Panamarenko
Grote Quadru Flip-Flop [Big Quadru Flip-Flop], 1998
Panamarenko harks back in this work to his pedal-powered flying machines with insect wings from the early 1970s. The four-winged aircraft is powered by a pilot who tensions a spring by pedalling. When the spring causes the wings to flap
open, they continue to vibrate afterwards at high speed. Panamarenko drew his preliminary design for Big Quadru Flip-Flop in 1990, but it was not finally constructed until 1998.