Hornby 3005 m TT steam locomotive Night Hawk # 600278 of the BR England era 2/3 DSS Next 18 with DSS Next 18, sehr gut erhalten without original packaging, very good, very little used with DSS. Sexpress steam locomotive. Nominal size TT, scale 1:120, track width 12 mm without description, without additional parts, otherwise sales condition very good to almost neuwertig , SEE PHOTOS. Model: TT gauge direct current. Class A3 Night Hawk steam locomotive in BR livery. Prototype: The Class A3 was a series of express steam locomotives designed by Nigel Gresley for the London and North Eastern Railway (LNER). The locomotives were built between 1922 and 1935 and were intended for use on the East Coast Main Line. The Class A3 was a development of the Class A1 and was improved by installing a larger.