Originally TOPS numbered from 47301 to 47381, this sub-class was originally built with no train heating equipment and therefore remained as freight locomotives almost exclusively for their working lives.
 They were all fitted with slow speed control for working MGR coal trains (as were a number of Class 47/0s).
 However, during the summer months when train heat was not required, 47/3s could regularly be found hauling the extra trains that the holiday season brought.
The sub-type remained stable until withdrawals started, although an "extra" 47/3, 47300, was created in 1992 when 47468 had its train heating equipment removed and was renumbered.
This was a direct replacement for collision damaged 47343.
Also, 47364 was renumbered to 47981 in 1993 for use on RTC test trains.
Originally TOPS numbered from 47301 to 47381, this sub-class was originally built with no train heating equipment and therefore remained as freight locomotives almost exclusively for their working lives.  They were all fitted with slow speed control for working MGR coal trains (as were a number of Class 47/0s).  However, during the summer months when train heat was not required, 47/3s could regularly be found hauling the extra trains that the holiday season brought. The sub-type remained stable until withdrawals started, although an "extra" 47/3, 47300, was created in 1992 when 47468 had its train heating equipment removed and was renumbered. This was a direct replacement for collision damaged 47343. Also, 47364 was renumbered to 47981 in 1993 for use on RTC test trains.
British Rail Class 47