 The DD class locomotives were the first product of this exercise.A 4-6-0 design equipped with 5 ft 1 in driving wheels, saturated steam boiler and Belpaire firebox, the DD reflected the considerable talent of VR's design team, which included ex-Beyer, Peacock and Company recruit Eugene Siepen, future VR Chief Mechanical Engineer Alfred Smith, and Rolling Stock Branch manager Thomas Woodroffe.The first DD was number 560, constructed at the Victorian Railways' Newport Workshops and entering service in 1902.