{"id":1229,"date":"2013-03-14T19:46:53","date_gmt":"2013-03-15T01:46:53","guid":{"rendered":"http:\/\/www.velocity-xl.com\/blog\/?p=1229"},"modified":"2013-05-25T20:15:37","modified_gmt":"2013-05-26T02:15:37","slug":"12-3-5-propeller","status":"publish","type":"post","link":"https:\/\/www.velocity-xl.com\/blog\/2013\/03\/14\/12-3-5-propeller\/","title":{"rendered":"12.3.5 Propeller"},"content":{"rendered":"<div class=\"pps-series-post-details pps-series-post-details-variant-classic pps-series-post-details-4068\" data-series-id=\"36\"><div class=\"pps-series-meta-content\"><div class=\"pps-series-meta-text\">This entry is part 31 of 50 in the series <a href=\"https:\/\/www.velocity-xl.com\/blog\/series\/12-engine-propeller\/\">12 - Engine \/ Propeller<\/a><\/div><\/div><\/div><p>About 3 years ago, I ran across an ad for an MT Prop&#8230; at a real good price. From a distributor. The story was that the prop was ordered but due to a miscommunication, a four-blade prop was what the buyer wanted but a three-blade is what they got.\u00a0 Either way, the (new, never used) three-blade was up for sale. It was way too early for a prop, but I got it anyway. And for three years, it&#8217;s been sitting around, generally getting in the way. Now it&#8217;s on the engine&#8230; getting in the way.<\/p>\n<p><a href=\"https:\/\/www.velocity-xl.com\/blog\/wp-content\/uploads\/2013\/05\/2013-03-13-IMG_20130313_094956_096a.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-1230\" title=\"2013-03-13 IMG_20130313_094956_096a\" src=\"https:\/\/www.velocity-xl.com\/blog\/wp-content\/uploads\/2013\/05\/2013-03-13-IMG_20130313_094956_096a-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p>Getting the cowling on is now impossible though. The opening for the prop was never trimmed. That&#8217;s intentional so that it could be done once the prop was on and it could be trimmed as close to the prop spinner as possible. So, somehow, I have to figure out how much to cut off of the cowling without taking too much.<\/p>\n<p>So I measured the distance from the prop flange (on the engine) to the front edge of the spinner.\u00a0 Then I removed the prop and bolted on a piece of plywood cut so that it just fit inside the cowling.<\/p>\n<p><a href=\"https:\/\/www.velocity-xl.com\/blog\/wp-content\/uploads\/2013\/05\/2013-03-13-IMG_20130313_160014_771.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-1232\" title=\"2013-03-13 IMG_20130313_160014_771\" src=\"https:\/\/www.velocity-xl.com\/blog\/wp-content\/uploads\/2013\/05\/2013-03-13-IMG_20130313_160014_771-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p>Then I made a spacer that would give me a dimension to where the cowling would have to be cut.<\/p>\n<p><a href=\"https:\/\/www.velocity-xl.com\/blog\/wp-content\/uploads\/2013\/05\/2013-03-13-IMG_20130313_162221_212.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-1233\" title=\"2013-03-13 IMG_20130313_162221_212\" src=\"https:\/\/www.velocity-xl.com\/blog\/wp-content\/uploads\/2013\/05\/2013-03-13-IMG_20130313_162221_212-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p>Now I just mark the cowling (black ink shows up better on green tape than black carbon fiber) where it needs to be cut.<\/p>\n<p><a href=\"https:\/\/www.velocity-xl.com\/blog\/wp-content\/uploads\/2013\/05\/2013-03-13-IMG_20130313_162918_995.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-1239\" title=\"2013-03-13 IMG_20130313_162918_995\" src=\"https:\/\/www.velocity-xl.com\/blog\/wp-content\/uploads\/2013\/05\/2013-03-13-IMG_20130313_162918_995-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p>Then cut the cowling and install.<\/p>\n<p><a href=\"https:\/\/www.velocity-xl.com\/blog\/wp-content\/uploads\/2013\/05\/2013-03-16-IMG_20130316_145011_295.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-1237\" title=\"2013-03-16 IMG_20130316_145011_295\" src=\"https:\/\/www.velocity-xl.com\/blog\/wp-content\/uploads\/2013\/05\/2013-03-16-IMG_20130316_145011_295-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><a href=\"https:\/\/www.velocity-xl.com\/blog\/wp-content\/uploads\/2013\/05\/2013-03-16-IMG_20130316_145028_880.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-1238\" title=\"2013-03-16 IMG_20130316_145028_880\" src=\"https:\/\/www.velocity-xl.com\/blog\/wp-content\/uploads\/2013\/05\/2013-03-16-IMG_20130316_145028_880-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><a href=\"https:\/\/www.velocity-xl.com\/blog\/wp-content\/uploads\/2013\/05\/2013-03-16-IMG_20130316_145051_989.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-1240\" title=\"2013-03-16 IMG_20130316_145051_989\" src=\"https:\/\/www.velocity-xl.com\/blog\/wp-content\/uploads\/2013\/05\/2013-03-16-IMG_20130316_145051_989-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p>The cowling is still very difficult to get on though as a result of the way I&#8217;m doing the cooling plenum and NACA extensions. and it&#8217;s almost impossible to assure that the NACA extensions are sealing properly on the baffles.\u00a0 I may have to come up with a two piece upper cowling to resolve that.<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"pps-series-post-details pps-series-post-details-variant-classic pps-series-post-details-4068 pps-series-meta-excerpt\" data-series-id=\"36\"><div class=\"pps-series-meta-content\"><div class=\"pps-series-meta-text\">This entry is part 31 of 50 in the series <a href=\"https:\/\/www.velocity-xl.com\/blog\/series\/12-engine-propeller\/\">12 - Engine \/ Propeller<\/a><\/div><\/div><\/div><p>About 3 years ago, I ran across an ad for an MT Prop&#8230; at a real good price. From a distributor. The story was that the prop was ordered but due to a miscommunication, a four-blade prop was what the &hellip; <a href=\"https:\/\/www.velocity-xl.com\/blog\/2013\/03\/14\/12-3-5-propeller\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[45],"tags":[],"series":[36],"class_list":["post-1229","post","type-post","status-publish","format-standard","hentry","category-45","series-12-engine-propeller"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/posts\/1229","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/comments?post=1229"}],"version-history":[{"count":2,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/posts\/1229\/revisions"}],"predecessor-version":[{"id":1242,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/posts\/1229\/revisions\/1242"}],"wp:attachment":[{"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/media?parent=1229"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/categories?post=1229"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/tags?post=1229"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/series?post=1229"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}