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Old 11 January 2004, 16:07   #1
Country: UK - Wales
Town: Pembrokeshire
Boat name: Pendragon
Make: Ribcraft
Length: 6m +
Engine: 200 suzuki
Join Date: Oct 2003
Posts: 85
Twin engine handling

I have posted threads and read others on performance / economy of Twin set up's v single, but my question is:

handling, is there much difference ? Close quarter manouevring is better I believe, but what about at speed and dare I say it when you land after taking some air.

I will be mostly cruising, so top end speed is not the major factor, safety is, hence twin set up.

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Old 11 January 2004, 18:50   #2
Country: Finland
Town: Tampere
Make: Atlantic 21, Avon SR4.0
Length: 6,9 m
Engine: Mercury F60 EFI x2
Join Date: Dec 2003
Posts: 117

I'd say that there's no major difference. The difference is merely depending on the boat than engine installation. Taking air is the same, no major difference. One Yamaha dealer said me once that their duoprop special version Yamaha 150 did cause some safety problems after landing due two counter props in one shaft, but if we speak about ordinary OBs, you don't have to worry.

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Old 12 January 2004, 05:13   #3
Jono's Avatar
Country: UK - England
Town: Over here
Boat name: S.S. Nobstick
Make: Three Wise Monkeys
Length: 3m +
Engine: 44lbs of thrust....
Join Date: Nov 2003
Posts: 2,127
I looked at twin installation on the grounds that if one dies I can still come home on the other at reasonable speed. Then someone with an awful lot of experience politely asked if I had any idea how a twin set-up handles on one engine? I ended up ordering one big single and an auxilliary... (not from the guy who gave me the advice by the way!)
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Old 12 January 2004, 05:36   #4
Country: UK - Wales
Boat name: tbc
Make: Ribcraft (on order)
Length: 7m
Join Date: Aug 2003
Posts: 27
So how does the boat handle on 1 engine ?
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Old 12 January 2004, 05:49   #5
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Country: UK - Isle of Man
Town: Peel, IOM
Length: no boat
Join Date: Nov 2000
Posts: 2,457
There are some knowledgeable posters on here who can tell you definatively.
In essence, I understand that you place the engines as far apart as possible for handling-esp. at low speed, but close together if racing.
The racing boys can tell you much more about one engine failing, but I assume this is only a "get you home" anyway.
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