{"id":3682,"date":"2017-08-16T10:24:07","date_gmt":"2017-08-16T14:24:07","guid":{"rendered":"https:\/\/amablog.modelaircraft.org\/amamuseum\/?p=3682"},"modified":"2017-08-09T09:40:01","modified_gmt":"2017-08-09T13:40:01","slug":"1910-jopson-motor-flight","status":"publish","type":"post","link":"https:\/\/amablog.modelaircraft.org\/amamuseum\/2017\/08\/16\/1910-jopson-motor-flight\/","title":{"rendered":"1910 Jopson Motor: Flight!"},"content":{"rendered":"

The 1910 Jopson Gasoline Motor<\/a> weighed 7.5 pounds and had a unique wick carburetor system installed in a tank without any sort of pressurization.\u00a0 Could it actually power a model airplane in flight?<\/p>\n

Yes!\u00a0 \u2026. Or, well, we\u2019re pretty sure.<\/p>\n

Photographs published in the book Model Aeroplaning: Its Practice and Principles<\/em><\/a>, by V.E. Johnson in 1922 show the motor installed in a model airplane by T.W.K. Clarke.\u00a0 According to the text, adding the battery and coil to the motor increased its weight to 8 lbs 14 ozs, a bit more than the model airplane itself, which weighed 7 lbs 2 ozs.\u00a0 It took a wingspan 96 inches to get all of it into the air.<\/p>\n

\"A<\/a>
Jopson Motor installed in T.W.K. Clarke’s model aircraft. Photograph from Johnson, V.E. Model Aeroplaning: Its Practice and Principles<\/em>, London: F.N. Spon, 1922.<\/figcaption><\/figure>\n

Note that the engine was installed in the model pusher fashion, with the tank pointing towards the model\u2019s front canard (which measured 42\u201d), and the prop facing the back of the model.<\/p>\n

\"A<\/a>
Jopson Motor installed in T.W.K. Clarke’s model aircraft. Photograph from Johnson, V.E. Model Aeroplaning: Its Practice and Principles<\/em>, London: F.N. Spon, 1922.<\/figcaption><\/figure>\n

Despite all of the information provided on Clarke\u2019s model (including his closing statement, \u201cNote the neatness and compactness of the plant, also its high position and the large size of the propeller.\u201d), what he doesn\u2019t provide is details about any flight made with the model.\u00a0 T.W.K. Clarke, though, sold both model airplanes and full-scale airplanes, and was an active modeler and a frequent contributor to Flight<\/em> magazine, so there\u2019s every reason to expect that he tried to get the model off the ground with the engine running.\u00a0 If any details of these attempts exist, however, they\u2019ve yet to be located.<\/p>\n

\"A<\/a>
Jopson Motor installed in T.W. Clarke’s model aircraft. Photograph from Johnson, V.E. Model Aeroplaning: Its Practice and Principles<\/em>, London: F.N. Spon, 1922.<\/figcaption><\/figure>\n

p.s. – Want some fun reading?\u00a0 The information on T.W.K. Clarke was taken from page 219 of <\/em>Model Aeroplaning<\/a>. Reading on to 220 and 221 gets you some very early thoughts on using electric motors, and a funny anecdote about a \u201crocket-powered\u201d model airplane!<\/em><\/p>\n

Come and see the 1910 Jopson Motor on exhibit between Memorial Day and Labor Day 2017!<\/p>\n

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\nFor more information on the National Model Aviation Museum, including our location, hours and admission fees visit: www.modelaircraft.org\/museum<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

The 1910 Jopson Gasoline Motor weighed 7.5 pounds and had a unique wick carburetor system installed in a tank without any sort of pressurization.\u00a0 Could it actually power a model airplane in flight? Yes!\u00a0 \u2026. Or, well, we\u2019re pretty sure. Photographs published in the book Model Aeroplaning: Its Practice and […]<\/p>\n","protected":false},"author":10,"featured_media":3666,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"wds_primary_category":0,"footnotes":""},"categories":[81,47],"tags":[235,56,151,247,50],"class_list":["post-3682","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-loan","category-museum","tag-1910-jopson-motor","tag-artifact","tag-engine","tag-loan","tag-museum-2"],"_links":{"self":[{"href":"https:\/\/amablog.modelaircraft.org\/amamuseum\/wp-json\/wp\/v2\/posts\/3682","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/amablog.modelaircraft.org\/amamuseum\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/amablog.modelaircraft.org\/amamuseum\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/amablog.modelaircraft.org\/amamuseum\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/amablog.modelaircraft.org\/amamuseum\/wp-json\/wp\/v2\/comments?post=3682"}],"version-history":[{"count":6,"href":"https:\/\/amablog.modelaircraft.org\/amamuseum\/wp-json\/wp\/v2\/posts\/3682\/revisions"}],"predecessor-version":[{"id":3779,"href":"https:\/\/amablog.modelaircraft.org\/amamuseum\/wp-json\/wp\/v2\/posts\/3682\/revisions\/3779"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/amablog.modelaircraft.org\/amamuseum\/wp-json\/wp\/v2\/media\/3666"}],"wp:attachment":[{"href":"https:\/\/amablog.modelaircraft.org\/amamuseum\/wp-json\/wp\/v2\/media?parent=3682"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/amablog.modelaircraft.org\/amamuseum\/wp-json\/wp\/v2\/categories?post=3682"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/amablog.modelaircraft.org\/amamuseum\/wp-json\/wp\/v2\/tags?post=3682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}