relocating/replacing diesel tank/s to front - SailNet Community
 
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post #1 of 7 Old 09-13-2007 Thread Starter
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relocating/replacing diesel tank/s to front

My Oday 30 has the fuel tank behind the engine which is under the cockpit. I'm wondering if there is any reason to not (if there is room and I think there is) go under the Vee berth. Other then it being about 12 ft to the engine. The sloshing of the fuel could be a problem But I don't think so...

Rather then deal with cleaning the old tank. I'd go for 2 smaller tanks or a long skinny one. That should take about 125-200 lbs off the aft end of the boat and give me lots more storage back there. The fuel fill could be routed to the front but I would most likely install a new fill up there. The old fuel fill would be changed to a water fill for my port water bag under the main salon bunk.

I think too much!

Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club.
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post #2 of 7 Old 09-13-2007
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I'm not an engineer, by any means, but intuitively, I would think it would add too much weight up front. I can see your thinking, but things like tanks are placed with the weight distribution in mind.

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post #3 of 7 Old 09-13-2007
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Adding a lot weight to the bow will cause the boat to 'hobbyhorse' and plunge in to the backs of waves ..... adding any weight to the ends of a boat (rather than adding it near the center of rotation or near the center of mass) will cause a boat to be 'cranky', etc.

That said, I have a sailboat with LARGE bow fuel tank ... I just never fill it all the way. Such tanks have internal baffles to prevent the 'sloshing'.
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post #4 of 7 Old 09-13-2007 Thread Starter
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Hmmmm ok... there's only a 15 gal holding tank there now. I think the boat is light in the front. when motoring.. under sail it feels ok. thanks! (didn't really want to do that project anyway) lol

Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club.
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post #5 of 7 Old 09-14-2007
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Denise...

I would leave it as is.

Adding weight so far forward tends to make the ship nod a fair bit.
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post #6 of 7 Old 09-14-2007
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If you moved it, where would you move the holding tank to? Moving a holding tank is generally a bad idea... especially if the new location requires longer hoses.

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post #7 of 7 Old 09-14-2007 Thread Starter
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theres room with the holding tank there. But I agree with you all. I'll leave things as is. thanks!

Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club.
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