Mike Bristow wrote:
In article ,
[D Stock referb]
Not that many. 6 or 7? In the lifetime of a train thats nothing.

It started in 2005; the trains will start to be withdrawn in 2015
IIRC, so it was at around the 2/3rds mark of the stocks life, and
will be in service for a decade.

Doesn't sound unreasonable to me.

Also, wasn't the D stock upgrade a relatively light one? They cut new
windows in the car ends, and replaced some surface materials, but the seats
stayed largely the same. And some work was certainly needed by then: the
trains were 25 years old, and looked it. They'll be around 35 years old
when they start to go, which is a respectable life, though not in the same
league as the venerable A stock.