On 31 Jan, 10:51, "Recliner" wrote:
"MIG" wrote in message







On 31 Jan, 07:34, "DW downunder" noname wrote:
"Recliner" wrote in message

.. .

"MIG" wrote in message

This morning I've seen a three-unit train running on the DLR, with
the designation "Special", in between other services.

(Am I the only one having trouble perceiving the "articulated
vehicles" as anything other than units of two coaches?)

Like any other articulated vehicles (particularly trams), the short
coaches share a bogey. The only mainline trains with this
configuration in the UK are Eurostars, but they're quite common
elsewhere.

The diagrams and photos I have seen seem to me to show 2 car bodies
and 4 bogies per unit. Was I looking at the wrong images?

DW downunder

If you mean diagrams like this one
http://upload.wikimedia.org/wikipedi...20080224151715!...
then it would indeed appear to be wrong. *Maybe the wheels were added
as an afterthought?

It's obvious that the artist got carried away. This is a more accurate
drawing of the current stock:http://media.photobucket.com/image/d...pictures/astoc...

Except that the scale is all wrong, with tiny bogies entirely below
the skirts. It's the skirts that are the main problem, because only
the bottom of the wheels is visible below the skirts that cover the
bogies.

One can only assume that they are attached to bogies, but there are
definitely six axles per unit.

At a glance, the wheels either side of the bendy bit seem quite far
apart for a single bogie, but no further apart than the pairs at the
outer ends. I think it's probably an illusion caused by the smallness
of the wheels.