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Hargrave
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Letter from Wilbur Wright to Lawrence Hargrave
Letter from Wilbur Wright to Lawrence Hargrave
Letter from Wilbur Wright to Lawrence Hargrave
Wave-propelled Vessel 30
No17 Motor 32
No16 Engine 31
Figure-of-eight described by trochoidal plane
Various flying machine models 8
Trochoidal artificial snake 7
Lawrence Hargrave and his family
A hydroplane model developed by Lawrence Hargrave
Rubber-driven flying machine
Rubber-driven flying machine
Lawrence Hargrave (1894)
Conservator's diagram of the Lawrence Hargrave Box-Kite
Lawrence Hargrave and his three-cell box-kite
Lawrence Hargrave and his single-cell box-kite
Lawrence Hargrave and his family
Lawrence Hargrave
Four-winged one-cylinder balanced motor
Hargrave with four-winged balanced motor
Hargrave with three-celled kite
80ft two-celled kite
Four-celled kite
Two-celled kite
Hargrave with I-celled kite
Four-decker compressed-air driven model
Twin double-acting cylinder motor
Twin double-acting cylinder motor
Hydroplane model (close-up)
Hydroplane model
Hydroplane model
Hydroplane model
Close-up of Otto-cycle engine
Otto-cycle engine four-cylinder I crank engine
Objects used in soaring tests
Objects used in soaring tests
Objects used in soaring tests
Objects used in soaring tests
Objects used in soaring tests
Objects used in soaring experiments
Objects used in soaring experiments
Objects used in soaring experiments
Objects used in soaring experiments
Two cylinder steam engine
Two cylinder steam engine
Objects used in soaring experiments
Soaring experiments
Soaring experiments
Soaring experiments
Method of testing objects for soaring without damage
Steam engine with flash boiler and balanced wings
Steam engine with flash boiler and balanced wings
Small Laval turbine on screw
Hargrave and James Swaine experimenting
Further evolution of the cellular kite
Evolution of the cellular kite
Some steam-jet motors
A larger model of the flapping wing machine
Steam engine operating flapping wings
Duplicate of engine sent to America
Wave-propelled vessel weighing 12 5lb
Spiral wire trochoiding artificial fishes
Anemometer or windmill
Two boats trochoiding each other
Two trochoidal plane propelled boats
Rubber-driven flying machine
An excellent clockwork model
Various flying machine models
Trochoidal artificial snake
Spiral wire simulating six-footed motion
Spiral wire simulating leech and centripede motion
Compressed air flying machine shown at Chicago Exhibition
Compressed air bow screw machine
Larger model compressed air flying machine
Compressed air flying machine
Three-cylinder engine revolving on fixed crankshaft
Figure-of-eight described by trochoidal plane
Naptha engine machine
48-band stern screw machine
Bow and stern screw dihedral angle machines
Arrangement of gears to test engine push
First compressed air engine
Large machine to test effective push (weight 17 5lb)
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