boat speed

To Hunter 44DS owners: what is your typical cruising speed? My 2004 Hunter 44DS with a Maxprop has a cruising speed of 6.8 knots at 3000 rpm. I believe this is to too low and the prop may not be set correctly. Here are some details: Engine: Yanmar 4JH3E 55 hp @ 3800 rpm Prop: 3 blade Maxprop...

I have an old autohelm st50 speed display, which has the speed sensor/transducer connected to it. It uses a round version of the seatalk1 protocol. I want to connect this to my seatalkng backbone for the new autopilot I’m about to install. there exists a flat seatalk1 to seatalkng connector for...

i have a beneteau Oceanis400 1993 with a Perkins prima 50 and 17in max prop (3 blade feathering). At 2800 rpm, which is high, I can only motor at 5.8knots in flat water. I've adjusted the pitch to the highest recommended by the manufacturer. The engine gets to 2800 easily. Any ideas?

Hellowould be very he I am curious to know from other owners of a Yanmar 1GM what you get for max RPMs in neutral and in forward gear. If you have a boat around 27' that would be even more helpful. I have a Hunter 27 and get around 3200 max rpm in neutral and 2600-2700 max rpm in forward gear...