Re: Beresfield Accident Findings

["Tezza" <tezza@atinet.com.au>]

MarkBau1 wrote in message

>Do any NSW freight cars/wagons have the emergency portion of the control
valve?
>When I left VR they were still running just a single auxiliary res with no
>emergency res.



I've never heard of it. That doesn't mean it doesn't exist though :-)

>For those unfamiliar with the emergency res., it is an additional supply of
air
>on each car for use when the train is put into emergency, it increases BC
>pressure over what you get with a full service application. It also aids in
>releasing and recharging by getting air into the aux. res faster thus
releasing
>the brakes at each car when a rise of 1 1/2 pounds is detected. Very fast
>releases are possible with this system. For example a 115 car coal train
can be
>released at speeds as low as 5 MPH!



If we make an emergency brake application, it is not supposed to be released
until the train has come to a stand.