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Old 22 June 2005, 21:06   #1
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Country: Cyprus
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Make: novamarine
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single or twin on 7m rib?

what would you install on 7m rib ? single 200hp four stroke or twin 115 fourstroke?
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Old 22 June 2005, 22:26   #2
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Single, unless you need the safety that a twin installation offers.

Lots of information if you do a search.
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Old 23 June 2005, 07:48   #3
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Twin........
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Old 23 June 2005, 08:20   #4
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Single for speed.
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Old 23 June 2005, 09:06   #5
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Single for less weight!
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Old 23 June 2005, 10:53   #6
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Twin

With independent batteries and fuel tanks.....if you need one take two
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Old 23 June 2005, 11:13   #7
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I have twin yamaha 4 stroke 115's on the back of my 7.5 tornado.. altho its a lot of horse power I only get about 40-42 knots... so if its speed you are after, I'd say go with a single engine as other 7 meter ish rib get better acceleration/top speed than mine - i.e Richard's Blue ICE and Rouge Waves Scorpian.

However if its safety you want, two engines is very nice, I have two completely seperate systems - 2 fuel tanks, 2 batteries, 2 fuel filters, 2 ignitions... so if a failure was to happen (like when I had water in one of my fuel tanks and the engine wouldnt start) you can still get home safely without having to call the coast guard etc.
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Old 23 June 2005, 13:17   #8
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Twins......but I'd go two stroke for the power snap.

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Old 23 June 2005, 13:29   #9
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twin 175 optimaxes... mmmmm
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Old 23 June 2005, 13:41   #10
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Quote:
Originally Posted by benc
I have twin yamaha 4 stroke 115's on the back of my 7.5 tornado.. .
looked good on the medina last night!

Paul
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Old 23 June 2005, 14:20   #11
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Hehe, yeah your boat is looking good to

Will have to meet up properly sometime in the near future.

Two engines at low revs have good power to... at 6 knots I seem to get a lot more push, ideal for towing and manuevering (however you spell it).
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Old 23 June 2005, 16:05   #12
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Quote:
Originally Posted by benc
Hehe, yeah your boat is looking good to

Will have to meet up properly sometime in the near future.
Cool! We're out a fair bit

Quote:
Two engines at low revs have good power to... at 6 knots I seem to get a lot more push, ideal for towing and manuevering (however you spell it).
Nice to have twins to rely on

Us
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