Hornby R40167 OO Scale Midland Pullman Mk3 First Open M41183 Era 11 Electric Robust landing gear with oversized G5068594 Robust landing gear with oversized tires for operation from a variety of surfaces Ability to use ABC boards interactively so that “Automated Shuttle Trains” can also share main line use they became only the third company certified to operate steam locomotives on the mainline Mk3a stock differs from Mk3 stock due to the inclusion of buffers as well as a different electrical system that uses motor generator units in each coach to power air conditioning and other ancillaries Mk3a stock was built until 1984