7069-7129 / 12000-12042
Details of the four classes allocated numbers in this range are included on other pages, as follows:
- 7069-7078 / 12000-12001 : British Rail Class D3/6, twin motor
- 7079 / 12002 : British Rail Class D3/6, twin motor
- 7080-7119 / 12003-12032 : British Rail Class D3/7, single motor, jackshaft drive
- 7120-7129 / 12033-12042 : British Rail Class D3/8 (Later TOPS Class 11), twin motor
NB: Production of the last-mentioned class continued after Nationalisation, with the following two locomotives emerging as M7130 and M7131 (later 12043/12044) and the remainder carrying BR numbers 12045-12138 from new. Although allocated TOPS Class 11, none of these locomotives were renumbered. When 12082 was re-registered for use on the mainline, it was allocated TOPS number 01553 in the ex-industrial registered shunters list.
Read more about this topic: LMS Diesel Shunters