1,750 HP English Electric Roar: Class 37 Number 37215 Thunders Past Hayles Abbey Halt

Class 37 diesel-electric locomotive number 37215 was built in 1963 at the Robert Stephenson & Hawthorns works in Darlington. Originally numbered D6915, this "English Electric Type 3" was designed as a versatile heavyweight workhorse for both freight and passenger duties. It is powered by a thunderous 1,750 hp English Electric 12CSVT engine, a power unit so distinct it earned the class the nickname "Growlers" due to the bass-heavy tractor-like sound it emits under load. Over its long career, 37215 has carried an extensive array of liveries, including the original BR Green, BR Blue, Railfreight Red Stripe, Railfreight Petroleum, Transrail Grey, and EWS Maroon. This locomotive is a true survivor of the British Rail era, having transitioned from hauling heavy industrial freight to becoming a star of the preservation scene. Now a resident at the Gloucestershire Warwickshire Steam Railway and cared for by The Growler Group, it remains a powerful tribute to 1960s British engineering.

Seen here in 8K 16:9 widescreen thundering past Hayles Abbey Halt on the Gloucestershire Warwickshire Steam Railway on Saturday 25/04/2026 at 15:54.

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