Alan Darbyshire is a retired Further Education lecturer and experienced textbook author for Intermediate GNVQ and AVCE. He drafted several of the mechanical engineering units for the BTEC National specifications.

Charles Gibson completed an aeronautical mechanical engineering apprenticeship, then spent 16 years in the Royal Navy maintaining military helicopters before retiring from the military in 2008. Since then, he has worked in Further Education as the Head of Aeronautical Engineering at City of Bristol college where he also taught on several programmes, including BTECs in Aeronautical Engineering and Foundation Degrees. In 2013 he transferred to Yeovil college where he continues to teach on Engineering programmes from Level 2 to Level 5. He has also been involved in the writing of engineering technical knowledge qualifications for several engineering apprenticeship standards.