On 1 April 2018 the RAF celebrates its centenary, marking 100 years since its creation in 1918 out of the merger of the Royal Flying Corps and Royal Naval Air Service. The RAF has always been at the forefront of technology, both as an innovator and as a user of innovations. To celebrate the RAF's first 100 years, Jonathan Falconer showcases a top 100 technical innovations that have been used and/or devised by the Service over the past century, ranging from heated flying suits to radar; and from panel fasteners to the VTOL Harrier.