They’re not ready to retire yet. Time is running out for potential commercial operators or even preservationists to participate in the Direct Rail Services (DRS) sale of three class 37 locomotives. With just one week remaining, these locomotives, which have served the rail industry for over 60 years, are up for grabs, attracting significant interest and demand. Affectionately known throughout the industry as “tractors”, the noisy diesels can still be found in revenue-earning services around the UK.