Re: Brake Bleeding

[S Garrod <S.Garrod@sheffield.ac.uk>]

On Tue, 25 Jul 1995, Gary Schneider wrote:

> I learned from experts on this list that the PDWA - Pressure Differential
> Warning Actuator(?) - senses a lack of pressure in either brake line and
> closes off the one of low pressure, to prevent loss of fluid from a
> ruptured line. 

Is this correct for the PDWA fitted to Spitfires? I always assumed that 
this device only warned of a problem rather than closed one of the circuits.

Simon Garrod.