What size Prop?

[rude70]

I have an Evinrude 70HP on an old 4.2m 14.5ft fibreglass speed boat which is quite lite.
What size/pitch prop is suitable for towing a donought / general run about?

 

[Bondo]

Re: What size Prop?

Ayuh,....

Please go back and READ the "Read This First" thread at the top of this forum,...

Your question is Unanswerable......