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Carl Friedrich Meerwine (1737 – 1810) studied mathematics, physics and
engineering in his youth. After a degree in civil engineering he began to
work as master builder for the Marquis of Baden.
In addition to his professional duties he worked passionately with the
problem of flying. He rejected the balloon as the solution as it was
impossible to steer. He studied the birds and how they flied and
calculated the wing area that, in his view, was necessary for a man to
fly. For a man of his weight it would have been 12 m˛. The maximum total
weight of himself as the pilot and the weight of the flying machine would
have been 100 kg. He called the aircraft he designed “ornithopter”.
Today we would call it a combination of ornithopter and glider.
The pilot hanged under the centre of gravity of the wings in a special
dress. The machine was controlled with help of the extended legs of the
dress and their feet, on which swan feathers were fastened. The wings were
also moveable, thus imitating a bird. However, Meerwine underestimated the
force which would have been necessary to move the wing enough to fly.
It is said that he made a successful flight with one of his ornithopters
in 1781. Probably he made one or two short glides, possibly combined with
flapping. Without any tail or other auxiliary surfaces his flights could
not have been very long.
According to other sources he failed with flight tests in 1784 and 1785.
A flight apparatus Meerwine constructed was found in the end of the 19th
century by a grandson, over 100 years after it was built.
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