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Twins or Triplets?

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Old 06-04-2006, 09:01 AM
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Default Twins or Triplets?

While at the Miami boat show a dealer told me that his boat with Triple engines not only ran faster but was more economical to run. He stated that at cruising speed the triple engine boat was 10% more fuel efficient than a twin engine boat of the same size..
I do understand the theory behind what he is saying the triple engines wont be working as hard, but I can not see it making up the difference of an extra engine.
Any opinions or real life experience
lets say a 47 fountain twin 525's against one with the same power but 3 engines..
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Old 06-04-2006, 09:49 AM
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Default Re: Twins or Triplets?

a 47 Foutain with twin 525s is not going to break 75, but it may break a drive every so often. Besides adding an extra 525 HP, the 3rd drive takes a lot of the load off the other two and it gives you the opportunity to get home on plain in case you lose one.
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Old 06-04-2006, 06:38 PM
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Default Re: Twins or Triplets?

I understand that but he stated that it would burn less fuel at cruizing speeds 3400 - 3600 rpm I just dont think that it is going to take off that much of a load I could be wrong I have been ONCE before
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Old 06-04-2006, 08:02 PM
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Default Re: Twins or Triplets?

He's wrong. Ask anyone with a single vs twins in the same hull. Not only does three engines idling take 33% more fuel, the same thing happens at speed, just not 33% more. There is also the added weight and drag of the third combo. If the price of fuel is that important vs speed you should not even consider the triple. The insurance on triples vs twins, (500 prop shaft hp or less each), is more than triple the expense. When I was shopping Black Thunders, insurance was $800 vs $3600 best quote.
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Old 06-04-2006, 10:47 PM
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Default Re: Twins or Triplets?

One of the mags did a test of twins vs trips verados and found the same results. Dont think it's the same for 525's though.
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Old 06-04-2006, 11:38 PM
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Default Re: Twins or Triplets?

Quote:
Originally Posted by oblvnxprs
I understand that but he stated that it would burn less fuel at cruizing speeds 3400 - 3600 rpm I just dont think that it is going to take off that much of a load I could be wrong I have been ONCE before
I can't see three 525's vs. two 525's being more fuel efficient any way you slice it.

All though I can see 3 525's being faster.
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Old 06-05-2006, 11:26 PM
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Default Re: Twins or Triplets?

Boston am I understanding you correctly 3 verados was better than 2
Raticle funny you should mention BT because that is who it was !
I got into a little debate with them on it and they were addimit about it so who am I to disagree
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