Edward Purkis Frost (1842 – 1922) was an English pioneer of aviation.
Frost lived at West Wratting Hall in Cambridgeshire and became a Justice of the Peace.
[1] Frost began studying flight in 1868 and built a large steam-powered flying machine with both fixed and flapping wings from 1870 to 1877.
In collaboration with several colleagues he started another large similar craft in 1902 with an internal combustion engine.
[1] Another, however directly contradicts this assertion, claiming that it was suspended from a tree and could be observed to rise slightly on every downbeat of the wings.