The Mutual Blackbird was a late 1920s two-seat open cockpit sporting biplane.
The Blackbird was built by Mutual at their factory in Kansas City, Missouri and first flew later that year.
Although the sole aircraft X87M successfully completed some long-distance flights, no further production was undertaken.
The Blackbird flew successfully for 18 months before being damaged in a crash on landing near Kansas City on return from New York on 13 April 1931.
Data from American aircraft : Mi-My[1]General characteristics Performance