Designed by Sir Nigel Gresley, A4s were first brought into service on the LNER in 1935. 35 locos were built of which 6 are preserved including the World Steam Record holder 'Mallard' which achieved 126 MPH in 1938.
Wheel arrangement...................4-6-2
Tractive effort.....................35,455lbs
Cylinders (3).......................18.5 ins diameter x 26 ins stroke
Driving wheels......................6ft 8ins...or 2m
Weight..............................loco 102 tons 19cwt
Weight..............................Corridor tender 64 tons 19cwt
Tender capacity.....................Coal 9 tons
Tender capacity.....................Water 5000 gallons
Boiler pressure.....................250lbs per sq inch
Data................................Steam Dreams / Stewart Currie
Photo from James & Martin's Picture Collection Copyright 'Jampics' m.hawkes7@ntlworld.com