DHP1 Clayton Prototype Profile and Models

DHP1 Clayton Prototype

DHP1. Unknown date & location. © via KR Models

DHP1, meaning Diesel Hydraulic Prototype number 1, was a prototype Type 3 mainline diesel locomotive built between 1962 and 1963 by Clayton to demonstrate their wares to British Railways. It was designed for mixed traffic work, being equipped with steam heating facilities for working passenger trains. It was painted red, with the cab area above bonnet-level height painted cream. Visually similar to their Class 17 Type 1 product, though longer, and with the radiator grilles in the ends of the engine covers rather than the sides. The locomotive saw little service, mainly around the International Combustion works in Derby. The locomotive was broken up by Clayton's in April 1967.

(Information provided via Wikipedia)

Type of Locomotive



Clayton Equipment Co

Build Dates

1962 to 1963

Total Built


Tractive Effort

37,500 lbf

Power Output

1,200 hp

Top Speed

90 mph

Wheel Configuration


Operated By

British Railways

Main Duties

Mixed Traffic

In Service Until


Surviving Examples