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#1
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Fiber optic guide for nav lights
I was wondering if anyone has considered using a lightpipe or
fiberoptic bundle for nav lights. I am considering it for the rear nav light (white) on my Europa. Is it feasible? Anyone know where I can buy these lightpipes? |
#2
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Fiber optic guide for nav lights
I should clarify. I don't mean the small acrylic stub on Cessna wings
that lets you see the nav light from the cockpit. What I mean is a lightpipe to send the light from an LED illuminator lcoated inside the fuselage to the tip of the rudder (or wings). |
#3
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Fiber optic guide for nav lights
But the problem is high power LED's like Luxeons require hefty
heatsinks, which makes them not so attractive in composite structures or confined spaces. That's why I thought a fiber optic illuminator might be an attractive solution. |
#4
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Fiber optic guide for nav lights
wrote in message ups.com... I should clarify. I don't mean the small acrylic stub on Cessna wings that lets you see the nav light from the cockpit. What I mean is a lightpipe to send the light from an LED illuminator lcoated inside the fuselage to the tip of the rudder (or wings).\ I don't see the advantage of doing what you are proposing. The typical nav LED nav light has a cluster of several LED's, both for pattern, and for brightness. I don't believe you could get the necessary brightness for one location, let alone multiple locations, using a single LED, or even a couple. Even if you clustered the LED's at a central location, and piped them out to the remote locations using fiber optics, do you think the weight or complexity would be less? I can't imagine how. You might need lenses to correctly distibute the light also, which would not be needed with the LED's out at the locations. -- Jim in NC |
#5
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Fiber optic guide for nav lights
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#6
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Fiber optic guide for nav lights
"Ernest Christley" wrote Make yourself a fairing out of 1/4" plexiglass. Well, not a whole fairing, just a section that would be the glass that you'd have for the light anyway. Now drill some 3/16" holes in it. Not just any way. Drill the holes to distribute the light of high power LEDs in the appropriate directions. Drill the hole with a high speed drill. I like your thinking, but I'll add one more thing. Modify your drill bit, or buy one for Plexiglas, or you risk cracking your Plexiglas. Use a dermal tool with a thin cutoff wheel, and use the side of it to change the angle of the leading cutoff edge of the bit. As it is, there is a positive angle to the bit, which is usually good for lifting the chips of metal away, and helping the bit to self feed through the metal. That is a "bad thing" for plexi. You want to have a 0 degree, or perhaps -1 degree edge to the bit to "scrape" the material away, and that will pretty much eliminate the chance of cracking the plexi. The drill bit, unmodified, will try to pull it's way through the soft plexi too fast, which can cause the cracking. -- Jim in NC |
#7
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Fiber optic guide for nav lights
On Fri, 9 Dec 2005 00:20:23 -0500, "Morgans" wrote:
Use a dermal tool with a thin cutoff wheel.... A dermal tool with a cutoff wheel? Maybe you ought to start seeing doctors who were trained SINCE the Civil War.... :-) Ron "Dremel" Wanttaja |
#8
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Fiber optic guide for nav lights
"Ron Wanttaja" wrote A dermal tool with a cutoff wheel? Maybe you ought to start seeing doctors who were trained SINCE the Civil War.... :-) chuckle "Curse you, Red Baron!" ((now mounting his trusty low monowing)) I've been doing my share of laughing at other's typo's lately... Bad karma was destined to come my way! g Darn Spell Checker! Yeah, that's the ticket! That's my story, and I'm stickin' to it! g -- Jim in NC |
#9
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Fiber optic guide for nav lights
In article , Morgans says...
Typo?? What Typo? I happen to own 3 Dermal tools with cut off wheels! Slavo Dermal built them in an obscure corner of the Black Sea years ago. It runs on 7 ,12 volt car batteries and weighs a mere 18lbs ready to go ,less batteries. It's a very portable unit. I had a bit of trouble with the chain drive lubrication but since it can cut railroad tracks I don't see why it won't cut fiber optic parts just as easily if properly lubricated. Mine are mounted on a horse drawn cart for portability. DERMAL ..if your not careful it'll take your skin off!! That's the Dermal motto as is "If it's gotta go ,we can send it". Opps that's the motto for SPU.Never mind Chuck (sorry I couldn't help myself) S wrote A dermal tool with a cutoff wheel? Maybe you ought to start seeing doctors who were trained SINCE the Civil War.... :-) chuckle "Curse you, Red Baron!" ((now mounting his trusty low monowing)) I've been doing my share of laughing at other's typo's lately... Bad karma was destined to come my way! g Darn Spell Checker! Yeah, that's the ticket! That's my story, and I'm stickin' to it! g |
#10
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Fiber optic guide for nav lights
In article , Morgans says...
I like your thinking, but I'll add one more thing. Modify your drill bit, or buy one for Plexiglas, or you risk cracking your Plexiglas. Use a dermal tool with a thin cutoff wheel, and use the side of it to change the angle of the leading cutoff edge of the bit. As it is, there is a positive angle to the bit, which is usually good for lifting the chips of metal away, and helping the bit to self feed through the metal. That is a "bad thing" for plexi. You want to have a 0 degree, or perhaps -1 degree edge to the bit to "scrape" the material away, and that will pretty much eliminate the chance of cracking the plexi. The drill bit, unmodified, will try to pull it's way through the soft plexi too fast, which can cause the cracking. It doesn't hurt to use some water for a coolant while drilling to keep the plexiglass from expanding .On a small hole I just dip the drill bit into a cup of water ,enough will stay on the drill to do the job. Flattening the drill bit or getting one specifically for plastic definitly will make the job alot easier.Good Luck See ya Chuck (I have 3 Dermal tools) S |
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