recently purchased a hunnter 30, 1979 with yanmar ysm12 engine.
prop was replaced with a 3 blade 14/12 prop when the folding prop fell off.
max speed under power is 5 mph but sailing i get 7 -8 mph.
Is this too large a prop for this engine?
Rpms seem low under a load.
I have the same year boat and motor. That is the best speed I get with the motor running.
i read somewhere in these forums that if you can't reach max rpm (or at least 80% max at WOT) under load, your prop is either too large or over pitch.
|All times are GMT -4. The time now is 06:29 AM.|
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
(c) Marine.com LLC 2000-2012