The change in direction by the Newbury Diesel Company in terms of marine engineering started in 1964 when FT Everard & Sons Ltd asked for a bridge control system for the Sirron engines fitted in their ships. A GA Mkll engine was successfully fitted and after testing the engine was placed in the tug EA Everard. Subsequently, further designs were produced and it was realised that this was the future for the company. The change from manufacturing large two stroke engines to four stroke non reversing was a step too far. The new T type engine was successful but the Newbury Diesel Company would need considerable investment in expensive new plant in order to keep abreast of modern oil engine design and manufacture. In 1981 then Newbury Diesel Controls Ltd as it was then named, moved to a new premises to pursue the more sophisticated side of marine engineering. Finally in 1987 the business was sold to Radamec who today continue to provide the whole range of control equipment from their Newbury premises as Radamec Control Systems Ltd..