On 10 Apr, 21:15, Nick Leverton wrote:
In article ,

D7666 wrote:
On Apr 10, 10:34*am, "Paul Scott"
wrote:
~ The capability to move a short distance without the traction supply being
present;"

Where is Sir Isaac Newton ?

Perhaps the DfT are envisaging some sort of Newton's Cradle scheme for
getting trains out during power failures ? *Put a train in at high speed
at the south end and a corresponding one pops out of the north ...

Nick
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I suspect that they are thinking of a hybrid arrangement with
batteries or super capacitors, as have been proposed for light rail
schemes to avoid wiring up historic city squares.

There are a number of alternatives.

1) A development contract to the man who created the clockwork wind up
radio.

2 Or my favourite, RATOG (Rocket Assisted Take Off Gear) used on
carriers in the 1950s when the steam catapult was u/s.

3) Or the hydrogen peroxide powered steam turbine from the Spearfish
torpedo which gave over a megawatt

Over to Prof Breen.