July 4

What happened on July 4 in aviation and space history.

• July 4, 1927

  First flight of the Lockheed Vega

  First flight — The Lockheed Vega flew for the first time on 1927-07-04.

• July 4, 1957

  First flight of the Ilyushin Il-18

  First flight — The Ilyushin Il-18 flew for the first time on 1957-07-04.