Bunk Board Length

JimS123

Fleet Admiral
Joined
Jul 27, 2007
Messages
8,234
Re: Bunk Board Length

So what "other guy" are you refering to? What constitues a puter hack?

Guess on the other side of the Great Lakes they do it differently. Yes I have seen what you describe with the very large boats only they are using Styrofoam instead of Concrete blocks.

Guess my next question to you then is in a previous post you refered to roller trailers over bunks and that a keel roller should be placed at the end under the transom. How would you do this with say a Spartan, Calkins or EZLoader where the end wobble rollers extend well past the end of the trailer bed?

Sorry if I wasn't crystal clear.

There are basically two opposing views on the subject. I gave my opinion, and its based on 45 years of trailering, learning from the old timers that have been operating marinas for longer than me, and also making mistakes that ruined a hull in the process. My reference to the "other guy" is anyone that shares the opposing view.

A "Puter Hack" by my definition is someone that hacks into computers and leaves a virus that will harm other people's computers, for no good reason other than being malicious. That's a loose definition and could also be someone that knowingly posts wrong answers on a forum, just to laugh knowing that someone will eventually believe it and do it. The reference was made to indicate that my motivation was to help people.

Boy, all this splaining to do is making me weary....LOL. You did understand what a toobafore is didn't you? Oh, and yes, some marinas use foam blocks. The operative phrase was where they put them.

The most common, simpliest and overall best trailer setup is a series of keel rollers to hold the weight of the boat, accompanied by a set of Bunks (roller or padded) to keep the boat level. Just like the big boys do in the marine yard. A true "EZLOader is a different animal. The end wobble rollers should still be placed right at the transom, though in this case you won't have a keel roller. But since this setup gently cradles the hull all over, it works just as well.

Two caviats - there needs to be enough rollers so that no one roller carries an excessive load. Also, it needs to be adjusted so that each roller can be turned by hand, to prove that its balanced right. My current family boat is set up that way and the hull is as true as it was when it left the factory.
 

emoney

Commander
Joined
Jul 19, 2010
Messages
2,551
Re: Bunk Board Length

I've always thought it was proper to have the bunks extending at least to the transom because of the downward pressure of the outboard. The displacement of weight is, of course, much different on the "trailer" than on the water, as the hull design exerts that pressure more evenly. Without the benefit of water, however, you risk eventually the possibility of the transom sagging. Look at the way sailboats are both trailerd and stored, with the keel being supported practically first, then the balance of the hull evenly distributed, since the keel, in proportion, is the heaviest "singular area" of the vessel. When it comes to a power boat, that would mean the transom would deserve the same attention. If nothing else, it definitely can't hurt the boat, whereas the possibility does exist the other way. Why run the risk?
 
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