927010 SECR Dia. 1426 Covered Van No. DS776, Departmental brownRapido Trains UK unveils classic South Eastern & Chatham Railway van. The SECR used its standard 9ft 6in wheelbase steel underframe for a new cover van that would set the standard until Nationalisation in 1948. The Diagram 1426 van was different to previous SECR designs and featured an elliptical roof, end ventilators, lift link brake gear and self contained buffers. The design was so successful that it became the basis of the standard Southern