: > wrote: : >
: >>
: >> "simon" wrote : >>
: >>> This may sound stupid but it clicked that you can recognise a non : >>> corridor : >>> coach by the missing corridor connections ! : >>
: >> I'm going off at a tangent here, but talking about corridor connections, : >> can : >> anyone explain the logic of off-set corridor connections on the end of : >> mail : >> coaches? : >>
: >
: > Mail coaches were a total "no-go" area for the Public and railway staff. : > The offset corridor connections ensured that there could be no : > "accidental" : > thoroughfare. OTOH sorting coaches needed additional storage areas : > for both sorted and unsorted mail so the corridor connections were a : > neccessity. Sorting and storage coaches normally ran as fixed groups : > and every major station had a turntable, so correct handing wasn't a : > major problem. : >
: >> I understand that you may want to excluded 'Joe Public' from walking : >> from a : >> passenger coach into a mail coach (although I'd have thought a simple : >> lock : >> would serve that purpose), but the off-setting of corridor connections : >> must : >> make marshalling of mail coaches difficult. : >>
: >> Some also appear to be off-set diagonally, which would mean they wouldn't : >> connect with any other coach. : >>
: >
: > I've never seen/spotted that!?! : >
: > Greg.P. : : But wouldnt the lack of a corridor connection be sufficient to ensure no : accidental access ? Seems a bit excessive to offset the corridor as well. :
Greg is talking out of his arse, as John said, a simple lock would have secured the corridor connections, just as locks prevented unauthorised access from the side door. As for turning the fixed formations, if that was indeed required they would have been turned on the nearest triangle - as most carriage sidings didn't have turntables - and considering that they ran both up and down mail-trains why not just have two mail pick up coaches in each formation, one for each direction.