Kitty Hawk revealed on 3 October 2019 that they had been secretly developing a single seat electric aircraft known as the Heaviside. The Heaviside features a front wing with two propellers, six propellers on the main forward swept wing, and a fairly conventional empennage. The propellers are all behind the wings and tilt downward for vertical flight. Later in October 2019, a software timing error lead to a crash of the Heaviside during flight testing.
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