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Old 25 June 2007, 01:02   #11
Country: Canada
Town: British Columbia
Make: Gemini
Length: 4m +
Engine: 40hp 2 str
Join Date: Oct 2003
Posts: 2,151
Please let me know how it goes. BTW, do you have a link to the site where you found the engine offset formula?

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Old 25 June 2007, 05:53   #12
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Country: UK - England
Town: Salcombe, Devon, UK
Boat name: BananaShark
Make: BananaShark
Length: 10m +
Engine: 2xYanmar 260 diesels
Join Date: Mar 2003
Posts: 4,225
Originally Posted by tkp333fl View Post
Thank you for the info.

I was thinking about adding a hydraulic steering cylinder with a hand lever valve on the tiller, and then when I want to turn, pull the lever, turn, and then release. It would then lock the motor in place.
How are the bungee cords set up? a photo would be great?

Thanks again.
The Thundercats have a hydrualic damping system with a valve which helps with the snatch as the boat re-enters the water - the bungee is tied from the tiller to the safety line on the tube to counteract the pull when going in a straight line - I would get in touch with Thundercats and ask if they will supply you with a damper -
Originally Posted by Zippy
When a boat looks that good who needs tubes!!!
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Old 26 June 2007, 20:17   #13
Country: USA
Town: Lynn Haven
Make: dux
Length: 3m +
Engine: mer 40 changed to 50
Join Date: Apr 2007
Posts: 5
I will be out of town for a while, but when I try it I will let you know if/how it works.

I found the post on this forum.

pete7 posted:
Nugent, the engine should be offset slightly to the Starboard by 1" per 100 hp so 1.35 max for you to counter the touque from the single prop which will tend to make the boat run on one side if the engine is central and the LWL short in comparison to the beam and draft. On a long LWL you can get away with a centre position. We recently moved my offset engine back onto the centre line (Ribtec 6.5m) and the handling is better.

I will also try a bungee and look into a damping system.

thanks you for all the help.

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