Hull extension. to be or not to be? help!

[oops!]

I have a 68 or 69 sea ray i/o 19 foot. (vin code is worn)
i love the boat. it needs a new chance at life!
im about to do a total re fit including stringers and transom. as well as re designing the boats intreior and engine housing.
however im getting two foot itis!
im thinking of legnthening the hull 4 feet!
any one got advise?
should i .....
1. stop doing drugs and leave the legnth alone?
2. what happens to the cg of a planing hull when the hull is legnthend?
3. can u please just loan me a gun so i can nip out and shoot myself instead of thinking of cutting my boat?
4. where would be the best place to cut? or just add to transom?
5. has any one seen my meds? i havent taken them today!
6. what structural issues can come up if i do this and can they be resolved by a few more stringers?
if any one can offer sugg or info on legnthening i would really appreaceate it

 

[45Auto]

Re: Hull extension. to be or not to be? help!

You're out of your mind. Look harder for the drugs!!!!

 

[KCook]

Re: Hull extension. to be or not to be? help!

When you're not busy reloading, try here
"http://boatdesign.net/forums/forumdisplay.php?&f=11"

 

[Bondo]

Re: Hull extension. to be or not to be? help!

Ayuh,.......

1, 3,+ 5.............

 

[EricR]

Re: Hull extension. to be or not to be? help!

It can be done, I talked to a guy that did it with a center console work boat (used for blue crab trap hauling I think) who added three feet to it.

I have seen lots of transom extensions and stretches done to yachts of all kinds of construction before.

I'd research it first, see if it's really what you want! Just don't let 'em tell you it can't be done.

 

[Silvertip]

Re: Hull extension. to be or not to be? help!

Don't forget that you also need to extend the keel. Depending on how you do that, this joint may end up being the weak link. The keel should be the strongest part of the boat. At four feet ahead of the transom that places the joint about at the front of the engine so a portion of the weight of the drive system is at that location and at speed, waves pounding the bottom would also have the most force in that vicinity. I'd study some boat building books very carefully before going ahead with that project. Properly researched and engineered, there should be no surprises. Ships are routinely lengthened and shortened.

 

[stevens]

Re: Hull extension. to be or not to be? help!

Save yourself a lot of misery; sell the boat to someone who will appreciate it as it is, and go buy yourself a bigger boat. Or, buy a big enough boat so that you can use the old boat as a dinghy....

 

[oops!]

Re: Hull extension. to be or not to be? help!

thanks for the replies!
keep them coming.
Im so confused!
most people sound like they are trying to stop me from walking in front of an oncoming train!!
guess i gotta arm myself with more knowledge.
off to the library again.
if i do cut, i was thinking of a "stripped" kind of cut. like looking at a hard wood floor. so instead of a single line across the beam, the cut would be a number of zig zags allowing for lots of area for tge glass to bond to and also allowing lots of layers of glass to run stem to stern. as for the keel reinforcement. i might have to replace the whole thing any how. depends on what it looks like when i get the foam out.
its only 11am here and i think i need a drink!!!!

 

[salty87]

Re: Hull extension. to be or not to be? help!

making it an outboard will create some interior room. other than that, without a serious design background, yikes! commercial rigs can afford the cost, they just turn around and charge their clients.