Chat & Social > The Bar - General Chat
Towing frames
Eeyore:
--- Quote from: redhand on September 10, 2008, 10:32:45 ---
Yes there is but it does not meet C&U regulations. and because the servo isn't operating on the towed vehicle the braking efficiency is reduced. So it doesn't meet minimum braking efficiencies anymore.
--- End quote ---
Is that right? Brakes have to be designed to effectively stop the vehicle without the aid of a servo. it's like saying your steering doesn't work is the PAS pump goes. Sure, the brakes get harder to push, but they still gotta stop the vehicle.
I beleive it's easier for a trailer type brake to stop the towed car if the servo's operating, but it's not essential. Just like you don't need the ABS to operating either.
However, that doesn't take awy form the fact that a lot of the brake assist systems sold for towing cars aren't up for the job.
carbore:
Re servos, older cars are just about ok wihout, but if you read my thread about coasting down hill in an Auto Freelander you may remember that I certainly diddnt feel the brakes were "effective" (terror!)
Gald to see the the originator of this thread is going to trailer it!
My feelings are..
If you use it and no one (coppers) sees you then nothing happens.
If you use a decent looking one and coppers see you they may well have something better to do and not pull you over.
If you get pulled over in a police/vosa operation then you will be looking at lots of legislation very quickly so its X points/fine or hire a solicitor.
If you have an accident then you may well be un insured and various other charges will apply.
I treck up and down the A30 form Cornwall to Glos regually and in the hols season there are frequent if not constant stops on trailers etc. Police bikes/vans and VOSA.
Now that sounds extreme but also every week there as a pile or trailer parts (plus the odd tent) scattered in laybys and hard shoulders. Although the owner of the trailer may think its only them and once a year. When you drive past 10 wonky trailers on the way home you are glad that the police are trying to reduce the chances of one of these ending up under or in my Freelander.
redhand:
--- Quote from: Eeyore on September 10, 2008, 11:30:49 ---
--- Quote from: redhand on September 10, 2008, 10:32:45 ---
Yes there is but it does not meet C&U regulations. and because the servo isn't operating on the towed vehicle the braking efficiency is reduced. So it doesn't meet minimum braking efficiencies anymore.
--- End quote ---
Is that right? Brakes have to be designed to effectively stop the vehicle without the aid of a servo. it's like saying your steering doesn't work is the PAS pump goes. Sure, the brakes get harder to push, but they still gotta stop the vehicle.
I beleive it's easier for a trailer type brake to stop the towed car if the servo's operating, but it's not essential. Just like you don't need the ABS to operating either.
However, that doesn't take awy form the fact that a lot of the brake assist systems sold for towing cars aren't up for the job.
If someone was sat in the towed vehicle and pressing as hard as they can then they would probably meet the minimum efficiencies required. Unfortunately the devices you get with Aframes don't apply that amount of force to the pedal. and consequently the braking effort at the wheels is severely reduced.
--- End quote ---
Mudlark:
--- Quote from: redhand on September 10, 2008, 16:27:51 ---
--- Quote from: Eeyore on September 10, 2008, 11:30:49 ---
--- Quote from: redhand on September 10, 2008, 10:32:45 ---
Yes there is but it does not meet C&U regulations. and because the servo isn't operating on the towed vehicle the braking efficiency is reduced. So it doesn't meet minimum braking efficiencies anymore.
--- End quote ---
Is that right? Brakes have to be designed to effectively stop the vehicle without the aid of a servo. it's like saying your steering doesn't work is the PAS pump goes. Sure, the brakes get harder to push, but they still gotta stop the vehicle.
I beleive it's easier for a trailer type brake to stop the towed car if the servo's operating, but it's not essential. Just like you don't need the ABS to operating either.
However, that doesn't take awy form the fact that a lot of the brake assist systems sold for towing cars aren't up for the job.
--- End quote ---
If someone was sat in the towed vehicle and pressing as hard as they can then they would probably meet the minimum efficiencies required. Unfortunately the devices you get with Aframes don't apply that amount of force to the pedal. and consequently the braking effort at the wheels is severely reduced.
--- End quote ---
Not quite sure how you arrive at this reply as the mechanical leverage of a decent A-frame brake is far greater than anyone can apply with their foot
redhand:
--- Quote from: Mudlark on September 10, 2008, 17:09:14 ---
--- Quote from: redhand on September 10, 2008, 16:27:51 ---
--- Quote from: Eeyore on September 10, 2008, 11:30:49 ---
--- Quote from: redhand on September 10, 2008, 10:32:45 ---
Yes there is but it does not meet C&U regulations. and because the servo isn't operating on the towed vehicle the braking efficiency is reduced. So it doesn't meet minimum braking efficiencies anymore.
--- End quote ---
Is that right? Brakes have to be designed to effectively stop the vehicle without the aid of a servo. it's like saying your steering doesn't work is the PAS pump goes. Sure, the brakes get harder to push, but they still gotta stop the vehicle.
I beleive it's easier for a trailer type brake to stop the towed car if the servo's operating, but it's not essential. Just like you don't need the ABS to operating either.
However, that doesn't take awy form the fact that a lot of the brake assist systems sold for towing cars aren't up for the job.
--- End quote ---
If someone was sat in the towed vehicle and pressing as hard as they can then they would probably meet the minimum efficiencies required. Unfortunately the devices you get with Aframes don't apply that amount of force to the pedal. and consequently the braking effort at the wheels is severely reduced.
--- End quote ---
Not quite sure how you arrive at this reply as the mechanical leverage of a decent A-frame brake is far greater than anyone can apply with their foot
--- End quote ---
I arrived at my conclusion by reading the regs guidelines and rules governing the use of an Aframe on a UK road All of which state that an use of an Aframe to tow a car would be illegal because the braking effiencies would not be met using the systems that are currently available.
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