ryan125hst
Established Member
I was under the impression that on HST's (and all other modern trains for that matter), the train's breaks would only release when all the doors are shut and locked.
However, I have seen two videos on You Tube today that prove this to be incorrect. Both are Grand Central HST's and both clearly show the Central Door Locking lights to be illuminated.
The first shows a GC HST moving slowly through a depot with all of the CDL lights illuminated.
http://www.youtube.com/watch?v=KHXTuz66N5o&feature=related
The second is a very short GC HST being hauled by a class 47 at Darlington. The CDL lights on one of the coaches are clearly on, indicating the doors are unlocked. This is even more strange as it was obviously moving at high speed on the ECML rather than just a slow depot movement.
http://www.youtube.com/watch?v=lUyo1Vs332M at about 1:57 into the video.
Is it possible to disable the CDL on HST's (I'm guessing it's only allowed when no passengers on onboard or in an emergency)? Is this just a Grand Central thing, or do all HST's, or even all passenger trains, have this?
Can it be done on a coach by coach basis as well as the whole train?
What was the purpose of having the doors unlocked, especially on the train that was on the ECML?
Thanks
However, I have seen two videos on You Tube today that prove this to be incorrect. Both are Grand Central HST's and both clearly show the Central Door Locking lights to be illuminated.
The first shows a GC HST moving slowly through a depot with all of the CDL lights illuminated.
http://www.youtube.com/watch?v=KHXTuz66N5o&feature=related
The second is a very short GC HST being hauled by a class 47 at Darlington. The CDL lights on one of the coaches are clearly on, indicating the doors are unlocked. This is even more strange as it was obviously moving at high speed on the ECML rather than just a slow depot movement.
http://www.youtube.com/watch?v=lUyo1Vs332M at about 1:57 into the video.
Is it possible to disable the CDL on HST's (I'm guessing it's only allowed when no passengers on onboard or in an emergency)? Is this just a Grand Central thing, or do all HST's, or even all passenger trains, have this?
Can it be done on a coach by coach basis as well as the whole train?
What was the purpose of having the doors unlocked, especially on the train that was on the ECML?
Thanks