Packard
Member
The other day I watched on my DVD a made for TV movie and an assassin killed a driver by cutting his brake line. All the victim tried to do was repeatedly step on the brakes.
I lost my brakes going down a 4 mile long steep hill in Vermont in 1970. I was driving a new Chevrolet Caprice station wagon (company car) which had drum brakes all around. I was about 22 years old and not a highly experienced driver. I applied my brakes too continuously and they overheated and stopped working.
I had driven down this hill in the past, and I knew at the bottom of the hill, I could either turn left, or turn right, or drive into the lake across the road.
The car had already sped up to over 60 mph. I was in trouble.
But I did not repeatedly step on the brakes. Instead I shifted the transmission into “2” (second gear of a 3 speed transmission), which got me down to about 45 mph. Then I shifted into “L” (“Low”, first gear) which on the steeper grades got me to about 25 mph, but at the base it would be less steep.
My hope was if I did not touch the brakes until I got to the bottom, that they would have cooled enough to bring the car to a stop. As a last resort I could throw it into park, but at the risk of damaging the transmission.
I did manage to stop the car about 5 feet past the stop sign. I pulled over the the side of the road for about 15 minutes to allow the brakes to cool. Then drove a short distance to a coffee shop to take a longer break.
The brakes linings “glazed” from the heat but a few stops later the brakes wore off the glaze and they were fine.
This is unlikely in a more modern car, as they have disc brakes that don’t overheat as easily.
But if the bad guys are after you, down shifting in an automatic will help, but not as much as in 1970. My car’s transmission has 9 speeds and one “low”, which I imagine is about 4th or 5th gear, so less engine braking.
But the parking brake is independent and mechanical and will help at very low speeds. (Disc brakes do not make satisfactory parking brakes, so a small drum brake is usually fitted to the rear wheels for parking.)
A manual transmission will be more effective nowadays, but don’t try to go from 5th to 2nd, you would probably have to hit every gear down to 2nd.
As an aside, in old movies where the race car driver “down shifted to save his brakes”, he was not trying to avoid getting a new brake job, he was trying to keep the brakes cool so that they would work. Juan Fangio stuff.
en.wikipedia.org
In any case, if an assassin cuts your brake lines, you now have a tactic to deal with it.
I lost my brakes going down a 4 mile long steep hill in Vermont in 1970. I was driving a new Chevrolet Caprice station wagon (company car) which had drum brakes all around. I was about 22 years old and not a highly experienced driver. I applied my brakes too continuously and they overheated and stopped working.
I had driven down this hill in the past, and I knew at the bottom of the hill, I could either turn left, or turn right, or drive into the lake across the road.
The car had already sped up to over 60 mph. I was in trouble.
But I did not repeatedly step on the brakes. Instead I shifted the transmission into “2” (second gear of a 3 speed transmission), which got me down to about 45 mph. Then I shifted into “L” (“Low”, first gear) which on the steeper grades got me to about 25 mph, but at the base it would be less steep.
My hope was if I did not touch the brakes until I got to the bottom, that they would have cooled enough to bring the car to a stop. As a last resort I could throw it into park, but at the risk of damaging the transmission.
I did manage to stop the car about 5 feet past the stop sign. I pulled over the the side of the road for about 15 minutes to allow the brakes to cool. Then drove a short distance to a coffee shop to take a longer break.
The brakes linings “glazed” from the heat but a few stops later the brakes wore off the glaze and they were fine.
This is unlikely in a more modern car, as they have disc brakes that don’t overheat as easily.
But if the bad guys are after you, down shifting in an automatic will help, but not as much as in 1970. My car’s transmission has 9 speeds and one “low”, which I imagine is about 4th or 5th gear, so less engine braking.
But the parking brake is independent and mechanical and will help at very low speeds. (Disc brakes do not make satisfactory parking brakes, so a small drum brake is usually fitted to the rear wheels for parking.)
A manual transmission will be more effective nowadays, but don’t try to go from 5th to 2nd, you would probably have to hit every gear down to 2nd.
As an aside, in old movies where the race car driver “down shifted to save his brakes”, he was not trying to avoid getting a new brake job, he was trying to keep the brakes cool so that they would work. Juan Fangio stuff.
Juan Manuel Fangio - Wikipedia
In any case, if an assassin cuts your brake lines, you now have a tactic to deal with it.
