On Wed, 28 Sep 2016 14:08:05 +0000 (UTC), d wrote:

On Wed, 28 Sep 2016 14:07:03 +0100
Recliner wrote:
The 1972 stock probably won't be replaced for at least a decade, as
the 1973 stock is first in the queue.

Wonder if TfL are going for the oldest metro trains in regular public service
in europe, or maybe even the world record?

They'll have trouble beating the IoW. Several other LU fleets have got
to 50 years, including the 1938 and A stocks. I think the Paris Metro
still has MF67 trains built in the early 1970s.

The Pyongyang Metro uses ex-West Berlin U-Bahn stock dating from
around 1960. It looked clean and in good nick when I travelled on it
in 2013:
https://www.flickr.com/photos/reclin...57633424928749

However, the two (known) lines are entirely underground, and the train
speeds seemed quite low.