With all due respect to insider, I think some of the "facts" in the log may have got a bit confused in the manner/order they are stated. For example,

1.  HST^▸ (High Speed Train (Inter City class 43 125 units)) Power Cars don't need "revving" to get air pressure.  Driver or Control wouldn't have said that. The compressors are electrically powered, not mechanically driven off the engine like Turbos etc.

Wonderful....so vein......!

Really, without causing any undue panic, it is abit an oversight really, as the old fail-safe system has been replaced with one which is obviously less so.

So should power to train wire 12 be lost for any reason (i.e. dislodged or disconnected 36-way, CCB trip either end, Master Switch to OFF either by error or unsolicited) you potentially massively extend the braking distance of the train.

Scenario 1 - You are running along and the train hits some bulky debris on the line, this knocks out the 36-way jumper and the driver applies the anchors. The debris was dropped by a train ahead of you which also stopped quickly because of a sudden fault. Your train is now in an uncontrolled slide heading towards the back of the stationary train.

Scenario 2 - You are driving along at high speed and you suddenly see the line ahead is blocked; you hit the EMG plunger, Put the MC to OFF, anything that might help in the panic and then take cover. Train Wire 12 is now de-energised, you hit the obstruction at 110 in an uncontrolled slide rather than 75 with all the WSPs behind you doing their job.

Scenario 3 - You suffer an onboard fire whilst on the move. For the Fire Supression system in a powercar to function, the MC has to be in the OFF position. Granted, the Inergen will not discharge until the set speed falls below 6mph, but upon hearing the firebells, the Driver may instinctivley operate the EMG plunger and shut the desk down. Weeeeeeeeeeeee off we go into a slide....

Just a little bit of a design flaw!!!

Welcome to the forum 57604! Or can we call you "Pendennis"? 

Sorry you're right,

X

This situation is not possible, as each vehicle has an individual WSP system and whilst on 'other' forums, it has been claimed that the CCB tripped in the leading power car which (as has already been commented upon) is not surprising considering that the desk has been destroyed inevitably causing electrical shorts, this would have only disabled the WSP system in the leading powercar, not throughout the train.

The flats (Burns is probably a more appropriate word) were caused by...how can i put it...a slight operational error when the set was being rescued, but considering the unusual circumstances and the pressure to recover the stricken set, it is understandable.