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Re: Brake Master Cylinder mounting question

 

Brady, one of the key things to making the geometry on the pedals work is to keep the base of the master cylinder as close to the pivot point of the rudder padal I did this and when I press on the rudder pedal the brake pedal moves with the rudder pedal without applying the brakes, to get braking action I just use the top part of my foot to apply brakes like on a old cessna 172

On Thursday, February 27, 2025 at 01:59:13 PM CST, Michael Richardson via groups.io <iwillfly4food@...> wrote:


Here is how I solved the excess MC push rod length.? What you see is a 3/8 x 3/4 x 1.5" long piece of key stock, drilled and tapped to thread onto the MC with a jam nut, drilled hole for the pedal connection and use a waffer disc to cut the slot for pedal connection to fit in.




Mike?


On Thu, Feb 27, 2025, 1:21?PM Brady William Cope via <brady.w.cope=[email protected]> wrote:
I¡¯m sorry if this is a dumb question, but I can¡¯t figure out how the rudder pedals are supposed to move more than a few degrees without applying the brakes inadvertently.?

As opposed to the diagram linked by Merle above, where the Master Cylinder is mounted directly to the rudder pedal.

Can someone help me understand?
Thank you

Brady Cope

On Wed, Feb 26, 2025 at 12:24?PM Merle W via <wagnermerle=[email protected]> wrote:
Matco has an excellent writeup on the geometry.


check it out.

Merle


On Wed, Feb 26, 2025 at 1:21?PM Tailwind14855 via <Tailwind14855=[email protected]> wrote:
The cylinders should be mounted lower and the arm for the top should be on the axis of rotation of the brake pedal.
The Clement method was to use a 5/8 square tube for the lower mount and weld a piece of 5/16 x .058 tubing across the bottom of the 5/8 square. I will try to remember to measure mine but I think the geometry on the Tailwind plans is wrong for the mounting point in relation to the length of the are. The arm does not need to be? square to the pedal, it can angle upward significantly.?
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