Beautiful Q, Henry.
Was it ever used on a vehicle?
Thanks, also for the different rotors displayed.
The Q rotor is a work of art, too.
Interesting that they "growled" at higher vehicle speeds.
I never noticed ours do that.
Their published inrush and maintenence amps are too conveniently even numbers.
Would like to know the REAL values.
This one did come off one of our units in the early 70's. I had it re-chromed around 1980 and besides some periodic polishing, its held up well through the years.
Free wheeling of the rotors at speed was not uncommon in those days. Not sure if it was because of the ball and ramp clutch. Federal now uses a different type of clutch. In fact that is one reason that B & M manufactures its present day coasters with a brake that is normally on. In other words you apply power to the brake to retract it from the back of the rotor. Our leader did not believe in brakes on any of our coasters which included Fed. model 77's, C5A's, Q's and B & M CS8's, He claimed it was too hard on the coaster bearing, not sure if there was any truth to that.
If any body is interested, those rotors are from a Fed. Model 28, Sterling M30, Fed. Model 77 and of course the Q.
Here is a different pic of the rotors: