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Old 18 November 2003, 06:58   #1
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Biggest Outboard
Hi folks

Just a quickie...

What is the biggest outboard engine?

Keith Hart
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Old 18 November 2003, 08:18   #2
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If you mean in HP, and available to the general public, then I would say it's a Mercury Promax 300X, produces in excess of 320hp at the powerhead!
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Old 18 November 2003, 08:50   #3
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Jet Engine
http://rib.net/forum/showthread.php?...&highlight=jet

Or how about this,

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Old 18 November 2003, 08:57   #4
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Promax 300hp.
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Old 18 November 2003, 11:58   #5
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Don't tell me....Extreme sibbing?
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Old 18 November 2003, 12:04   #6
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SIB
Hi Keith (always one to ask an interesting question)Heart....

Whats the biggest SIB then ? (not a trick question).
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Old 18 November 2003, 12:40   #7
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Not sure about outboard, but how about this for an in-board
Attached Thumbnails
Click image for larger version Name: miss_america_x.jpg Views: 432 Size: 19.8 KB ID: 3558  
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Old 18 November 2003, 12:42   #8
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The biggest outboard I have ever seen exists in Bordeau at the Conservatiore(boat museum). It is about 11/12ft tall, diesel powered and goes on the back of a barge. Dam economical on the back of a rib, twin installation likely to make a sinker.
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Old 18 November 2003, 13:15   #9
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biggest Sib
The biggest SIB is probably one of the zodiac or avon military ones. The HD MkVI is 7ms
http://www.zodiacmilpro.com/product/industry/index.html
Jelly
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Old 18 November 2003, 17:01   #10
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there was an ex military inflatable for sale in buy a boat.

It had 3 foot diameter tubes! Dunno about its length though.
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