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Old 27 November 2006, 12:34   #11
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Country: UK - Scotland
Town: Aberdeenshire
Boat name: Kikican
Make: Vipermax 7
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Northcraft

Its a 5.5 metre. I think its the widebody version - plenty of room for the twin yamaha's. Chine walked like mad when I first got it and had major problems getting the height right. Always seemed to create major spray from the anti-ventilation plate (always one side too deep one side too shallow). I got a boat builder to add two wedges to the hull directly in front of each engine to make the transom flat immediately before each engine. They taper into the hull about 500 mm ahead. Now is absolutely rock steady on the plane and absolutely no spray. No noticable drag effects.
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Old 27 November 2006, 12:47   #12
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Originally Posted by Under the Thumb View Post
Mine's a 1993 5.5m widebody. The 150 is probably overkill, although the transom plate says it is rated for a 175!

We had 54Kts out of her with 3 up last time out on the River Thames, but it chinewalks like hell. Its better cruising at 40-45Kts.



I love my Northcraft, What is yours Downhilldai

Will
Looks a rite larf!
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Old 27 November 2006, 14:18   #13
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Wedges?

Richard,

Do you mean that the wedges make the planing pad larger?

Could you post a photo of the modification you have had done, i would like to try and cure my chine walking. I am pretty sure that it walks because there is so little boat in the water at speed ( see the photo ) I dont know if some trim tabs or something would help.
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Old 27 November 2006, 14:31   #14
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Originally Posted by Under the Thumb View Post
Richard,

Do you mean that the wedges make the planing pad larger?

Could you post a photo of the modification you have had done, i would like to try and cure my chine walking. I am pretty sure that it walks because there is so little boat in the water at speed ( see the photo ) I dont know if some trim tabs or something would help.
Little I think you mean no boat in the water
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Old 27 November 2006, 14:32   #15
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There's a bit of skeg and some cav plate
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Old 28 November 2006, 14:39   #16
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Wedges

They make a small horizontal section either side of the keel on which to plane I guess. I'll get some photos this weekend when its light - the day is pretty short up here this time of year. I had to play around with the position of the trailer rollers a bit to get them not to rub.
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