wingtubes bending ...
05-17-2011 | 01:07 PM
#1
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wingtubes bending ...
I would like to stiffen up my wing tube. Its a large aluminum tube, and i already bent it slightly. (no, it was not flown too hard or fast .. ) . What would be a better idea ? stiffen it with another carbon wing tube inside of it ? or strengthen it with a wooden dowel ? Where can I find carbon wing tubes ?
thanks !
~V~
thanks !
~V~
05-17-2011 | 01:18 PM
#5
RE: wingtubes bending ...
Not sure if you can stiffen the aluminum tube but for sure you can replace it with a carbon tube found in Troy Built Models in this url: http://www.troybuiltmodels.com/categ...par-Tubes.html
These tubes are not only stronger but also a lot lighter than the aluminum
Tassos
These tubes are not only stronger but also a lot lighter than the aluminum
Tassos
05-17-2011 | 02:06 PM
#6
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RE: wingtubes bending ...
Another suggestion would be to put in a vertical piece of plywood, kind of like a spar. Measure the ID of your tube and cut a 1/8" piece of plywood to fit inside...full length or at least the center 1/2 or so. Glue it in with epoxy and just be sure it stays vertical when you mount the wings.
This is the arrangement on my A-10 wing tube and since the loads are all in the vertical axis, it makes the tube super strong...probably more so than just upping the thickness. Cheaper and quicker too.
Craig
This is the arrangement on my A-10 wing tube and since the loads are all in the vertical axis, it makes the tube super strong...probably more so than just upping the thickness. Cheaper and quicker too.
Craig
05-17-2011 | 02:32 PM
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From: Scottsdale, AZ
RE: wingtubes bending ...
ORIGINAL: CraigG
Another suggestion would be to put in a vertical piece of plywood, kind of like a spar. Measure the ID of your tube and cut a 1/8'' piece of plywood to fit inside...full length or at least the center 1/2 or so. Glue it in with epoxy and just be sure it stays vertical when you mount the wings.
This is the arrangement on my A-10 wing tube and since the loads are all in the vertical axis, it makes the tube super strong...probably more so than just upping the thickness. Cheaper and quicker too.
Craig
Another suggestion would be to put in a vertical piece of plywood, kind of like a spar. Measure the ID of your tube and cut a 1/8'' piece of plywood to fit inside...full length or at least the center 1/2 or so. Glue it in with epoxy and just be sure it stays vertical when you mount the wings.
This is the arrangement on my A-10 wing tube and since the loads are all in the vertical axis, it makes the tube super strong...probably more so than just upping the thickness. Cheaper and quicker too.
Craig
+1, easiest thing to do.
05-17-2011 | 02:39 PM
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RE: wingtubes bending ...
ORIGINAL: CraigG
Another suggestion would be to put in a vertical piece of plywood, kind of like a spar. Measure the ID of your tube and cut a 1/8'' piece of plywood to fit inside...full length or at least the center 1/2 or so. Glue it in with epoxy and just be sure it stays vertical when you mount the wings.
This is the arrangement on my A-10 wing tube and since the loads are all in the vertical axis, it makes the tube super strong...probably more so than just upping the thickness. Cheaper and quicker too.
Craig
Another suggestion would be to put in a vertical piece of plywood, kind of like a spar. Measure the ID of your tube and cut a 1/8'' piece of plywood to fit inside...full length or at least the center 1/2 or so. Glue it in with epoxy and just be sure it stays vertical when you mount the wings.
This is the arrangement on my A-10 wing tube and since the loads are all in the vertical axis, it makes the tube super strong...probably more so than just upping the thickness. Cheaper and quicker too.
Craig
We built a UAV with a 14' wingspan and 160 lbs gross weight and the 2" 6061 wing tube wasn't quite enough for a full 4G fload factor, so we did the same thing - except we used 1/4" ply with carbon laminated on both sides. We also have a pin that goes into the spar to make sure it stays in an upright position...Bob
05-17-2011 | 02:58 PM
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From: Vernon,
NJ
RE: wingtubes bending ...
I have used Graphtech before with good results.
http://www.graphtechrcshop.com/categ...3?categoryId=7
http://www.graphtechrcshop.com/categ...3?categoryId=7
05-17-2011 | 03:27 PM
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RE: wingtubes bending ...
ORIGINAL: ianober
+1, easiest thing to do.
ORIGINAL: CraigG
Another suggestion would be to put in a vertical piece of plywood, kind of like a spar. Measure the ID of your tube and cut a 1/8'' piece of plywood to fit inside...full length or at least the center 1/2 or so. Glue it in with epoxy and just be sure it stays vertical when you mount the wings.
This is the arrangement on my A-10 wing tube and since the loads are all in the vertical axis, it makes the tube super strong...probably more so than just upping the thickness. Cheaper and quicker too.
Craig
Another suggestion would be to put in a vertical piece of plywood, kind of like a spar. Measure the ID of your tube and cut a 1/8'' piece of plywood to fit inside...full length or at least the center 1/2 or so. Glue it in with epoxy and just be sure it stays vertical when you mount the wings.
This is the arrangement on my A-10 wing tube and since the loads are all in the vertical axis, it makes the tube super strong...probably more so than just upping the thickness. Cheaper and quicker too.
Craig
+1, easiest thing to do.
05-17-2011 | 03:47 PM
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RE: wingtubes bending ...
ORIGINAL: CraigG
Another suggestion would be to put in a vertical piece of plywood, kind of like a spar. Measure the ID of your tube and cut a 1/8'' piece of plywood to fit inside...full length or at least the center 1/2 or so. Glue it in with epoxy and just be sure it stays vertical when you mount the wings.
This is the arrangement on my A-10 wing tube and since the loads are all in the vertical axis, it makes the tube super strong...probably more so than just upping the thickness. Cheaper and quicker too.
Craig
Another suggestion would be to put in a vertical piece of plywood, kind of like a spar. Measure the ID of your tube and cut a 1/8'' piece of plywood to fit inside...full length or at least the center 1/2 or so. Glue it in with epoxy and just be sure it stays vertical when you mount the wings.
This is the arrangement on my A-10 wing tube and since the loads are all in the vertical axis, it makes the tube super strong...probably more so than just upping the thickness. Cheaper and quicker too.
Craig
Great idea Craig ! Looks like i have my solution
thanks ! ~V~
05-17-2011 | 05:39 PM
#13
My Feedback: (34)
RE: wingtubes bending ...
ORIGINAL: CraigG
Another suggestion would be to put in a vertical piece of plywood, kind of like a spar. Measure the ID of your tube and cut a 1/8'' piece of plywood to fit inside...full length or at least the center 1/2 or so. Glue it in with epoxy and just be sure it stays vertical when you mount the wings.
This is the arrangement on my A-10 wing tube and since the loads are all in the vertical axis, it makes the tube super strong...probably more so than just upping the thickness. Cheaper and quicker too.
Craig
Another suggestion would be to put in a vertical piece of plywood, kind of like a spar. Measure the ID of your tube and cut a 1/8'' piece of plywood to fit inside...full length or at least the center 1/2 or so. Glue it in with epoxy and just be sure it stays vertical when you mount the wings.
This is the arrangement on my A-10 wing tube and since the loads are all in the vertical axis, it makes the tube super strong...probably more so than just upping the thickness. Cheaper and quicker too.
Craig
05-17-2011 | 05:46 PM
#14
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RE: wingtubes bending ...
Another option: go to home depot or equivalent and get the closes diameter wood dowel (bigger than the ID of the tube). Put in oven for about 10 minutes to dry. It wll likely now slip inside the wing tube or require light sanding. Insert it and you are done. It will slowly absorb moisture and get a very tight fit with the wing tube.
