Max Prop Pitch

General Discussion
1

I own a 1982 33 Cat-Ketch with a Yanmar 3GM. Only getting 2400 RPM at WOT. What pitch is recommended for a 16-inch three blade Max Prop?

Thanks in advance.

Gregg

2

Gregg - same motor I think but different boat - my 1999 f35 Pedrick with 3gm30f shows this: running normal at 2600 rpm. Smooth….
RATIO 2.42-1

PROP DIAMETER 17"

PROP ANODES 63 mm

suggested settings 16˚

letter codes C K

3

Go on the web to https://pyiinc.com/ and you can get info there. Videos or call them. Jerome is super helpful. They make, repair, and service max props. Just had mine redone for my 1986 Freedom 36.
Dennis I’ll

4

Hey Greg, what all are u doing to the 33? I have one in galveston I’m going to bring to Florida in November. Once here i am looking forward to getting some work done in her. Do u have a fixed keel on yours?
Johnnie

5

Yes Johnnie fixed keel (deep version- the boat draws 6.5 feet).
I’ve hauled her at the yard down my street and having her soda blasted from toe rail to keel- her topsides were painted and it looks terrible. Last year I upgraded the house bank from 300AH AGM to 400 AH lithium. Adding 500 watts of solar after the blasting. How about you and your boat- centerboard?

G