{"id":2512,"date":"2009-04-12T14:26:20","date_gmt":"2009-04-12T20:26:20","guid":{"rendered":"http:\/\/www.velocity-xl.com\/blog\/?p=2512"},"modified":"2015-02-02T17:50:55","modified_gmt":"2015-02-02T23:50:55","slug":"4-2-9-landing-lights-2","status":"publish","type":"post","link":"https:\/\/www.velocity-xl.com\/blog\/2009\/04\/12\/4-2-9-landing-lights-2\/","title":{"rendered":"4.2.9 Landing Lights"},"content":{"rendered":"
This entry is part 5 of 5 in the series 04 - Bulkheads<\/a><\/div><\/div><\/div>

I primed the canard with Akzo-Nobel 2K gray primer. This is the first part of the primer that Malcolm uses.\u00a0 Once the primer was dry, I had to locate where the ballast would go. because the wire harness which connects the lights to the ballast is only six feet long, I put the ballast as far outboard as possible.<\/p>\n

\"2009-04-05<\/a><\/p>\n

Because the mounting tabs are not flush on the bottom, I would need standoffs. I decided to use wood.\u00a0 And since I hate using sheet metal screws, I decided to embed nutplates in the wood.<\/p>\n

\"2009-04-05<\/a>\"2009-04-05<\/a><\/p>\n

Here is the landing light ballast mounting hardpoints for the left light glassed in position\u00a0 \"2009-04-08<\/a> \"2009-04-08<\/a><\/p>\n

Once that was done, I (of course) had to connect everything and turn some lights on.<\/p>\n

\"2009-04-03<\/a><\/p>\n

These things are BRIGHT!\u00a0 But that’s when I discovered the the lens was melting. That light gets REAL hot. So one of my custom made lenses was toast. I called Xevision and talked to one of their engineers and explained what was happening and asked if there was some special material that I should be using. He asked where I was testing the lights and told him that I was doing this in my shop.\u00a0 In true Adam Savage fashion, he said “There’s your problem”.\u00a0 He said that outside when the airplane is moving, the air over the lens will keep it cool enough. That seemed unlikely to me so I did a test.\u00a0 I positioned a small fan about four feet from the other landing light on the slowest setting.\u00a0 Then I turned on the landing light and with my non-contact thermometer, I monitored the temps. I was seeing 180F on the lens and 110F on the canard. Actually cool enough that the lens didn’t get soft. But not as cool as I would like.<\/p>\n

Malcolm suggested a type of ventilation system.<\/p>\n

So I drilled a hole from the back of the canard to the cavity for the landing light.\u00a0 I bonded some nylon tubing in and trimmed it flush with the surface of the canard.\u00a0 This will create a slight vacuum pulling air from the doghouse through the landing light area… hopefully.<\/p>\n

\"2009-04-12<\/a>\u00a0 \"2009-04-12<\/a>\"2009-04-26<\/a><\/p>\n

Not sure if it’s needed or will even help. We’ll see.<\/p>\n","protected":false},"excerpt":{"rendered":"

This entry is part 5 of 5 in the series 04 - Bulkheads<\/a><\/div><\/div><\/div>

I primed the canard with Akzo-Nobel 2K gray primer. This is the first part of the primer that Malcolm uses.\u00a0 Once the primer was dry, I had to locate where the ballast would go. because the wire harness which connects … 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":[6],"tags":[],"series":[28],"class_list":["post-2512","post","type-post","status-publish","format-standard","hentry","category-6","series-04-bulkheads"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/posts\/2512","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=2512"}],"version-history":[{"count":4,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/posts\/2512\/revisions"}],"predecessor-version":[{"id":2542,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/posts\/2512\/revisions\/2542"}],"wp:attachment":[{"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/media?parent=2512"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/categories?post=2512"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/tags?post=2512"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/www.velocity-xl.com\/blog\/wp-json\/wp\/v2\/series?post=2512"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}