THE sudden withdrawal of the small fleet of two-car Class 456 EMUs further illustrates the perhaps unpleasant fact that BR Mk.3 power-door EMUs have almost reached the end of their operational lives. Yet, not a single model of this type of stock is available in ‘OO’ gauge as a mainstream model, in any form, be it third rail Class 455 and 456; or the dual voltage Class 319. Not a hint of the 25Kv AC Class 318, Class 320 and Class 321 type has been detected either.
