... was doing 60 mph back in the 1960s with no ATO in sight. So was 62 stock on the Central line, but it was not authorised for use in tunnel sections. I'm not surprised. Could you ...water flumes, so we'd have something akin to a water park under central London. Now that does sound like a good idea! Ahem. http://groups.google....

... mph back in the 1960s with no ATO in sight. So was 62 stock on the Central line, but it was not authorised for use in tunnel sections. I'm not ... a clean to remove all the dust first, and some padded lining to cover the tunnel walls might not be a bad idea...so we'd have something akin to a water park under central London. Now that does sound like a good idea!

...already, what are they waiting for? The A stock was doing 60 mph back in the 1960s with no ATO in sight. So was 62 stock on the Central line, but it was not authorised for use in tunnel sections. I'm not surprised. Could you imagine the piston effect that would have? People waiting on platforms would be...

In message <c24b2371-d517-406b-8d25-801ae467e159@v23g2000pro.googlegroups.com>, Boltar <boltar2003@yahoo.co.uk> writes Why arn't they using it already, what are they waiting for? The A stock was doing 60 mph back in the 1960s with no ATO in sight. So was 62 stock on the Central line, but it was not authorised for use in tunnel sections. -- Clive

... that would require closing the line.   It might not be possible ... gravity? It is because the Central line has full automatic train ...a change from DC to AC traction would make performance worse...1992 stock, whilst the Northern line's 1995 stock has two...the motors on the Northern line trains be more powerful, thus...6 stock came along, the AC motors became suited to the...

...why that would require closing the line. It might not be possible to...couple a DC unit and an AC unit in a single train,... gravity? It is because the Central line has full automatic train ... a change from DC to AC traction would make performance worse,... 1992 stock, whilst the Northern line's 1995 stock has two ... the motors on the Northern line trains be more powerful, thus ...

...why that would require closing the line.   It might not be possible to...couple a DC unit and an AC unit in a single train,... reduce the performance of the central line trains to the slug ... gravity? It is because the Central line has full automatic train ... a change from DC to AC traction would make performance worse,... 1992 stock, whilst the Northern line's 1995 stock has two ...

...why that would require closing the line. It might not be possible to... a DC unit and an AC unit in a single train, ... reduce the performance of the central line trains to the slug ... performance of the northern line ones. The central trains are the ... gravity? It is because the Central line has full automatic train ... a change from DC to AC traction would make performance worse,...

Paul Scott wrote: It is because the Central line has full automatic train operation (ATO), which for normal day to day use drives the trains nearer the limits than It can't be ...the northern trains still chug along at a leisurely pace and take their time getting to it. Perhaps the whole line has a low linespeed now, dunno. B2003

...why that would require closing the line. It might not be possible to...couple a DC unit and an AC unit in a single train, ...t reduce the performance of the central line trains to the slug ... performance of the northern line ones. The central trains are the ...by gravity? It is because the Central line has full automatic train ... a change from DC to AC traction would make performance worse, ...