Often referred to as "Growler's" or "Tractor's", here is a small compilation of Class 37's thrashing, some very claggy and other traction movements.

0:00 21/08/2021 37601 'Perseus', Sheffield
0:43 02/05/2022 37250, Bedale (Wensleydale Railway)
2:10 01/07/2021 37800 'Cassiopeia', Derby
2:32 03/08/2021 37558 'Avro Vulcan XH558', Carlisle
2:46 12/03/2022 37218 & 37425 'Concrete Bob', Marsden
3:17 21/08/2021 37601 'Perseus', Chesterfield
3:24 17/08/2020 37421, Preston
3:37 22/07/2021 37667 (D6851) & 43055, Huddersfield
3:50 04/07/2021 37422 'Victorious' & 37423 'Spirit of the Lakes', Dinting
4:36 03/08/2021 37419 'Carl Haviland' & 66303 ' Rail Riders', Carlisle
5:07 31/01/2022 37425 'Concrete Bob', Huddersfield
5:17 04/07/2021 37423 'Spirit of the Lakes' & 37422 'Victorious', Honley

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