Class 20 - English Electric Type 1 - Bo-Bo

• Built 1957-68 by English Electric Company at Vulcan Foundry, Newton Le Willows or Robert Stephenson & Hawthorn, Darlington.
• Engine English Electric 8SVT Mk II of 746 kW (1000 hp) at 850 rpm.
• Main Generator English Electric 819/3C.
• Traction Motors English Electric 526/5D (20007 - 42/301/904) or 526/8D (others).
• Maximum Tractive Effort of 187 kN (42000 lbf), Continuous Tractive Effort of 111 kN (25000 lbf) at 11 mph.
• Power at Rail of 574 kW (770 hp).
• 35 t Brake Force. Air and vacuum train Brakes.
• Design Speed 75 mph, Maximum Speed 60 mph.
• 14.25 m length over buffers. Wheel Diameter 1092 mm.
• Weight 73.5 t, Route Availability (RA) Index 5.
• Multiple Working - Blue Star Coupling Code.
• Nickname "Choppers."

Sub Class 20/0.

Members 20007 to 20215.

Sub Class 20/3.

All have train air brakes only, twin fuel tanks and non-standard multiple working jumpers. Disc indicators or headcode panels have been removed. Members are: 20301 to 20311 (being reclassified from 20/0). These locos are being refurbished for Direct Rail Services.

Sub Class 20/9.

Owned by Hunslet-Barclay Ltd. All have train air brakes only. Members are: 20901 to 20906.

Class 20 Photographs.

Class 20/9 20901 with a Weedkiller train at Westbury on the 8th April 1992. 158825 sits in a siding on the left of the picture.	Chopper 20227 at the Leicester Open Day on the 6th September 1992.
Another shot of 20227 from the back end. Behind this loco is Deltic 55015 "Tulyar."	20's in the scrap lines at Stapleford Yard, Toton depot on the 13th June 1993. Numbers are 20055, 20082, 20090, 20154, 20172, 20177, 20186 and 20195.

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(C) Copyright 1999, Written by Mark Chatwin.