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Old 28-11-2016, 21:41   #1
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SD20, 2 or 3 blade?

I was going to get my spare aluminum 3 blade prop "rehubbed" until I found it was $90 and that seemed a poor investment for a well used and slightly corrolded 3 blade prop. I am running twin
SD20s with 2GM20 engines on a 12,000 cat. I understand they originally came with 2 blade props, mine had 3 blade when purchased.. I have 1 new and 1 well used plus the spare which has 1/2 the splines worn off. Already headed south and will be ready to cross to the Bahamas in 2 weeks. What are my best options for a spare propellor?
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Old 29-11-2016, 03:46   #2
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Re: SD20, 2 or 3 blade?

We carry a 2 bladed but our sd20's are equipped with them. Our boat empty weighs 12000. So we're about 17000lbs loaded. It be curious your performance numbers motoring with the 3 bladed props. Also heading to the bahamas Dec 12ish from Tampa area.
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Old 29-11-2016, 03:57   #3
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Re: SD20, 2 or 3 blade?

Quote:
Originally Posted by Dulcesuenos View Post
We carry a 2 bladed but our sd20's are equipped with them. Our boat empty weighs 12000. So we're about 17000lbs loaded. It be curious your performance numbers motoring with the 3 bladed props. Also heading to the bahamas Dec 12ish from Tampa area.
Motoring will be better. Sailing will be worse
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