London Banter - View Single Post - Network Rail "incorrectly designed" the Gospel Oak

BevanPrice · February 10th 17, 05:10 PM posted to uk.railway,uk.transport.london

On 10/02/2017 12:55, Graeme Wall wrote:
On 10/02/2017 12:22, Anna Noyd-Dryver wrote:
Graeme Wall wrote:
On 10/02/2017 09:54, d wrote:
On Thu, 09 Feb 2017 19:42:06 +0000 Charles Ellson
wrote:
On Thu, 9 Feb 2017 16:37:46 -0000 (UTC), Recliner
wrote:

wrote:
On Thu, 9 Feb 2017 16:04:47 -0000 (UTC) Recliner
wrote:
wrote:
The vast majority of freight is hauled by class 66
and 70 diesels and the main electric freight loco the
class 92 can run off 3rd rail anyway.

The main electric freight loco is the class 90. Class
92s are little used.

You sure about that? I thought the 90 was a passenger
loco that only occasionally did light freight because its
built for high speed, not
pulling
power.

When did you last see a class 92 hauling anything? Most
electric freight are hauled by class 90s.

Class 92s tend to be seen with Channel Tunnel traffic, there
is no current reason for them to be preferred over straight
25kV locos away from such traffic.

So there's no freight on southern region then?

Al diesel hauled round here, which is why they are discussing
the "electric spine" running 25kV from Reading to Southampton.

The problem with electric freight on 3rd rail is that the current
drawn to move a competitive-sized freight at a competitive speed,
is very close to the current at which the circuit breakers trip.

Which is why, I suspect, the 92s were never very useful.

Plus, I understand that an original plan was for Class 92s to take
freights beyond Frethun in France, but for various reasons, that never
happened.