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Photo by Andrea Hartstein
This new large ornithopter (2 m wingspan) by Kenneth Barman was seen at the Blå Hallen meeting 1997. It has a weight of 250 grams, and managed to hold a level course as long as the (very short) rubber motor was propelling. The ribs are individually hinged to the front spar, and the construction features a "return spring" to equalize the motor load on the up- and downstrokes.
