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05 September 2020, 08:58
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#1
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Member
Country: UK - England
Town: Colchester
Length: 5m +
Join Date: Sep 2016
Posts: 3,126
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Sib Carrier
Moving on from the idea of carrying ones outboard on your tow hitch. If a person is short on space in their car and have a tow bar but dont want to have a trailer something like the Bak Rak could be used to good effect I think to carry the sib in its bag on.
The original Bak Rak can take 100kg (you need to check what your tow hook can take of course).
Space saving and also easy to lift on and off so better for you back. Most Sibs with bag etc weigh under 60kg all up so should be good to go. Add some ratchet straps and I think it would be very secure.
Should save money on the ferry also as no trailer if that is your thing
bags, tow-ball mounted luggage, boxes, luggage, towbar, clam-shell bag, spare wheel carrier,spare-wheel,spare-wheel rack, carrier, holiday luggage,waterproof bag, toeball, tow-ball, towball, ford, fiesta, citroen, c2, tow-bracket, small car,
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05 September 2020, 19:19
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#2
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Member
Country: USA
Town: NorCal
Boat name: SHARKY
Make: AB
Length: 4m +
Engine: Honda BF75 & BF5
Join Date: Dec 2009
Posts: 2,104
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The forces applied down are amplified by leverage. It is not uncommon for lesser made receiver hitches to bend to the ground, even with things like a bike rack holding two bikes. A boat weighs far more than a couple of bikes.
My hitch carrier has served many purposes over it's lifetime, with the point being I am very familiar with them. Here is my scuba gear beach hauler being used for a plant sale.
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06 September 2020, 07:46
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#3
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Member
Country: UK - England
Town: Colchester
Length: 5m +
Join Date: Sep 2016
Posts: 3,126
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Quote:
Originally Posted by Peter_C
The forces applied down are amplified by leverage. It is not uncommon for lesser made receiver hitches to bend to the ground, even with things like a bike rack holding two bikes. A boat weighs far more than a couple of bikes.
My hitch carrier has served many purposes over it's lifetime, with the point being I am very familiar with them. Here is my scuba gear beach hauler being used for a plant sale.
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As I said Rack is rated to 100kg, need to check your tow bar rating and most sibs are under 60kg........ Your point is ?
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07 September 2020, 06:33
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#4
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Member
Country: UK - England
Town: Lincolnshire
Boat name: Mousetrap
Make: Zodiac Cadet 310S
Length: 3m +
Engine: Mariner 4 stroke 9.9
Join Date: Sep 2014
Posts: 481
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Quote:
Originally Posted by smallribber
As I said Rack is rated to 100kg, need to check your tow bar rating and most sibs are under 60kg........ Your point is ?
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Leverage. Torque.
The tow bar rating is for 60 Kg force at the ball, so that's nose weight of the trailer, with the rest of the weight supported by the wheels of the trailer, and with the trailer hitch able to move on the ball.
If you clamp a rack to the ball, it can't move on the ball. None of the weight is taken by the trailer wheels (as there s no trailer) and — importantly — if the weight is not exactly vertically above the ball then there is a twisting force on the ball.
It's like using a longer bar to undo a wheel nut. You apply the same amount of "weight" with your hand, but it translates into more twisting force at the nut.
So any sort of rack clamped to a towball is applying force differently from the simple "nose weight" of the trailer.
How much difference will depend on many variables, and it may or may not be significant, but there is a difference.
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07 September 2020, 08:23
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#5
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Member
Country: UK - England
Town: Colchester
Length: 5m +
Join Date: Sep 2016
Posts: 3,126
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Mike
Yes I understand the principle of a lever and that is an issue.
The fact that there are many of these devices made and for sale in various guises makes me think they will be OK. Most Sibs are actually around the 45kg mark particually if you put the seats and oars etc in the car.
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07 September 2020, 21:12
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#6
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Member
Country: USA
Town: NorCal
Boat name: SHARKY
Make: AB
Length: 4m +
Engine: Honda BF75 & BF5
Join Date: Dec 2009
Posts: 2,104
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Quote:
Originally Posted by smallribber
As I said Rack is rated to 100kg, need to check your tow bar rating and most sibs are under 60kg........ Your point is ?
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My cargo carrier is rated for 500lbs (227kg). That rating means nothing as the hitch is the failure point. We do towing differently in the USA and most vehicles use a square tube receiver hitch. From the leverage they can easily bend to the ground as has happened many times. So your SIB weighs 60kg, along with the outboard which is another 40kg, plus you don't want your fuel inside the vehicle so add in another 10kg. Take that 110kg and toss it up in the air and have it land on the rack. Those are the forces at work.
This is the rack in my photo above.
https://www.harborfreight.com/500-lb...ier-92655.html
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08 September 2020, 05:28
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#7
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Member
Country: UK - England
Town: Colchester
Length: 5m +
Join Date: Sep 2016
Posts: 3,126
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Quote:
Originally Posted by Peter_C
My cargo carrier is rated for 500lbs (227kg). That rating means nothing as the hitch is the failure point. We do towing differently in the USA and most vehicles use a square tube receiver hitch. From the leverage they can easily bend to the ground as has happened many times. So your SIB weighs 60kg, along with the outboard which is another 40kg, plus you don't want your fuel inside the vehicle so add in another 10kg. Take that 110kg and toss it up in the air and have it land on the rack. Those are the forces at work.
This is the rack in my photo above.
https://www.harborfreight.com/500-lb...ier-92655.html
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Who said anything about putting the outboard and all the other stuff on the rack I actually said the opposite. Put just the sib on the rack all the other stuff in the car.
Yes we know the US does things differently.... It gives many people cause for concern
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08 September 2020, 09:20
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#8
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Member
Country: UK - Wales
Town: Cardiff
Length: no boat
Join Date: Aug 2014
Posts: 2,018
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If the car has a towbar why not just use a trailer
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08 September 2020, 13:37
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#9
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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: 4,007
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Quote:
Originally Posted by HDAV
If the car has a towbar why not just use a trailer
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Isn't that just----[emoji848]well too easy?[emoji6][emoji23][emoji23]
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08 September 2020, 15:56
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#10
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Member
Country: UK - Scotland
Town: Glasgow
Boat name: Cesa
Length: no boat
Join Date: Sep 2013
Posts: 247
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Quote:
Originally Posted by beamishken
Isn't that just----[emoji848]well too easy?[emoji6][emoji23][emoji23]
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Most difficult decision would be ‘what one do I use out of my 11 ?’
[emoji849]
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08 September 2020, 16:00
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#11
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Member
Country: UK - Wales
Town: Cardiff
Length: no boat
Join Date: Aug 2014
Posts: 2,018
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Quote:
Originally Posted by pilotwillie
Most difficult decision would be ‘what one do I use out of my 11 ?’
[emoji849]
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and how do you choose from the 4 tow vehicles
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08 September 2020, 18:21
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#12
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Member
Country: UK - England
Town: Colchester
Length: 5m +
Join Date: Sep 2016
Posts: 3,126
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Quote:
Originally Posted by HDAV
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Colour, Time of day and what quadrant of the Sky the Sun is in
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08 September 2020, 18:22
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#13
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Member
Country: UK - England
Town: Colchester
Length: 5m +
Join Date: Sep 2016
Posts: 3,126
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Quote:
Originally Posted by HDAV
If the car has a towbar why not just use a trailer
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Did you bother to read the first post. If you did you would know some of the answers to that question
Also it was not just about what I might do it was sharing information and ideas with others
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08 September 2020, 18:25
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#14
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Member
Country: UK - England
Town: Colchester
Length: 5m +
Join Date: Sep 2016
Posts: 3,126
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Quote:
Originally Posted by pilotwillie
Most difficult decision would be ‘what one do I use out of my 11 ?’
[emoji849]
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Not sure if it is only 11 actually.. How would you count the number of your boats ?
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08 September 2020, 19:22
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#15
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Member
Country: USA
Town: NorCal
Boat name: SHARKY
Make: AB
Length: 4m +
Engine: Honda BF75 & BF5
Join Date: Dec 2009
Posts: 2,104
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Quote:
Originally Posted by smallribber
Who said anything about putting the outboard and all the other stuff on the rack I actually said the opposite. Put just the sib on the rack all the other stuff in the car.
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Why not put the smelly stuff on the rack and the SIB in the car? Last thing I want is to smell petrol while driving for hours.
Quote:
Originally Posted by smallribber
Yes we know the US does things differently.... It gives many people cause for concern
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Funny as we laugh at Europeans with tiny tow vehicles that are way undersized with short wheelbases. Of course this is the only video I need to see to base my assumption on (In the USA we are judged by the size of our vehicles, so the bigger the better. Kidding my French wife drives a tiny Prius C as she doesn't like big vehicles, and yes even it has a receiver hitch that I built out of 1.75" DOM to carry our bikes on a rack. The store bought receivers are known to bend.)
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