When a control arm fails at speed it is definitely a bad thing, but not as bad as you imagine. Typically the side of the car still intact maintains more leverage over the direction of the vehicle than the side which failed; the reason for this is the wheel on the side which fails looses it's aspect ratio to the road surface and as a result, looses much (but not all) of it's ability to control the direction of the vehicle.
My wife and I lived in the NYC metro area for about 10 years and I cannot tell you the number of cars I saw on the FDR, the West Side Highway, and on the Cross Bronx which had clearly suffered a control arm failure and yet had been safely navigated over to the side of the road and on to the shoulder. The flip side is I don't recall ever seeing or hearing of an accident which resulted from a control arm failure. Now don't get me wrong, I'm sure control arm failures do lead to accidents, but my bet is nine (or more) times out of ten, the reason why there was an accident following a control arm failure is because the driver panicked.
A kind of relevant anecdote; when I was learning how to fly a number of years ago, my Ground School instructor said something along the lines of:
The participants in my class offered all manner of suggestions, however, by then I'd read the classic "Stick and Rudder" from cover to cover, so I raised my hand and said, "Fly the damn plane." My instructor repeated my answer to the class and said, "Damn right!"
Circling back to a control arm, power steering failure, or any other sudden vehicle failure when driving; don't panic, stay calm and navigate as best as you can.
My wife and I lived in the NYC metro area for about 10 years and I cannot tell you the number of cars I saw on the FDR, the West Side Highway, and on the Cross Bronx which had clearly suffered a control arm failure and yet had been safely navigated over to the side of the road and on to the shoulder. The flip side is I don't recall ever seeing or hearing of an accident which resulted from a control arm failure. Now don't get me wrong, I'm sure control arm failures do lead to accidents, but my bet is nine (or more) times out of ten, the reason why there was an accident following a control arm failure is because the driver panicked.
A kind of relevant anecdote; when I was learning how to fly a number of years ago, my Ground School instructor said something along the lines of:
"You're on short final in a driving rain storm, a bolt of lightning strikes your left wing and all of your instruments short out, one of your passengers starts to freak out, another plane enters the runway in front of you preparing to take off, and then your engine quits. What do you do?"
The participants in my class offered all manner of suggestions, however, by then I'd read the classic "Stick and Rudder" from cover to cover, so I raised my hand and said, "Fly the damn plane." My instructor repeated my answer to the class and said, "Damn right!"
Circling back to a control arm, power steering failure, or any other sudden vehicle failure when driving; don't panic, stay calm and navigate as best as you can.
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