The man was taking off from an air strip at his farm in Hutton Cranswick near Driffield in a Savannah VG small aircraft when it struck a bump.
Motorbike racer James Cowton, who is from Driffield, has died in a crash at the Southern 100 road races at the Isle of Man.
Detectives have confirmed that a crossbow was found at the scene of a murder which took place in the hamlet of Southburn on Friday night.