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14 September 2020, 19:43
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#1
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Member
Country: UK - England
Town: Up Northish
Boat name: Korky
Make: Elling KB350
Length: 3m +
Engine: Tohatsu 9.8 2 Stroke
Join Date: Aug 2020
Posts: 95
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Tie Down Straps for Trailer
I have just modified my utility trailer to transport our new Elling KB350. Just wondering what people are using to tie their Sibs down to trailers. I'm not too keen to have the straps directly onto the tubes so I am considering making up some pads. I am also a bit wary of strapping the front eye too tightly so any tips and advice most welcome.
I will post some pictures of my multi purpose trailer later in the week. It didnt take much doing and gives a lot of options when transporting the Sib.
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14 September 2020, 22:30
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#2
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Member
Country: UK - England
Town: Kent
Boat name: ever dry
Make: Elling KB350
Length: 3m +
Engine: Yamaha 15hp 2 stroke
Join Date: Jun 2020
Posts: 626
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I wonder if the pads they sell to cover car seat belts will be of use for the tube protection over your straps?
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14 September 2020, 22:36
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#3
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RIBnet admin team
Country: Ireland
Length: 4m +
Join Date: Feb 2008
Posts: 14,882
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Heating pipe insulation. Slip it over the strap webbing.
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15 September 2020, 06:51
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#4
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Member
Country: UK - England
Town: Colchester
Length: 5m +
Join Date: Sep 2016
Posts: 3,093
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Have you not got any tow eyes on the Transom. If you have make short straps and strap to these at the back. Then one on the bow eye should do the trick.
Strapping over the tubes is not ideal and will as you seem to realize mark the tubes. Also as air temp changes the straps will be loose potentially
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15 September 2020, 07:06
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#5
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Member
Country: UK - England
Town: Nottinghamshire
Make: Ranieri 15
Length: 4m +
Engine: Suzuki DF50
Join Date: Jul 2016
Posts: 1,280
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By all means use the transom davit eyes and bow eye, but I also use 50mm straps to spread the load and go over the top of both tubes, one side to the other. This is belt-and-braces holding our RIB down on it's trailer. No ill effects on the tubes after many years (previous owner did this before me using 25mm straps and pipe insulation).
Smallribber's fear that the straps loosen due to temperature change is unfounded. Pressure in the tubes ensures there's never any slack. The tubes may get dirty depending on the cleanliness of your strap so you keep strap and tube clean as you can. Never let the strap touch the floor.
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15 September 2020, 16:53
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#6
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Member
Country: UK - England
Town: Colchester
Length: 5m +
Join Date: Sep 2016
Posts: 3,093
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Never let the strap touch the floor.. That is easier said than done
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15 September 2020, 17:10
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#7
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Member
Country: UK - England
Town: Up Northish
Boat name: Korky
Make: Elling KB350
Length: 3m +
Engine: Tohatsu 9.8 2 Stroke
Join Date: Aug 2020
Posts: 95
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Thanks for the ideas and pointers. I will probably go down the pipe insulation route but will look at adding some transom eyes.
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15 September 2020, 18:04
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#8
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Member
Country: UK - England
Town: Waterlooville
Boat name: Tickler
Make: Halmatic P22
Length: 6m +
Engine: Inboard Diesel 240HP
MMSI: 235115642
Join Date: Sep 2015
Posts: 1,777
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If you have launching wheels you could potentially put eyes on the inside of the transom on the bolts that go through the launching wheel brackets but just be careful they don't foul the air floor.
I'm probably on the side that doesn't like strapping over the tubes.
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15 September 2020, 19:00
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#9
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Member
Country: UK - England
Town: Kent
Boat name: ever dry
Make: Elling KB350
Length: 3m +
Engine: Yamaha 15hp 2 stroke
Join Date: Jun 2020
Posts: 626
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I did this on my 350 d rings.jpg
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15 September 2020, 19:12
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#10
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Member
Country: UK - England
Town: Waterlooville
Boat name: Tickler
Make: Halmatic P22
Length: 6m +
Engine: Inboard Diesel 240HP
MMSI: 235115642
Join Date: Sep 2015
Posts: 1,777
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Quote:
Originally Posted by Oldman2
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That's better than mine. I used eye nuts but the same principle.
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15 September 2020, 19:15
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#11
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Member
Country: UK - England
Town: Up Northish
Boat name: Korky
Make: Elling KB350
Length: 3m +
Engine: Tohatsu 9.8 2 Stroke
Join Date: Aug 2020
Posts: 95
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Those look very good indeed and also very useful, great advice!
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15 September 2020, 19:34
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#12
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Member
Country: UK - England
Town: Kent
Boat name: ever dry
Make: Elling KB350
Length: 3m +
Engine: Yamaha 15hp 2 stroke
Join Date: Jun 2020
Posts: 626
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I did finish them off with dome nuts but had to fit with plain nuts to start with so I got full compression and could measure the amount of thread to remove so as to not bottom out when tightening the bolts/dome nuts.
As an aside I removed both makers plates as they would have got drilled! But they were held on with self tappers with no sealant behind so a place for water to enter the plywood. I sealed the holes with marine sealant and put the plates safe indoors
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15 September 2020, 19:49
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#13
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Member
Country: UK - England
Town: Retford
Boat name: Spy-sea-one
Make: Excel 435
Length: 4m +
Engine: Suzuki Outboard/25/4
Join Date: Oct 2011
Posts: 7,525
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Not only do you get rub and wear on the tubes from straps when the tubes go down due to temperature they are loose and vibrate causing more damage and an insecure load.
Straps through the eye bolts on the transom bow eye on to winch with a strap holding down to the trailer from the bow eye.
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15 September 2020, 21:27
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#14
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Member
Country: UK - Scotland
Town: north ayrshire
Boat name: charlie girl
Make: S/R5.4/regal3760
Length: 10m +
Engine: Suzukidf70 2x6lp 315
Join Date: Jul 2009
Posts: 3,972
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I wouldnt get to stressed by the anti tube strap brigade i have a 20 year old rib I've owned from new and its had straps over its tubes its entire life and it doesnt have a strap related mark anywhere . If tubes are inflated to 3psi or so you could probably have several hundred kg of downforce over the area of the tube so the boats going nowhere
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15 September 2020, 22:05
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#15
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Member
Country: UK - England
Town: South West
Make: Zapcat
Length: 4m +
Engine: 50 tohatsu
Join Date: Mar 2020
Posts: 271
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Not sure if it’s a zapcat thing but apparently when you strap them side on it can pull the tubes off the transom/nose cone. Not something I imagine is overly relevant as zapcats aren’t exactly built well to last.
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