At 10:37 AM 10/14/2012, you wrote: >Piper uses another master-cylinder... I've never seen the system Cessna >uses up close +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The Cessna systems I've seen in their small aircraft use a "locking tab" that is actuated by a cable / spring assembly. This tab is similar to a washer that surrounds the shaft. When the brakes are depressed, the cable / spring assembly pulls the tab to a position, via a knob on the panel, that locks the shaft in the depressed position. It binds the shaft and keeps it from returning to the home (off) position. Really quite simple. I've seen another "homebuilt" lock that use a "tee" on a long handle to lock toe actuated brakes. The brakes are depressed, then the tee on the end of the handle is inserted between the toe pedal and the supporting tubing. I guess it worked for that builder. I'm guessing chocks are still the lazy way out. :-) Larry Flesner
