: > [ re the trailing carrying axle of Gresely Pacifics ]
: > :
: > : IIRC it was carried on Cartazzi slides within axleboxes
: > to the
: > : rear frames, rather than any form of pivoted truck. The W1
: > both,
: > : of course...
: > :
: > AIUI it's still called a truck as it's not a fixed (ridged)
: We're getting somewhat pedantic here, but a "truck" is a
: frame holding a carrying axle. Presumably the Cartazzi slides
: provide a notional pivot point ahead of the carrying axle
: so causing it to behave as a truck.
But that is the point, it does allow the said trailing axle to
'pivot', just not in the most usual way, and in any case
'pivoting' is the least important aspect for any leading or
trailing truck on a locomotive, in fact the last thing they
actually should to do is 'pivot', once they are forced to do that
they have not done their primary (design) task well or at all...
: We might have to agree to differ.
No, you just need to find a clue!