1930 in aviation
February 18 - Elm Farm Ollie becomes the first cow to fly in an airplane and also the first cow to be milked in an airplane.
May 15 - Aboard a Boeing tri-motor, Ellen Church becomes the first airline stewardess (the flight was from Oakland, California to Chicago, Illinois).
May 24 - Amy Johnson lands in Darwin, Australia becoming the first woman to fly solo from England to Australia (she left on May 5 for the 11,000 mile flight).
October 5 - British Airship R101 crashed in France en-route to India on its maiden voyage.