
Load of boat: ie; fuel, people and gear.

SEE BELOW Hope this helps


Boat LOA_________Make_____________Model____________Year_____________
Power_____________________________
Number of Engines______________
Drives_________________Gear Ratio____________ Rotation__________&____________

Baseline Prop Make/Model__________________________________
Baseline Prop Size________________X_______________________
Baseline RPM____________________________________________
Baseline MPH____________________________________________

Test Prop #1 __________________________ Size__________Diameter X_________Pitch

3500 RPM@____________________MPH
4000 RPM@____________________MPH
4500 RPM@____________________MPH
4800 RPM@____________________MPH
4900 RPM@____________________MPH
5000RPM@____________________ MPH
5100 RPM@____________________MPH
5200 RPM@____________________MPH
5300 RPM@____________________MPH
5400 RPM@____________________MPH
5500 RPM@____________________MPH
5600 RPM@____________________MPH


Comments:____________________________________________________
____________________________________________________________
_____________________________________________________________
_____________________________________________________________

Thanks Julie,

exactly what I was looking for.

Be nice if Admin could keep this near top of forum

[throttleup]

No problem, anytime!

Julie