{"id":1161,"date":"2012-07-09T23:17:02","date_gmt":"2012-07-09T23:17:02","guid":{"rendered":"http:\/\/127.0.0.1\/wordpress179\/?p=1161"},"modified":"2012-07-09T23:17:02","modified_gmt":"2012-07-09T23:17:02","slug":"aerojacket","status":"publish","type":"post","link":"https:\/\/thehippy.net\/blog\/aerojacket\/","title":{"rendered":"Aerojacket"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/thehippy.net\/gallery\/albums\/2009_04_08_PlanetX_StealthProCarbon\/normal_Aerojacket01.JPG\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/thehippy.net\/gallery\/albums\/2009_04_08_PlanetX_StealthProCarbon\/normal_Aerojacket02.JPG\"><img decoding=\"async\" src=\"https:\/\/thehippy.net\/gallery\/albums\/2009_04_08_PlanetX_StealthProCarbon\/normal_Aerojacket04.JPG\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/thehippy.net\/gallery\/albums\/2009_04_08_PlanetX_StealthProCarbon\/normal_Aerojacket03.JPG\"><\/p>\n<p><a href=\"http:\/\/www.thebikewhisperer.co.uk\">The Bike Whisperer<\/a> received my repaired 808 Powertap from Paligap and have fitted my new <a href=\"http:\/\/www.wheelbuilder.com\/aerodisc.html\">Aerojacket wheel covers<\/a>. If you believe their <a href=\"http:\/\/www.wheelbuilder.com\/aerodisc-data.html\">wind tunnel data<\/a>, these covers can be faster than disc wheels. <\/p>\n<p><i>A covered wheel has dramatically lower aerodynamic drag than an uncovered wheel.<\/p>\n<p>Disc cover performance is virtually identical to disc wheels through the entire range of yaw angles: 0-30 degrees.<\/p>\n<p>A covered 81mm deep wheel outperformed flat disc wheels in every wind condition. The covered Zipp 808 has less drag than the fastest disc wheel tested beyond 10 degrees of yaw.<\/p>\n<p>A typical 30mm training wheel with disc covers approaches the performance of a flat disc at 7.5 degrees of yaw, but exceeds performance of all disc wheels tested at wind angles greater than 12.5 degrees.<\/p>\n<p>The lens-shape on a disc-cover&#8217;s non-drive side causes wind to pass around it like a wing, producing forward thrust. This effect is more pronounced on covered shallow wheels beyond 20 degrees of yaw.<\/i><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.wheelbuilder.com\/enewsletter\/images\/wheelbuilder_wind_tunnel_data_all.jpg\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Bike Whisperer received my repaired 808 Powertap from Paligap and have fitted my new Aerojacket wheel covers. If you believe their wind tunnel data, these covers can be faster than disc wheels. A covered wheel has dramatically lower aerodynamic &hellip; <a href=\"https:\/\/thehippy.net\/blog\/aerojacket\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"_links":{"self":[{"href":"https:\/\/thehippy.net\/blog\/wp-json\/wp\/v2\/posts\/1161"}],"collection":[{"href":"https:\/\/thehippy.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thehippy.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thehippy.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/thehippy.net\/blog\/wp-json\/wp\/v2\/comments?post=1161"}],"version-history":[{"count":0,"href":"https:\/\/thehippy.net\/blog\/wp-json\/wp\/v2\/posts\/1161\/revisions"}],"wp:attachment":[{"href":"https:\/\/thehippy.net\/blog\/wp-json\/wp\/v2\/media?parent=1161"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thehippy.net\/blog\/wp-json\/wp\/v2\/categories?post=1161"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thehippy.net\/blog\/wp-json\/wp\/v2\/tags?post=1161"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}