Complex sentence: The intent was to enter the aircraft at the Harvard-Boston Aero Meet in Boston, the aircraft was displayed at the aero meet, and was included in the photographs of the flight line, but it did not leave the ground.
Split into simpler sentences: The intent was to enter the aircraft at the Harvard-Boston Aero Meet in Boston. The aircraft was displayed at the aero meet, and was included in the photographs of the flight line, but it did not leave the ground.