Jean-Marie Le Bris (1817 - 1872) and
the Albatross
In
1856, two French naval officers accomplished brief though uncontrolled
flight, Felix duTemple and Jean-Marie Le Bris who built a glider
shaped like an albatross, a bird he had studied on his sea voyages.
Charcoal of Le Bris by H. Schneider
The Albatross
The body of the craft,
which would support the pilot, was shaped like a canoe. Each narrow,
arching wing was 23 feet (7 meters) long and adjustable by pulleys and
cords. They provided a lifting surface of 215 square feet (20 square
meters).
Le Bris : The Albatross, 1868
Le Bris tested his first
aircraft in 1857 and successfully made a short glide on his first try, but
a second attempt resulted in a crash and a broken leg. By 1868, Le Bris
had developed a second, larger version of his glider, which made several
successful manned test flights before it crashed and was destroyed.
Le Bris' Patent
1857
"...Le
Bris's first experiment was conducted on a public road at Trefeuntec, near
Douarnenez. Believing, like Count D' Esterno that it was necessary that
the apparatus should have an initial velocity of its own, in addition to
that of the wind, he chose a Sunday morning, when there was a good 10-knot
breeze from the right direction, and setting his artificial albatross
horizontally on a cart, he started down the road against the brisk wind,
the cart being driven by a peasant.
The bird, with extended
wings, 50 ft. across, was held down by a rope passing under the rails of
the cart and terminating in a slip knot fastened to Le Bris's wrist, so
that with one jerk he could loosen the attachment and allow the rope to
run. He stood upright in the canoe, unencumbered in his movements, his
hands being on the levers and depressing the front edge of the wings, so
that the wind should press upon the top only and hold them down, their
position being, moreover, temporarily maintained by assistants walking
along on each side."
1867
"...Once
only did he obtain something like an ascension, by starting from a light
wagon, which was not in motion. He was on the levee of the port of
commerce at Brest, the breeze was light, and the gathered public was
impatient, through failure to realize that success depended wholly on the
intensity of the wind.
Le Bris was hoping for a
gust which should enable him to rise; he thought it had come, pulled on
his levers, and thus threw his wings to the most favourable angle, but he
only ascended a dozen yards, glided scarcely twice that distance, and
after this brief demonstration came gently to the ground without any
jerk."
Le Bris Replica by M. Jenö Kiss
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