Holden's Lightning flight

On 22 July 1966, Walter "Taffy" Holden, a 39-year-old engineer in command of No. 33 Maintenance Unit RAF with limited experience flying small single-engine trainer aircraft, inadvertently engaged the afterburner of a Mach 2.0–capable English Electric Lightning during ground testing at RAF Lyneham.

Source: Wikipedia — Holden's Lightning flight (CC BY-SA 4.0)