Addison Pemberton has come up with a Cleveland brake set up for his Custom Cabin Waco. For other Waco owners contact Addison.
I am no expert but I think I have cherry picked the best of the best of all the Cleveland 10" brake Waco solutions. Waco members have sent me their 337 field approvals from which I have gleaned what I could. The FAA likes our proposal so we are good to go. The Fred Flintstone original brakes are history. See pictures of my EQC-6 brake solution and part numbers below. We have yet to match drill the flange to mate the Cleveland torque plate.
See picture of the machine set up to reduce the diameter of the stock Waco gear knuckle brake torque flange to 4.050" to accept the Cleveland 65-33 casting PN 075-08900 torque plate. I am also using the 40-40D 10" wheel which offers the heavy gross weight option with AN 5 bolts and the 164-20206 brake disk. I am also using a 3 puck (piston) bumpy back organic 30-89 brake caliper assembly. The bumpy back calipers prevent piston cocking and brake drag, also the organic linings have worked well for us. On our Staggerwing project we were forced to use flat back calipers to clear gear doors and metallic linings and constantly had brake drag issues.
Finally we are using 5/8 bore Cleveland or equivalent 10-35 master cylinders on the pilot side and non reservoir compliment on the co-pilot side pedals. Pedals are modified Fairchild PT 19 to fit new welded up linkage and graphic.
By the way Cleveland has an excellent tech support line at 800-272-5464. If you give them things like gross weight and landing speed and wheel diameter they can give you desired brake line pressure. I gave them these numbers for our Boeing 40 and the double 3 piston calipers and 38" wheels, and the pressure numbers they gave me, were perfect. This helped us design all the linkage and the desired pedal pressure I wanted. I call this the No Nose Over Non Ground Loop Magic Numbers. Enough brake to keep you out of trouble and not cause trouble?
