{"id":302,"date":"2011-05-03T14:43:30","date_gmt":"2011-05-03T20:43:30","guid":{"rendered":"http:\/\/www.velocity-xl.com\/blog\/?p=302"},"modified":"2011-08-05T15:00:02","modified_gmt":"2011-08-05T21:00:02","slug":"2-8-4-rudder-horn-installation","status":"publish","type":"post","link":"https:\/\/www.velocity-xl.com\/blog\/2011\/05\/03\/2-8-4-rudder-horn-installation\/","title":{"rendered":"2.8.4 Rudder Horn Installation"},"content":{"rendered":"
This entry is part 3 of 8 in the series 02 - Wing \/ Winglets<\/a><\/div><\/div><\/div>

Now that the rudders are mounted, the control of the rudders is the next task. The rudders are activated by a “horn” (basically a bellcrank) that is attached to the bottom of the rudder. But there’s a slight problem. The book says “Place your rudder horn on the bottom of the rudder.” But there’s no part number. Which would indicate that this is not a supplied part. But there’s also no template that is typically used to make one. A phone call to other builders indicate that this is supposed to be included in the kit. I’m sure that I could get the two horns shipped out to me. But where’s the fun in that???<\/p>\n

So the first thing I had to do is make a template.<\/p>\n

This is the bottom of the left rudder. I’ve drawn a line to indicate how far the horn will extend.
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Here’s the template held against the right rudder.
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Since the rudders are a symmetrical, I only need one template. I’ll just need to flip it over to for the other rudder.
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The rudder horn is mounted to the bottom of the rudder by means of a hardpoint embedded in the foam. But the hard point provided is a puny piece of 1\/8″ aluminum about 1 inch x 2 inch square. I decided to upgrade to a 1\/4″ hardpoint the covers the entire area under the rudder horn.<\/p>\n

First I removed the foam where the rudder horn and hardpoint will go.
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Then the web (fiberglass) is removed at the front of the rudder.
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Here’s the hardpoint dryfitted.
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And the rudder horn.
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Then I filled the pocket with an epoxy\/cabo mix, pushed the hardpoint in place and covered it with 3x BID.<\/p>\n

After it cured, I trimmed away the excess and was left with this.
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Then the rudder horns were sanded along the edges to remove any nicks from cutting and the fit was checked again.
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Two holes were drilled for mounting
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Then I put the horn in position, drilled into the hardpoints and tapped the holes.<\/p>\n

After that I drilled a hole in the end and mounted the rudder cable attach pulley.
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Here’s the finished product.
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And this is a factory hardpoint.
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Not very impressive, huh?<\/p>\n","protected":false},"excerpt":{"rendered":"

This entry is part 3 of 8 in the series 02 - Wing \/ Winglets<\/a><\/div><\/div><\/div>

Now that the rudders are mounted, the control of the rudders is the next task. The rudders are activated by a “horn” (basically a bellcrank) that is attached to the bottom of the rudder. But there’s a slight problem. The … Continue reading →<\/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":[8],"tags":[],"series":[26],"class_list":["post-302","post","type-post","status-publish","format-standard","hentry","category-8","series-02-wing-winglets"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/posts\/302","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=302"}],"version-history":[{"count":2,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/posts\/302\/revisions"}],"predecessor-version":[{"id":317,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/posts\/302\/revisions\/317"}],"wp:attachment":[{"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/media?parent=302"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/categories?post=302"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/tags?post=302"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/series?post=302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}