Location: Ulster Transport Museum / Museum of Innovation

Through extensive testing of every feature, James Martin refined his design to accommodate individual pilots’ needs. Taking into account differences in height, he employed adjustable footrests and seats. Live testing also revealed more about the experience of being ejected, which led to further innovations including the installation of thigh guards to prevent a pilot’s legs being forced apart by air blasts. This particular model would have utilised two ejection guns to fire the seat out of the plane. Once at a height of 24ft, a drogue gun would fire and stabilise the seat in the air, allowing the pilot to free themselves.