Do big boats need to be tied at the transom?

SwampNut

Petty Officer 1st Class
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Jan 9, 2006
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Re: Do big boats need to be tied at the transom?

I'm pretty well convinced that the boat does need to be strapped down, but don't think we know enough to say what their weight rating needs to be. I'm going to go with the "biggest I can find at a normal store" and be done with it. However I am going to look at a truck stop for those huge ones that flatbed trailers use for their loads, as they seem possibly ideal as a gunwale strap. Could even double up.
 

tommays

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Jul 4, 2004
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Re: Do big boats need to be tied at the transom?

I use the BIG TRUCK ones on a lot of things they are dirt cheep even a name brand american made one is only about 30 dollars.<br /><br />You have to be carefull how tight you crank them they have a LOT more pull then anything at the boat store.<br /><br />Now if you go to the marine store and worry about stainless steel and such you will pay a LOT more<br /><br /><br />tommays
 

BillP

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Aug 10, 2002
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Re: Do big boats need to be tied at the transom?

Ok, I googled... DOT (CVSA guidelines)specs say the safe working load of the straps must be minimum of 1/2 the weight of the load.<br /><br />Most straps use SWL as 1/3 of breaking strength.<br /><br />15000lb boat = (2)3750 swl straps rated at 11250lbs breaking strength each. $15 each.<br /><br />The above numbers give no margin for normal wear and tear.<br /><br />SS7/16" dia U-bolt = 12000lbs pull strength.
 

tommays

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Re: Do big boats need to be tied at the transom?

I was just checking some straps and a Cheep 2" with a Ratchet handle has a 3300# safe working load<br /><br /><br />tommays
 

jlinder

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Re: Do big boats need to be tied at the transom?

BillP,<br />Thanks. That is what I was looking for. With a 4,000# boat I have 2,000# per strap, and that comes to a breaking strengh of 6,000# reccomended.<br /><br />Although to be honest, as it was noted earlier, at this point before the straps break I think the trailer and boat would be a single flying mess. But at lease I will know I did everything I could.
 

Silvertip

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Sep 22, 2003
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Re: Do big boats need to be tied at the transom?

That's the point Jack. Securing the boat is only helpful to a certain point. Beyond that everything is a crap-shoot. The point being without securing the boat, it and the trailer can part company under far less serious conditions than you might expect.
 

paulie0735

Chief Petty Officer
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Dec 6, 2005
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Re: Do big boats need to be tied at the transom?

The way I see it, its up to the owner, driver to ensure that every reasonable effort is made to make the boat and trailer combination safe for transport on the highway. It’s simply the right thing to do and the only way to rest easy knowing that you have done the right thing by all road users including yourself. Its a sad state of affairs when I read about people who use the same roads as our kids with an attitude that reflects a "I'm alright jack!, %@!& the rest of you" Sad, sad indeed!<br /><br />Upinsmoke, I like the way you think, I have never thought about having the strap under the reel on my winch, I’m going out to the shed right now and change it! Thanks for the tip, its that kind of thinking that makes us all a bit wiser.
 

Bondo

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Re: Do big boats need to be tied at the transom?

Originally posted by Reel Poor:<br />
Originally posted by SwampNut:<br /><br /> On the other hand, because the trailer is so light, there's only so much effort the strap will take before the trailer just starts to roll over anyway.
Swamp Nut....Thats the way I see it. <br />My boat weighs in at around 11,500 lbs, the trailer is around 2,300 lbs, for a grand total of about 14,000 lbs +/- loaded. This is a float on trailer, no rollers, (well two that support the bow) and the bunk boards are approximately 20 feet long. According to yall I would need what, two 6,000 lb straps, plus winch strap and bow safty chain? He**, one of these straps would probably lift (conservitively) two of my trailers. Ive seen boats, sized like mine and some larger, that have come off of trailers in my days also. But the tow vehicle nor the trailer were in any better shape than boat. All the accidents like this I have seen are results of rollover. Ill say, "IF" my boat is going to shift enough weight(with its low center of gravity) to rollover or come off my trailer during an evasive manuver, I would prefer it broke loose from any and all straps that may be holding the "TRAILER TO THE BOAT", and hopefully spare me and my tow vehicle. Also anyone else that may be in the vacinity. I dont see where stern straps on my rig will or can make it any safer than it is, as it is being towed now. I see a greater danger if it was all bound together. My trailer being bound to my boat is not going to stop my boat from leaving the road under those type situations. If 11,000 lbs is moving, 2,000lbs aint gonna stop it.<br /><br />I do see a need on small lighter boats, especially flat bottomed boats. Also boats on roller trailers.<br /><br />On another note, dont the 18 wheeler tractors have an emergency "trailer latch release", that releases the trailer from the tractor in an emergency to hopefully keep the driver from being injured or crushed by his cargo load in case of a horrific accident?
I'm Sure Glad I Don't get down to Mississippi very often,..........<br />With Your Thinking,..... It sounds like an Extremely Dangerous Place.........<br /><br />A "Tractor Protection Valve" is NOT an Automatic Trailer Unhooking device......<br /><br />What it Does do is,....<br />If by chance the Trailer should become Unhooked from the tow unit,....<br />It Applies the Trailer BRAKES,........ In order to Stop the trailer from Killing People.......<br /><br />I Can't Believe that you Think that a trucker can Just Jettison his Trailer/ Load,.... At Will....... :rolleyes: <br /><br />The "Idea" of All of this is,...........<br />Any,+ All loads placed on a Trailer,.. ANY Trailer....<br />MUST Be Secured to that Trailer in a way that the Load, BECOMES a Part of said Trailer........<br /><br />A Secured Load , on a Trailer that's Securely Hitched to a tow unit, is somewhat Controlable, Even in a Uncontroled situation,........<br /><br />You Don't have the Right,... Or even the Option of Getting Away from YOUR load, if or when YOU cause it to become Uncontrolable.............<br /><br />But,......<br />You DO have the Responsibility , to Yourself,+ the Rest of Mankind, to Ride it Out,....<br />While Praying for the Best,+ Doing All that is Possible to Avoid the Inoccents that Maybe in YOUR Path..................<br /><br />I Just Can't Believe the Total LACK of Common Sense that abounds in this Issue..................................... :rolleyes: <br /><br /><br />BTW,.............<br />I'm having abit of a Problem with the way you guys are figuring out How Heavy a Tie-down you'll be Needing,..............<br /><br />Tie-downs have Absolutely Nothing to do with the Weight of the Load on the Trailer..........<br /><br />Tie-downs SHOULD be Rated High enough to Withstand the Impact of the Load, Trying to Leave the Trailer............<br /><br />Notice a Lumber Hauler,.... He'll have Atleast 2 Chains for each 10' of load Length,... So, that would be 2 Chains to hold 4 units of 8',2X4s.....<br />That's about 300,000lbs of Restraining Power, to hold,... What,.??, Maybe a Ton or 3 of 2X4s......<br /><br />In Other Words,......<br />Use the Largest, Strongest Tie-downs as Possible.............<br />Just like a PFD,........<br />It's a Total Pain in the Arse,.........<br /><br />Till you Really Need 'em....................... ;)
 

SwampNut

Petty Officer 1st Class
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Re: Do big boats need to be tied at the transom?

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Silvertip

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Re: Do big boats need to be tied at the transom?

Paulie -- Regarding the winch strap. I don't understand what you mean by having the strap under the reel on your winch. Don't change anything until at least I'm clear on your setup. The winch strap should pass directly from the winch drum and then under the bow stop which is what your boat butts up against when loaded. This will be either a rubber "V-shaped" block or a roller. If your trailer has a small nylon roller beneath the bow stop, the strap should pass between the two. My Shorelander is set up that way. The small roller may or not be present on your rig. That roller provides the strap a place to rest on when loading the boat for a straighter pull.
 

BillP

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Re: Do big boats need to be tied at the transom?

Originally posted by Bondo:<br /><br />BTW,.............<br />I'm having abit of a Problem with the way you guys are figuring out How Heavy a Tie-down you'll be Needing,..............<br /><br />Tie-downs have Absolutely Nothing to do with the Weight of the Load on the Trailer..........<br /><br />Tie-downs SHOULD be Rated High enough to Withstand the Impact of the Load, Trying to Leave the Trailer............<br /><br />Notice a Lumber Hauler,.... He'll have Atleast 2 Chains for each 10' of load Length,... So, that would be 2 Chains to hold 4 units of 8',2X4s.....<br />That's about 300,000lbs of Restraining Power, to hold,... What,.??, Maybe a Ton or 3 of 2X4s......<br /><br />[/QB]
I'm not sure you meant it the way I read it because...Weight of load has EVERYTHING to do with restraint size. Weight is the basis for all the calculations. <br /><br />?????? 300000lbs restraint for 8000lbs load (37:1 safety margin)? Think again about the numbers for the lumber hauler.
 

JasonB

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Feb 10, 2003
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Re: Do big boats need to be tied at the transom?

I have to disagree with the idea of letting the trailer+load get away from the tow vehicle in any situation. The best way to get an uncontrolled sitution back under control is with the driver. The only way my boat will ome loose from the truck is if the frame hitch is ripped out or the trailer tongue comes apart somehow. I couple it, with the proper size ball, lock the coupler with a pin or lock, attach two safety chains. If those two fail and the trailer is separated from the vehicle, the electric brake breakaway system will apply. I is my responsibility to keep my tailer under control and I can't do that it it gets away from the truck. This is why I have a truck rated for much more than I tow. When it comes to safety, I tend to overdo it sometimes.....<br /><br /> I only have as 19' that is about a 4200lb towed load, but the winch strap is attached, a secondary hold down strap is hooked to the bow eye and then wrapped around the trailer frame independant of the winch post, then I have a 1000lb cap strap all the way across the gunnels attached directly to the trailer frame. Hopefully she won't go anywhere.<br /><br />To answer the original question, wheter it is required by law or not, a tie-down mechanism would be required by ME if it were mine.
 

Bondo

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Re: Do big boats need to be tied at the transom?

?????? 300000lbs restraint for 8000lbs load (37:1 safety margin)? Think again about the numbers for the lumber hauler.
You're Right, Bill......<br /><br />I confused the Load Ratings of Gr8 Bolts,+ Gr8 Chain.........<br /><br />Gr80 3/8" Chain is rated at about 7500lbsW.L.L......... <br /><br />Gr8 3/8" Bolts are rated at about 150,000psi.....<br /><br />Sorry,+ Good Catch.............. ;)
 
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