...+0100, Boltar wrote (in article <54f187fd-01bf-40b0-9b1e-218d4a80d306@y38g2000hsy.googlegroups.com>): Yes, but they are "over-run brakes"- the trailer's brakes are applied by the trailer pushing forward on the towbar as the prime mover brakes. Didn't know that. I assumed you had to fit some sort of air brake system to your car if you pulled a braked trailer. Shows how much I...
... fact most have seperate max towing weights for braked and unbraked in the handbook. Yes, but they are "over-run brakes"- the trailer's brakes are applied by the trailer pushing forward on the towbar as the prime mover brakes. Didn't know that. I assumed you had to fit some sort of air brake system to your car if you pulled a braked trailer. Shows how much I know. B2003
On 9 Aug, 19:21, The Real Doctor <ubergeek...@googlemail.com> wrote: Often it's because the towbar is so far behind the rear axle that a heavy trailer (which has to be nose heavy for stability) reduces the load on the car'... , I hadn't thought of that , but on the other hand I guess the rules would also apply to trailers that have 2 axles and put little weight on the towbar. B2003
... most have seperate max towing weights for braked and unbraked in the handbook. Yes, but they are "over-run brakes"- the trailer's brakes are applied by the trailer pushing forward on the towbar as the prime mover brakes. It's an ingenious idea, but obviously nowhere near as efficient as a multi-wheeled braking system operating on 120 psi of air pressure and with brake pads the ...
... , what about doubles then in the USA and road trains in australia? I presume their towing hitches are massively engineered, but in any event, a truck has a chassis, which a car doesn't. A car's towbar is simply bolted to a piece of 18 guage steel. I'm just curious as to why cars have such a low max towing weight as a percentage of their own weight. Well, the trailer on ...
...in the USA and road trains in australia? I'm not arguing , I'm just curious as to why cars have such a low max towing weight as a percentage of their own weight. Often it's because the towbar is so far behind the rear axle that a heavy trailer (which has to be nose heavy for stability) reduces the load on the car's front wheels too much. Since they do much of the braking and all of the...
Huge (Huge <Huge@nowhere.much.invalid>) gurgled happily, sounding much like they were saying: Unfortunately, the weight of me was enough to lower the car enough to get the towbar to catch on the hitch's handle, and pull the handle up and over-centre, buggering it... Damn. I hate it when things like that happen. <shrug> The hitch needed to come off anyway, because it'd been ...
... workshop this morning, laid the nose of the A-frame on the ground... and it rolled forward a foot or so, with the hitch under the back of the Saab. I stopped it, put the handbrake on, and drove the Saab forwards. Unfortunately, the weight of me was enough to lower the car enough to get the towbar to catch on the hitch's handle, and pull the handle up and over-centre, buggering it...
... to the front wheels of the towing vehicle no matter what configuration. If you had a standard towbar trailer (or whatever they're called) or even a caravan the wheels will more or less follow where the car has gone. Difference is the wheels on a caravan/towbar trailer are in the middle of the trailer which alters the steering characteristics. Despite that, they still ...
...>> clearances. I think you only get that cut in because the tractor and trailer overlap and the back wheels of the tractor are behind the front of the trailer. If you had a standard towbar trailer (or whatever they're called) or even a caravan the wheels will more or less follow where the car has gone. Watch one of those little baggage trains at an airport or station next time...
