If they use Asbestos in light aircraft, there must be a strong advantage.
Also, 20 or 30 years ago they figured out that Asbestos is very toxic.
Hopefully, the brake dust from the Asbestos linings will be in low enough
concentration that will not harm the driver and your passengers (unless you
drive like me, where you often smell the brake linings burning!). As it turns
out, a good percentage of dust in residential areas close to large highways
is ... brake dust! So, the removal of asbestos from brake linings may have
been good for public health overall.
As for the increase in stopping distance. Well, it might increase braking
effort, but I can't see why it will increase stopping distance (braking effort
may be more important in light aircraft, as they usually do not have brake
boosters). Usually, the limitation in braking is traction between tires and
road, not friction between linings and rotors/drums. As for the accelerated
wear, I have no reason to doubt your observation.
Asbestos is not the only material that works really great while happens to be
incompatible with public health. Probably the best example of such a material
is lead in gasoline. It works really great to raise the octane, and real
cheap. Too bad it reduces mental abilities in children among other things!
D^2, that has never driven a car with Asbestos brake linings
Quoting "Dodd, David J" <David.Dodd@xxxxxxxxxxxx>:
> well back in the day all they had was asbestos brake shoes they will
> stop your car faster, better, etc. The new shoes that the govt want you
> to use are non-asbestos, most of which are semi-metallic. Semi-metallic
> are the majority of the shoes you will find in part stores at a cheap
> price. Over a period of time I have found that I go through brake shoes
> and drums at a very high rate. The constant use of semi-metallic shoes
> on steel drums will cause a glazing effect on the inside and this will
> increase stopping distance. The use of these semi-asbestos brake shoes
> will decrease that distance. Once you try them you will notice the
> difference right away and when you think about it semi-metallic shoes on
> a steel drum... that's metal on metal..
> I drive my car to and from work every-day. I love to buy expensive gas.
> I like big heavy imperial.
>
> dave
> "All humans are born Right-Handed...but the great ones overcome it."
>
> -----Original Message-----
> From: Mike and Cindy [mailto:mbecker30@xxxxxxxxx]
> Sent: Monday, February 10, 2003 18:19
> To: mailing-list@xxxxxxxxxxxxxxxx
> Subject: IML: asbestos brake shoes
>
>
> what is the advantage of asbestos brake shoes?
>
> mike becker
>
>
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