My apologies to the forum in general for reviving this dormant thread but it is directly relevant to my questions below.
Originally Posted by Lucky
On my Belize 43
I have the same engine
. The size is 16" diameter and 12" pitch. Most probably what you have as well even if your cat is longer than mine.
Out of curiosity how did you loose the prop? I lost
one in November last year and replaced it temporarily with a 16"x10" from a friends Mahe 36
. Works OK but doesn't give me tha speed the correct prop does.
Hapy lead free sailin!
43 (hull 110) came from the factory with 16x11 props. Two years ago after one propellor fell off, I installed a replacement 16x10 since that was all the Yanmar
dealer in Panama
could get on short notice. Last haulout, I replaced both props with 16x12's from Lamb's Yacht Center in Jacksonville
, FL. The service
rep there said that was the correct size. Since then, as expected my engines work harder and move the boat faster for the same engine RPM
. My owner's manual states that cruising speed is 2600 RPM
but I have not pushed the engines to that speed with the new props, prefering instead to motor
at about 2400 RPM.
My questions for you:
Are your 16x12 props original equipment
If so, what does your owner's manual specify for cruising speed?
I am not overly concerned about ruining my engines since I plan to continue using 2400 RPM for my "new" cruising speed (Applying the rule
of thumb of 200 RPM per inch of pitch mentioned elsewhere on this forum). I just would like to know what the correct propellor pitch is for my boat when I need to replace the propellors next time.
If anyone else can tell me the correct size props for a Belize
43 cat with Yanmar
3GMFC engines and SD20 saildrives, please chime in.