{"id":16126,"date":"2017-11-16T09:42:40","date_gmt":"2017-11-16T13:42:40","guid":{"rendered":"http:\/\/hartzellprop.com\/?p=16126"},"modified":"2017-11-16T09:43:32","modified_gmt":"2017-11-16T13:43:32","slug":"interesting-facts-aircraft-propellers","status":"publish","type":"post","link":"https:\/\/hartzellprop.com\/interesting-facts-aircraft-propellers\/","title":{"rendered":"10 Interesting Facts About Aircraft Propellers That You Probably Didn\u2019t Know"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Are you fascinated by the history and science of propeller design? We are, too. That\u2019s why we compiled this list of ten fascinating things you might not know about aircraft propellers. Test your aviation knowledge with these interesting propeller facts:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The earliest references of propeller designs originate from ancient Chinese spinning toys made from bamboo.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Leonardo da Vinci experimented with \u201cairscrew\u201d designs in the late 1400s for a helicopter-like flying machine.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The Wright Brothers invented the twisted airfoil propeller, using blades that were shaped more like wings than screws. This curved, or cambered, design increases the amount of thrust produced by the propeller. <\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The Wrights\u2019 props operated at about 82% efficiency. Today\u2019s propellers have an efficiency of around 90%.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Hartzell Propeller got its start in 1917 in Piqua, Ohio, after Orville Wright suggested to Robert N. Hartzell that he manufacture aircraft propellers using walnut wood from his family\u2019s lumber mill. <\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Neil Armstrong placed a scrap of fabric and piece of the wooden propeller from the original 1903 Wright Flyer on surface of the moon.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Hartzell Propeller has over 500 different propeller blade designs available.<\/span><\/li>\n<li style=\"font-weight: 400;\"><a href=\"http:\/\/www.popularmechanics.com\/flight\/a24004\/machine-gun-through-propeller-fighters-ww1\/\"><span style=\"font-weight: 400;\">Synchronization<\/span><\/a><span style=\"font-weight: 400;\"> (or interrupter) gear was invented during World War I to prevent mounted machine guns from hitting the aircraft\u2019s propeller. Synchronization gear triggers the machine gun at a precise moment in the propeller\u2019s revolution so the bullet passes between the blades.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Howard Hughes\u2019 H-4 Hercules \u2018Spruce Goose\u2019 had eight four-bladed propellers, one for each engine on the flying boat. Each prop was 17 feet, 2 inches in diameter.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">During World War II, the United States produced approximately 799,972 aircraft propellers.<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Are you fascinated by the history and science of propeller design? We are, too. That\u2019s why we compiled this list of ten fascinating things you might not know about aircraft propellers. Test your aviation knowledge with these interesting propeller facts: The earliest references of propeller designs originate from ancient Chinese spinning toys made from bamboo. [&hellip;]<\/p>\n","protected":false},"author":726,"featured_media":15969,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[8],"tags":[134,31,162],"class_list":["post-16126","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-aircraft-propellers","tag-composite-propeller","tag-propellers"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>10 Interesting Facts About Aircraft Propellers That You Probably Didn\u2019t Know - Hartzell Propeller<\/title>\n<meta name=\"description\" content=\"Think you know everything there is to know about aircraft propellers? 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