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>> Home > Forum > Boat Specific Chit Chat! > Chine Spray Rails
Chine Spray Rails
(244 views)
Author Message
Will-I-Am
(Sub-Lieutenant)





Forum Posts: 5
4th Sep 2018 18:16  
>> Permalink
mdlbt.com/45799

I have a modav Huntsman 31, which heels over quite a lot on turns even after slowing down. I was looking at the chine spray rails at the rear of the boat (see picture) they do not dip below the outgoing angle of the hull as shown on the plan (see picture). Would a triangular fillet located under the existing chine strip to simulate the plan for a length along the hull from the transom improve the heeling over in turns?


Attached Files - Click To View Large

Colin H.
(Fleet Admiral!)





Forum Posts: 423
4th Sep 2018 21:15  
>> Permalink
mdlbt.com/45806

Spray rails tend not stop heeling, on tight high speed turns they will dig in causing a heel, you could fit adjustable stabilisers on the lower transom like on racing boats. Cheers Colin.


Fair winds and calm waters,
COLIN.
RNinMunich
(Fleet Admiral!)





Forum Posts: 2415
4th Sep 2018 21:32  
>> Permalink
mdlbt.com/45810

Hi William,
First; it looks like the rail was not fitted according to plan🤔
However; my Sea Scout has no rails at all (Yet!) and as you have seen in your other thread on this topic she runs fine with the same profile rudder.
BUT; I notice that your rudder extends well below the prop. Mine only to about half way down the lower blade and she's very responsive with no sign of digging in.
Before messing up a nice hull I would trim the rudder back to at least the lowest extremity of the prop. Do another sea trial and if she still digs in a bit lop a bit more off, to about half way down the lower prop blade. 😲
Easier to mess with the rudder than with the hull 😉
Cheers, Doug 😎


Attached Files - Click To View Large


Young at heart - slightly older in other places 😉 Cheers Doug
Grant me the Serenity to accept things I can't change, - the Courage to change things that I can,
and the Wisdom to know the difference!