what are the pros and cons of triples versus double engines
12-08-2013 | 12:04 PM
#2
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Depends what your putting them on and are you talking outboard or inboard. In general the 3rd engine helps with acceleration and gives alittle more top speed but as a trade off there is more weight and increased fuel burn, not to mention the upfront cost for another engine. On outboard cats the third engine also take a beating being in the center of the tunnel.
12-08-2013 | 05:19 PM
#3
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From: Indianapolis, IN/ Punta Gorda, FL
We have a Donzi 43 ZR with triple 700's and love it but one major draw back is when the center drive is trimmed even slightly higher than the outer two, the tie bars pull the outer drives in and the props can literally hit each other. A smaller diameter prop on the center will help as well as more accurate drive trim indicators to be sure that all 3 drives are even at all times. This shouldn't be an issue on triple bravo configurations as the Maximus props are smaller diameter than cleaver props.
Obviously fuel burn is another drawback, the 700's burn 67 gallons per hour at wide open but acceleration and top end are improved so it's a trade off. Triple NXT & #6 drives looks pretty badass on the trailer and the rooster tail in the water.
[ATTACH=CONFIG]513893[/ATTACH]
[ATTACH=CONFIG]513894[/ATTACH]
Obviously fuel burn is another drawback, the 700's burn 67 gallons per hour at wide open but acceleration and top end are improved so it's a trade off. Triple NXT & #6 drives looks pretty badass on the trailer and the rooster tail in the water.
[ATTACH=CONFIG]513893[/ATTACH]
[ATTACH=CONFIG]513894[/ATTACH]
lol
12-09-2013 | 07:31 AM
#7
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From: Baltimore, MD
I have been told with inboard / outboards the 3rd engine is a waste for the most part and is about a 10 mph gain on top end, i have been told that if you stagger 2 motors you can almost can get the same amount of speed as you can out of 3 motors. i have a friend who has converted a 40 fountain from 3 engines to 2 staggered engines with relativeley the same hosrepower per engine so hopefully we will see soon.
12-09-2013 | 12:03 PM
#9
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From: Tortola, BVI
Not necessarily. My trip O/B PowerPlay could not plane on two engines. I don't know if it was because of the drag of the third "dead" engine (my set up didn't allow me to tilt one engine out of the water on its own).
12-09-2013 | 12:31 PM
#10
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