3903 Class O2/2 'Tango' BR Late Crest No.63940 (GN Cab/Tender) Steam Locomotive Wagon Together with full instruction on

Together with full instruction on how to build and wire up these units

in the instructions below have shown a typical set up where the frog is isolated by an optional track break – this avoids unwanted short circuits if you forget to throw the point

Today the entire fleet is concentrated on the Northern franchise

triangles and turntables: easy wiring

3903 Class O2/2 'Tango' BR Late Crest No.63940 (GN Cab/Tender) Steam Locomotive Wagon Together with full instruction onIntroduced by the Great Northern Railway in 1921 to a design by Nigel Gresley, these powerful 2 8 0s were built to haul heavy mineral trains. Several batches were built over a 22 year period by the GNR and LNER, with numerous improvements such as better cabs and bigger tenders. Heljan's model depicts the later '02 3' and '0 2 4' variants. FEATURES 21 pin DCC interface Factory fitted speaker in the tender NEM couplings Sprung buffers Exterior Details