The best way to measure the speed is get a good GPS receiver - although its
use is obviously limited to surface sections. AFAIK the Picadilly line 1973
stock has a top speed of 45 mph. 60 mph on A60/62 Metropolitan line stock is
only achievable west of Harrow on the Hill.

"Iain" wrote in message
...
"Nes" wrote in
:

They get up to that speed in passenger service? I wouldn't really
know, as I haven't been as far Epping on 92TS. Last time I went that
far was on the old 62 stock.

Wouldn't surprise me if they do approach that speed. There's a portion of
the Central Line between Leyton and Leytonstone where the track runs
parallel to the A12, which is a 3-lane dual-carriageway with a 50mph limit
at that point. The trains usually run at about the same speed as, or
sometimes a little faster than, the middle-lane traffic, which is probably
sitting at about the 50mph limit.

Iain

Met is 50

In article , "Roger the
cabin boy (Lappy)" writes
Met is 50


I thought the Central went at up to 100kph?
--
Andrew
Electronic communications can be altered and therefore the integrity of this
communication can not be guaranteed.
Views expressed in this communication are those of the author and not
associations or companies I am involved with.

Presumably these stats all relate to surface sections. It would be
interesting to learn what the highest/average speeds are in the tunnelled
sections.

Obvious constraints are the frequency of station stops, gradients and
curves - I would have thought the average speed was probably around 30 mph
or less.

Also in the case of 'tube' lines there must also be issues relating to air
pressure and resistance, the train is after all acting rather like the
piston in a bicycle pump. As a child I recall rather uncomfortable 'ear
popping' on the Northern Line section between Kennington and Waterloo.


"Andrew P Smith" wrote in message
news
In article , "Roger the
cabin boy (Lappy)" writes
Met is 50


I thought the Central went at up to 100kph?
--
Andrew
Electronic communications can be altered and therefore the integrity of
this
communication can not be guaranteed.
Views expressed in this communication are those of the author and not
associations or companies I am involved with.

On Fri, 16 Jan 2004 09:12:28 -0000, "Gunslinger"
wrote:

Presumably these stats all relate to surface sections. It would be
interesting to learn what the highest/average speeds are in the tunnelled
sections.

When the Vic line opened they claimed speeds of 50mph between Finsbury
Park and Seven Sisters. That must be near the top of the range for
in-tunnel tubes.

Andrew P Smith wrote in message ...

I thought the Central went at up to 100kph?

Which is about 60 miles an hour or a little more.

(Nathan Whitington) wrote in message m...
Andrew P Smith wrote in message ...

I thought the Central went at up to 100kph?

Which is about 60 miles an hour or a little more.

The 92 stock is banned above 85kph post chancery lane.
The 67 stock was at one stage permitted to about 55mph, but now will
trip at 47mph.
I've known refurbished 73 stock to hit 55mph between Acton and
Hammersmith EB.
The London Underground speed record (so I've heard) is A stock running
empty and downhill, reaching 86mph.

In article , Nathan
Whitington writes
Andrew P Smith wrote in message
...

I thought the Central went at up to 100kph?

Which is about 60 miles an hour or a little more.

Which is faster than speeds quoted elsewhere.
--
Andrew
Electronic communications can be altered and therefore the integrity of this
communication can not be guaranteed.
Views expressed in this communication are those of the author and not
associations or companies I am involved with.

"David B" wrote in message
...
The best way to measure the speed is get a good GPS receiver - although
its
use is obviously limited to surface sections. AFAIK the Picadilly line
1973
stock has a top speed of 45 mph.

The Piccadilly Line has a line speed (the maximum speed allowed on the line)
of 45mph, the '73 tube stock is capable of exceeding this by quite a bit.
I've had a non-refurb totally off the clock (it went up to just over 60mph).
Of course this dosn't take account for any inaccuracy on the speedo, and as
the re-furbs are about 2 tons heavier they're probably a bit slower.
--
Cheers, Steve.
If The Good Lord had meant for us to be fiscally prudent, He would not have
given us the platinum credit card...
Change colour to PC Plod's lights to reply.

In article , David B wrote:
The best way to measure the speed is get a good GPS receiver - although its
use is obviously limited to surface sections. AFAIK the Picadilly line 1973
stock has a top speed of 45 mph. 60 mph on A60/62 Metropolitan line stock is
only achievable west of Harrow on the Hill.

I tried to do this on the Met line the other day, but couldn't seem to
get sufficiently good GPS reception (yes, this was in the surface
sections).

I've also tried doing the same on the SWT Reading line, which seems to
work well on the Junipers, but not very well at all on the 455s and
421s/423s, for some reason.

Perhaps there are GPS receivers with better sensitivity than my basic
eTrex, though?

Niklas
--
"The cod distributed to chip shops throughout Britain will generally first have
been sent to Battersea for dipping."