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#1
March 13th 13, 06:31 PM
posted to rec.aviation.soaring
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Tail Tank pull handle....ideas
Hi guys,
I'm looking for a sliding dump handle idea, it needs to travel 2 inches, maybe a notched plate with a handle....any ideas or drawings? GL 
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#2
March 13th 13, 07:05 PM
posted to rec.aviation.soaring
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Tail Tank pull handle....ideas
On Wednesday, March 13, 2013 2:31:08 PM UTC-4, Gregg Leslie wrote:
Hi guys, I'm looking for a sliding dump handle idea, it needs to travel 2 inches, maybe a notched plate with a handle....any ideas or drawings? GL How about a chain? http://www.signaturehardware.com/product17094 :-) T8
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#3
March 13th 13, 08:19 PM
posted to rec.aviation.soaring
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Tail Tank pull handle....ideas
On Wednesday, March 13, 2013 2:31:08 PM UTC-4, Gregg Leslie wrote:
Hi guys, I'm looking for a sliding dump handle idea, it needs to travel 2 inches, maybe a notched plate with a handle....any ideas or drawings? GL Is sliding the key requirement? Many dump systems I've seen use a simple swinging lever that has the cable attached slightly off-center. The full travel is 2x the radius of the lever arm, so you only need a one inch arm to get your two inches of travel. The over-center leverages the tension in the system to keep the valve in the desired position (e.g valve closing). There's often a spring that allows for some slop in the system as well. I'll draw one up and email it to you...
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#4
March 13th 13, 11:46 PM
posted to rec.aviation.soaring
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Tail Tank pull handle....ideas
DG gliders use a bicycle shift lever a-la style Eric described above.
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#5
March 14th 13, 12:50 AM
posted to rec.aviation.soaring
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Tail Tank pull handle....ideas
On Wednesday, March 13, 2013 2:31:08 PM UTC-4, Gregg Leslie wrote:
Hi guys, I'm looking for a sliding dump handle idea, it needs to travel 2 inches, maybe a notched plate with a handle....any ideas or drawings? GL In my 20C the stock valve acuators were small over center levers. I just made a hook to go over one of them to operate the tail valve cable. Unhooked to separate fuctions if needed. UH
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#6
March 14th 13, 02:41 PM
posted to rec.aviation.soaring
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Tail Tank pull handle....ideas
In the LAK-17a they use a push-pull handle which slides in an "L" shaped
slot in a metal plate. The tail tank (wings use the same setup with a separate lever) is held closed by placing the lever in the short slot, opened by pulling into the long slot and then aft. wrote in message ... On Wednesday, March 13, 2013 2:31:08 PM UTC-4, Gregg Leslie wrote: Hi guys, I'm looking for a sliding dump handle idea, it needs to travel 2 inches, maybe a notched plate with a handle....any ideas or drawings? GL In my 20C the stock valve acuators were small over center levers. I just made a hook to go over one of them to operate the tail valve cable. Unhooked to separate fuctions if needed. UH
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