Brakes on Russian Helos
I have a bunch of time in the Mi-8,17,24/25 and they all have the same wheel brake system. The nose wheel is a simple caster like the grocery cart and the main wheels are braked simultaneously using a bicycle type hand brake installed on the front of the cyclic grip.
It is a very simple system. No extra master cyliders for each wheel are needed since there are no brake pedals on the floor for individual wheels. One uses the tail rotor pedals (and tail rotor thrust) to do the steering. Squeeze the handle and she stops. The only really weird thing is that they are actuated using compressed air, much like a truck!
I liked the system. Western OEM's ought to look at this.