50 Pence - Elizabeth II Royal Air Force Centenary - English Electric Lightning

The English Electric Lightning holds a specific place in RAF history as the only British-designed fighter capable of sustained supersonic speed in level flight — a capability achieved, unusually, by stacking its two Rolls-Royce Avon engines vertically rather than side by side. Jersey entered the commemorative coin market aggressively in the 2000s and 2010s, issuing gold-plated brass pieces across dozens of RAF centenary subjects in 2018, this Lightning piece among them. The series was produced for the collector market rather than circulation.