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Old 28 January 2011, 15:27   #21
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Ouch

That must have been a wild ride

It's your call but I don't think putting concentrated mechanical presure on the toobs is good, particularly if near a partition.

Good to talk today BTW
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Old 29 January 2011, 15:39   #22
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Nasher,

Thank you for sharing your experiences with us. I previously used to own a light weight Phantom the Ribraft 585 weighs so much more therefore I need to give this problem some serious consideration.


Quote:
Originally Posted by Nasher View Post
It always helps to learn from others misfortune and mistakes, so here goes:

Example 1
Ill admit it, my Ocean 6.5 came off its trailer a few years back, so this is a subject close to my heart.
It wasnt much more than a bare hull and tubes at the time, but with an old VRO150 on the back that came with it.
I was transporting it the mile or so backwards and forwards from the yard to my house every other weekend to work on it, and got a bit complacent about the length of the journey and doing a good job of strapping it down.
As I pulled away from a junction the winch wire snapped at the point where it was spliced to the hook, and the 12mm braid on braid rope that was through the towing eyes on the transom snapped in the middle where it was wrapped around the rear swing beam on the trailer.
Being a roller trailer it stayed still whilst the trailer moved forward and it plonked itself on the ground. Luckily it was a quiet back road and a neighbour who was passing helped me winch it back on once Id tied the cable to the bow eye.
Planned work for that weekend was put on hold, and I spent the weekend laying on my back with the boat reversed off the trailer a couple of feet whilst I cut the damaged back 6 inches out of the bottom of the hull and rebuilt it with matting etc.
The old Johnson lost a bit of its skeg, but probably saved the hull from more damage.

Example 2
Many Years ago we were travelling up the A3 late one evening in my Fathers company car, a Sierra, with a Force 4 Flatacraft on its trailer behind. My father possibly dozed off, well never know for sure, but we went off the road down the small bank and hit a tree head on. The dash board came backwards towards us, but the worst bit was the Flatacraft landing on the roof which came down towards us whilst the sunroof and rear windscreen shattered. Apart from my Fathers pride none of us were injured.
The ratchet strap over the tubes near the stern had sheared one of the welded on anchor points off the trailer. The bow of the RIB was attached by the winch cable plus a rope from the winch post around the handles on the hard bow. The whole winch post was still hanging off the bow of the RIB because all 3 U Bolts holding it down to the main spine had sheared cleanly off.
The RIB had some VERY minor scratches on the hull, and the 45HP Suzuki was completely undamaged.
My father being in his 60s was taken off to hospital for a check over whilst we stayed and watched the recovery crane lift the boat off the car and recover the whole rig.
The Sierra being only 4 months old at the time was re-shelled instead of being written off.



Im in no way saying what I do is the best way, its just my solution based on what Ive seen and experienced in the past.

I currently use a really heavy duty ratchet strap over the tubes, I will never use rope again to hold the boat on the trailer. On longer journeys I use strips of old carpet between the strap and tubes for protection.
The strap goes between the 'A' frame and glued on mooring cleats, which would stop forwards or backwards movement if required.

The strap is wrapped around the trailers main chassis rails on either side, as I wont trust welded or bolted on attachment points.
At the ratchet end the hook is doubled back and hooked on to the mechanism.
At the free end, I have a short length of strap about 1 long, rated at 5tns, with a welded eye in either end that is normally used for vehicle recovery. This is wrapped around the trailers main chassis tube and the ratchet strap hook passed through the two ends of the short strap.

At the bow I use a winch strap rather than a wire, and again I use a piece of 5tn strap meant for vehicle recovery as a backup.
This has a triangular welded ring in one end and a sewn in loop at the other.
I wrap the strap around the main chassis rail just in front of the winch post and pass the eye through the loop trapping the chassis rail tightly. The fee end is then passed up through the winch post and Shackled to the Bow eye on the RIB, preventing the boat moving forward or back more than a short distance if the winch strap parts, and will limit movement even if the winch post breaks loose.

Nasher.
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Old 29 January 2011, 15:52   #23
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Thanks to everyone

Well, I am very surprised with the amount of responses to my initial post. I thought it may of been a dumb question.

It would appear that strapping over the tubes is not the way to go. I will have to have a play around with some new gear.

Thanks again to you all.

Paul
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Old 30 January 2011, 04:32   #24
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I'm planning to change my set up to include;

Short heavy duty lorry ratchet on left tow eye.
Short heavy duty lorry ratchet on right tow eye

Replace bow rope tie down with one of the threaded wite tensioners as used on fencing (can't find a picture).

Reasons;
2 straps at the back allow for equal pull down, I think the single 1 currently twists the boat rather than pull square down, also gives redundancy should one fail.

With the winch strap attached and the bow rope pulling slightly back wards then a vertical hold is required. There isn't enough room for an HD strap and the lightweight ones are unreliable so the tensioner seems like a good idea to me
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Old 30 January 2011, 06:30   #25
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Quote:
Originally Posted by Nasher View Post
It always helps to learn from others misfortune and mistakes, so here goes:
........What Nasher said (to save taking up a full screen with this post)......

Nasher.
Hopefully without offending anyone-and bear in mind I've carried pretty much every load going at some point.


To be brutally frank, if you're in a head on collision with another vehicle or an immovable object, there's no hope of keeping the boat on the trailer whatever you do. All you can do is to keep the boat on the trailer safely during normal transport conditions-everything from a crap potholed cart track up to the motorway. Accidents create such massive loads on restraint systems that nothing reasonable is going to stop them breaking.

The trick is not to be in the accident in the 1st place.
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Old 05 February 2011, 17:19   #26
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Quote:
Originally Posted by Ian M View Post
Paul,
I work in Christchurch, so if you need some hands on advice only too willing to visit and chat.
Ian
Ian,

Thank you for your kind offer if I get stuck I will drop you a line.

Cheers, Paul
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Old 06 February 2011, 04:24   #27
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I find these are perfect - if a bit pricey > though they dont sieze and then rip your fingers apart trying to undo them

http://www.topsandstrops.com/acatalo...et_Straps.html
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Old 06 February 2011, 06:32   #28
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Union Industries in Leeds will make up just about any combination of ratchet straps to your own spec. I had a couple of short 5tonne straps made with stainless steel ratchets when I got the "Pig". If you're local, they have a trade counter where you can discuss your requirements face to face & choose the appropriate hooks, catches, "D" links etc.
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Old 06 February 2011, 08:16   #29
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Quote:
Originally Posted by Jeff View Post
if a bit pricey
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Old 03 March 2011, 05:53   #30
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well if its confessing time we had a 4.5m rib roll over on a roundabout whilst being towed by a young instructor (obviously not me then!) rather enthusiatically behind a very quick car. The boat was strapped over the tubes and attached at the bow by the winch strap and a safety chain. The o/b was unscathed, the boat suffered a very slightly scuffed consol and a shattered windscreen but with the help of passing motorists was rolled upright again and continued on its journey. So we have always towed with a strap over the tubes and will continue to do so as the strap saved the day on that occasion. I will also never ever have that make of trailer again-boat sat high on it and the c of g up there with it.
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