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Old August 19th 10, 11:17 AM posted to uk.transport.london
Roy Badami Roy Badami is offline
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First recorded activity at LondonBanter: Dec 2008
Posts: 280
Default Runaway Train On The Tube

On 19/08/10 10:48, d wrote:
On Thu, 19 Aug 2010 04:24:05 -0500
wrote:
In ,
(Mike
Bristow) wrote:


Surely it has some sort of handbrake? How else could it be parked safely
for long periods when the air will have all leaked out?


Perhaps it had a sprung parking brake, of the kind that automatically
engages when the pressure in the main reservoir is low? If it was
impossible to pressurise the air brake, such a parking brake would need
to be disabled...

-roy