Eric van den Berg wrote: > Agreed, but the as you are saying, the brake is hydraulic and > therefore there will always be a valve that traps the hydraulic fluid
No. At least the older C172's are having mechanically operated parking brake levers which apply force onto the same hydraulic master cylinders as the pedals do. The DR300's and maybe even the very early DR400's are using the same principle and, as far as I remember, that's quite similar on the C150's and PA28's (the DR300 doesn't have toe brakes at all ....). Thus all their parking brakes are featuring an analogue characteristic. The modern DR400's are having a parking brake valve according to your explanation and our old C175 has a mechanical ! arrestor on the hydraulic master cylinders. Did I forget one ? Maybe. Cheers, Martin. -- Unix _IS_ user friendly - it's just selective about who its friends are ! -------------------------------------------------------------------------- ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel