<VV> <WW> steam brakes

[Padgett]

>it would expand
>forcefully and lock up the brake system (INCREASING rather than DECREASING
>the volume occupied by fluids in the close brake system).

Two things to keep in mind:
1) the pressure when you apply the brakes easily exceeds 1,000 psi
2) while  steam will try to expand when water boils, that is in constant 
pressure. While water and brake fluid are both incompressible (why juice 
brakes work), steam is a compressible gas like air.

It might be forceful but is probably not forceful enough.

Now that is purely a swag, anyone know ?

Padgett