Azusa drum brakes

Anyone out there have any experience with Azusa drum brakes?

thanks,
Brad

On Jan 8, 7:53*am, Brad wrote:
Anyone out there have any experience with Azusa drum brakes?
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Dear Brad,

First, make sure they are round and that those tiny little shoes make
100% contact -- they need to be radiused to match the drums. Then you
havve to come up with some means of pulling them tight enough, and I'm
talking something on the order of 400 pounds here (!!) This was easy
to get on a go-cart, with a direct link to the brake pedal, the full
strength of your leg to push. Almost impossible to get that kind of
pressure in ANY aircraft installation, which is why most of us end up
going with some sort of hydrulic disk-brake affair. Steve sells a
good one; not too heavy. Be sure to buy the WHOLE KIT... master
cylinders right through to wheels. They're a bit rough in appearance
but function is 100% A-ok. The Azuza are for those of us who are
desperately poor, will probably end up dragging our feet, if that's
what it takes to slow us down. The usual arrangement simply does not
exert enough pressure on the shoes, and the shoes simply do not make a
tight enough fit to the drums.

-Bob

wrote in message
...
On Jan 8, 7:53 am, Brad wrote:
Anyone out there have any experience with Azusa drum brakes?
-----------------------------------------------------------------------------------------------

Dear Brad,

First, make sure they are round and that those tiny little shoes make
100% contact -- they need to be radiused to match the drums. Then you
havve to come up with some means of pulling them tight enough, and I'm
talking something on the order of 400 pounds here (!!) This was easy
to get on a go-cart, with a direct link to the brake pedal, the full
strength of your leg to push. Almost impossible to get that kind of
pressure in ANY aircraft installation, which is why most of us end up
going with some sort of hydrulic disk-brake affair. Steve sells a
good one; not too heavy. Be sure to buy the WHOLE KIT... master
cylinders right through to wheels. They're a bit rough in appearance
but function is 100% A-ok. The Azuza are for those of us who are
desperately poor, will probably end up dragging our feet, if that's
what it takes to slow us down. The usual arrangement simply does not
exert enough pressure on the shoes, and the shoes simply do not make a
tight enough fit to the drums.

-Bob

"Brad" wrote in message
...
Anyone out there have any experience with Azusa drum brakes?

thanks,
Brad

Most interesting, and No, I have no experience with them. But I recognize
them from the plans for the KR-2 as the originally specified braking system.
They are obviously much more compact, when sized to fit inside the wheel
rim, than the side mounted disk brakes and were intended to provide the
lowest practical drag for the partially retracting main undercarriage of the
KR-2; but are reputed to provide comparatively inferior braking.

Less obviously; it mounted inside of a pressure recovery type wheel faring
on a fixed undercariage, it would be difficult to find any aerodynamic
difference.

Peter