Prop Plane Pins and Buttons

Halki Greece Map vintage travel poster.

Johns Island, South Carolina map

Cute Astronaut Pilot Playing Plane Toy Cartoon

Great Salt Lake Utah vintage style map decorated with a toy bi plane.

Mahé, Seychelles map and beautiful bi plane cartoon.

Oneida Lake new york map

New York City Vintage map poster print.

Fruita - Capitol Reef National Park Utah travel poster . Take a Trip!

Lake Turkana Kenya Map with vintage bi plane

Vail Colorado vintage travel poster print art.

Snowdonia national park map

The World United Arab Emirates map travel poster.

Barbados Island map with a retro old bi plane.

lake chamption USA Canada border travel poster.

lake marion South Carolina USA map travel poster.

Africa travel poster "travel into Adventure"

Estonia Travel map poster art print.

Arabia Desert vintage style travel poster

Eysturoy Faroe Islands travel map.

Explore the Wilderness! Visit America's national parks travel poster

The twisted aerofoil shape of modern aircraft propellers was pioneered by the Wright brothers. While some earlier engineers had attempted to model air propellers on marine propellers, the Wrights realized that an air propeller (also known as an airscrew) is essentially the same as a wing, and were able to use data from their earlier wind tunnel experiments on wings. They also introduced a twist along the length of the blades. This was necessary to ensure the angle of attack of the blades was kept relatively constant along their length. Their original propeller blades were only about 5% less efficient than the modern equivalent, some 100 years later.

Seneca Lake, NYC lake map travel poster

Lake Nipigon Canada travel map.

mojave desert travel map with a light aircraft.

Pyramid lake Nevada USA map travel poster.

Bridger-teton national forest map Wyoming travel poster

Trysunda Sweden map with a classic red bi plane.

Thingvallavatn lake Iceland travel map poster print.

Lake Montriond France vintage style travel poster

Egypt Travel poster print art.

Lake vico Italy travel poster.

Europe By Air - Vintage style European airport travel poster.

Clear Lake California USA map decorated with a beautiful old red bi plane.

Florida Keys Travel poster of a sea plane flying over the landscape.

Randsfjorden Norway travel poster lake map.

Vintage Travel Poster featuring an old prop plane flying past an island.