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Old 01-22-2010, 02:46 PM
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Default How far can a boat extend off the back of a trailer?

Is there a point where too much of a boat hanging off the back is unsafe? Is there an industry standard IMO for this?
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Old 01-22-2010, 02:49 PM
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there is no law on it. The bunks have to extend past the boat so a hook does not develop and that boat looks ok.
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Old 01-22-2010, 02:50 PM
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Looks like the "back of the trailer" (the bunks) extend further than the boat. You are fine.
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Old 01-22-2010, 02:52 PM
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As long as the bunks go at least to the transom then its fine. The motor sticking further back is irrelevant since it would not help support the boat at all.
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Old 01-22-2010, 02:53 PM
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I believe 10% tongue wait is what your shooting for.10 to 13ish is what I've always heard
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Old 01-22-2010, 02:55 PM
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Thanks gang....I was just a little curious with the I-Beam ending and that wood going past approx. 3'.
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Old 01-22-2010, 03:01 PM
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Originally Posted by izalost View Post
Thanks gang....I was just a little curious with the I-Beam ending and that wood going past approx. 3'.
From the pic, I think I'd be a little concerned about that also

It appears that the trailer is way too short.

I have the same type of tandem I-Beam trailer and the bunks only extend a few inches beyond the frame. I'd check your tongue weight.

Does the trailer sway a lot when you tow it?
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Old 01-22-2010, 03:09 PM
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From the pic, I think I'd be a little concerned about that also

It appears that the trailer is way too short.
I'd check your tongue weight.

Does the trailer sway a lot when you tow it?
Boat hasn't been towed yet. I'm just looking out for a buddy who is negotiation to purchase. I wanted to get some educated opinions before I brought it up to him.
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Old 01-22-2010, 03:20 PM
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Don't do a transom transducer!!
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Old 01-22-2010, 03:22 PM
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I just went out to the barn and looked at mine. My bunks extend back 1.5' from the frame. It still looks like the trailer is small for the boat. I'd do some research on the trailer and make sure it's rated for the load. It really looks like a mismatched trailer that did not come with the boat when it was first purchased. It may be ok, but I'd tow the boat first to make sure it's not a problem. It looks like the winch post is all the way in the foreward position. You may not be able to open a pick-up tailgate with it hooked up.
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Old 01-22-2010, 03:30 PM
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Default The Calif reg in 1997

A while back we wanted to tow a long load through Calif. We asked and they told us the max allowable hang over the back of the trailer was not the issue. Calif said it was not the length over the back of the trailer, but from the rear axel of the trailer. The end of the load could not extent past half the distance from the rear axel of the trailer to the rear axle of the tow vehicle. Does that make sense?

If the back axel of the tow vechicel was 25 feet to the back axel of the trailer then the load could extend another 12.5 feet past the rear axel.

So they told me in 1997 in Calif. I wonder how much this has changed since.



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Old 01-22-2010, 03:43 PM
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Default Ok, I'll bite....

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Originally Posted by llord View Post
Don't do a transom transducer!!
Just so you know I'm not scared to derail my own thread

What's your beef with transom transducers? I've installed a lot with no problems. Is your suggestion a more liable thru - hull mount?
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Old 01-22-2010, 03:51 PM
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Never mind.....llord....you must be referring to the boards going past the transom and the damage that could occur to a transom mounted transducer. Thanks for the warning
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Old 01-22-2010, 03:52 PM
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torque, moment arm, force multiplier, pivot point, look them up...........I don't give a rat's behind what California law says, I'll stick with the laws of physics regarding rotational dynamics
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Old 01-22-2010, 03:56 PM
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What you are looking at is proof that wood costs less than aluminum. By using heavy bunks, the trailer builders often feel that even though the trailer frame has stopped well short of the transom, the cantilevered wood is capable of supporting the hull. In the case of the boat pictured in the thread, the wood should be heavy enough to do it.

But it is still a shortcut and done to save costs, not make a better trailer, since the wood will probably sag over time.
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Old 01-22-2010, 04:03 PM
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Quote:
Originally Posted by izalost View Post
Never mind.....llord....you must be referring to the boards going past the transom and the damage that could occur to a transom mounted transducer. Thanks for the warning
Yup..I didnt mean to derail the thread. But really if you use that trailer that way, one is transducer issues and 2nd is tab issues. I'd check the tongue weight but really bottom line is that trailer isn't right for that boat..period. No trailer sales person would ever "setup" a new trailer like that for a boat. The way boat sales are now I'm sure you could get another trailer that fits it better with little or zero more cost...Again didnt mean to derail thread...as it annoys me too!!
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Old 01-22-2010, 04:20 PM
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Quote:
Originally Posted by llord View Post
No trailer sales person would ever "setup" a new trailer like that for a boat. The way boat sales are now I'm sure you could get another trailer that fits it better with little or zero more cost.


Thanks for the heads up direction!
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Old 01-22-2010, 04:25 PM
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Quote:
Originally Posted by WhiteBucket View Post
From the pic, I think I'd be a little concerned about that also

It appears that the trailer is way too short.

I have the same type of tandem I-Beam trailer and the bunks only extend a few inches beyond the frame. I'd check your tongue weight.

Does the trailer sway a lot when you tow it?
You don't know wtf you're talking about.

How many bunk trailers have you actually seen?
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Old 01-22-2010, 04:35 PM
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Quote:
Originally Posted by kerno View Post
What you are looking at is proof that wood costs less than aluminum. By using heavy bunks, the trailer builders often feel that even though the trailer frame has stopped well short of the transom, the cantilevered wood is capable of supporting the hull ... But it is still a shortcut and done to save costs, not make a better trailer ...
Bingo!

The way I look at it is that the trailer frame is grossly undersized for the boat that's on it, but "works" because of the oversized timber (and cantilevered design) used by the trailer manufacturer to compensate. That way, the trailer's cost met the needs of the boat dealer who wants to sell boats and who had to put together a boat and trailer package that was affordable for the customer.
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Old 01-22-2010, 05:04 PM
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Quote:
Originally Posted by Pez Vela View Post
Bingo!

The way I look at it is that the trailer frame is grossly undersized for the boat that's on it, but "works" because of the oversized timber (and cantilevered design) used by the trailer manufacturer to compensate. That way, the trailer's cost met the needs of the boat dealer who wants to sell boats and who had to put together a boat and trailer package that was affordable for the customer.














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mronzo
Hey "Mr. Economist" These companies make BILLION$ and can certainly afford to pay workers more!
RedBank Steve
I'm anything but a racist. Why can't they hire a few AMERICANS here and there. Oh, that's right, they might have to pay them a living wage. Sorry about that.
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9 of the 10 hottest years for the entire planet have been in the last 10 years. Do the math, if you can.
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