Class 35 'Hymek' Diesel Hydraulic Locomotive
No D7018
Livery-Green small yellow warning panels
Built by Beyer Peacock ay Manchester in 1962.
First allocated Depot was 82A Bristol Bath Road
Withdrawn in March 1975
D7018 Hymek

D7018 was first located at Didcot Railway centre for a number of years before moving to Williton with sister
loco D7017.

The loco underwent a large overhaul following a major engine failure in 1995, at the time of writing is
expected to re-enter service during 2016.


Technical Specification

Engine: Maybach MD870 V16 twin turbocharged and intercooled 87 litre diesel
Transmission: Mekydro K184 4-speed hydraulic gearbox
Weight: 73 tons
Length: 52 ft
Output: 1740 hp at 1500 rpm
BR Power Rating: Type 3
Speed: 90mph
Fuel Capacity: 600 gallons
Wheels: B-B
Tractive Effort: 49,000 lbs

History
Manufacturer: Beyer-Peacock (Hymek) Ltd, Manchester
Class: Class 35
Lifespan 1961 - 1975
Number Built 101
Role: Mixed traffic

The Hymeks were intended as a medium power mixed traffic loco, but were often rostered to deputise for
some of the WR's largest steam locos on 13 and 14-coach trains in their early years. 101 locos were built
up to 1964 and allocated all over the Western Region. They settled down to become a successful and
capable fleet.

Introduced in 1961-4 the Hymeks careers were cut short by BR's standardisation with diesel electric types.
The first withdrawals came in 1971, with some locos scrapped being less than nine years old. Full
withdrawal of the fleet was planned for 1973, and a farewell tour, The Hymek Swansong, ran in
September. Due to loco shortages, ten Hymeks soldiered on to 1975 when they were finally withdrawn. Of
these, four have survived into preservation, our two - D7017 and D7018, D7029 with the Diesel Traction
Group, and D7076 with the Bury Hydraulic Group.