My apologies to the forum in general for reviving this dormant thread but it is directly relevant to my questions below.
Quote:
Originally Posted by Lucky
Hi there,
On my Belize 43 I have the same engine and saildrive. 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!
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Lucky,
My
Belize 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.