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Make your own wind flags
By Wilbur Harris | Published  11/29/2005 | Rimfire , Centerfire | Unrated
Instructions

Parts
Visit your local hobby store and get your supplies.  You will need some brass tubing 1/8 inch or so and some music wire that fits inside the tubing without being tight - close but not tight.  Find a short piece of wire or something hard that fits tight inside the tubing and buy an inch or so in length for each flag. The idea is to have a wire that turns easily inside the tubing and rests against the tight fitting thingy.  Using the proportions in the picture, get some sheet balsa wood that is a little thicker than the tubing diameter and at least as wide as the desired length of the flag.  Using the 6 inch length, a sheet of balsa 8 inches by 2 inches would make 2 flags if cut properly (see cutting idea).
Choose the colors and get some spray paint along with some 5 minute epoxy, 1/4 diameter wooden dowel rods and masking tape from a discount store.
TOOLS
You really need a hobby knife, a hacksaw, a fine file or stone and a pair of diagonal pliers.

Assembly
First cut the balsa to the desired size and lay it aside.  Using the 6 inch proportion as a guideline for these directions, cut a 2 inch piece of tubing and ream the ugly ends with your pocket knife.  Clean up the outside with a small file if you want to.  Now, cut an inch length of the "tight fitting" wire and file or stone the ends square and smooth.  Slide the 1 inch wire into the 2 inch tube until the ends are flush and crimp the 2 together with the diagonal pliers.  Make several crimps in each if you think you need to but be careful not to bend the tube. Make one of these for each flag.

Draw a line down the center of the flag and use the hobby knife to cut, scrape and gouge a slot for the tube assembly you just made so that 1 inch of the tube is into the flag and 1 inch out (like the picture).  If you think you need to drill the flag please do.  Epoxy the tube into the balsa and get it straight.  When the epoxy sets, paint the flags.  If you chose balsa over the coroplast material you should seal the wood before painting.

Cut the wooden dowel rods into lengths of about 4 inches and use your ingenuity to make a hole in the one end of each about the same size as the "loose fitting" wire - make it a half inch deep.  Cut the wire into 2 inch lengths and epoxy it straight into the holes.  Be sure you leave enough wire sticking out to hit the stop in the tube with a little left over. You can straighten it with your thumb if you make one crooked.  When the epoxy sets, file a sharp point on the end of the wire.  If you intend to use music stands or stands with similar tubing, use the masking tape to wrap the dowel rod so that it will not fall into the tube (make a stop).  You can also wrap the end that sticks into the stand a few times to take out the play where the dowel doesn't fit tightly.

USE
Stick the dowel rod / pointed wire thing into your stand and slip the flag tube down over the wire.  Attach a streamer to the flag and you are in business.  Balance the flag by epoxying lead to the top of the pointed end if you think it helps.  Good Shooting.

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Comments
  • Comment #1 (Posted by Jerry Sharrett)

    Two things to consider, move the brass tube further to the rear to balance flag after tail is attached. Secondly, if using coroplast and a brass tube as shown, cut the coroplast so the brass tube goes in one of the corrigation holes.
     
  • Comment #2 (Posted by Wilbur)

    Agreed that Jerry's thoughts would make an easier more friendly wind flag but there are trade-offs. Moving the pivot toward the rear decreases the effective difference in area fore and aft of the pivot which decreases functionality - the flag works because there is more area on one side than the other.

    Given that the length is greater than the height as it sits, strength of the flag against folding is stronger with the "flutes" running "longways".

    A characteristic of Coroplast is that it tends to warp easily and is difficult to straighten. I need to make a few as Jerry said...with the flutes running "shortways" and see what happens when subjected to sunshine on one side.
     
  • Comment #3 (Posted by Pete Doyle)

    Could you please tell me what "Colorplast" is?

    Thank You
    Pete
     
  • Comment #4 (Posted by Wilbur)

    Coroplast is the trademark name of a corrugated plastic material. It's not much different than corrugated cardboard - except it's a vinyl type plastic material.
     
  • Comment #5 (Posted by Bill Wynne)

    Using this method I took down a political yard sign from my yard and made several. I guess it was made of "Colorplast".
    This is a very usable basic wind flag and it works. Later, you may get as fancy as you need to.
    I used a 1/2" dowel because I had one. Later I used a piece of wood 3/4" x 3/4".
    The description was easy to follow and the thing works. Simple common materials.
     
  • Comment #6 (Posted by Steve)

    I started to make your flag, which is a great idea. But I wanted to take tit a little further. Boy.......did I! My elements include a micrphone stand, Pro Shot pistol cleaning rods, ball bearings, balsa wood, Monokote (model airplanes), Alum. tubing, wooden ball and a bubble level.

    They turned out great after finding the correct bearings. They are very sensetive to the slightest breeze. What you could desgn is endless. Next one is going to be scaled version of a cartridge, my name, a plane or whatever.........

    Your design ispired all of this. I would love to send some pics via email for you to judge if you could provide me with your address.

    Thanks Steve
     
  • Comment #7 (Posted by Wilbur)

    wilburh@benchrest.net
     
  • Comment #8 (Posted by Bill Wynne)

    This is about the simplest wind-flag that can be made. There are no bearings find and work with. The coroplast is easily found in political yard signs, it is like card board made out of plastic. These flags can be made in just a few minutes for very little cost.

    Shooters can "improve" on this basic design easily enough, if they choose. This design, as is, will show the direction and relative speed of the wind and it is easy requires very little space to store.
     
  • Comment #9 (Posted by speedpro)

    i enjoyed constructing these flags and find them very functional and durable. I increased the scale for longer ranges as my eyes are poor as far as durability I have'nt seen any "warpage" or distorsion to any significant degree as to where their function and dependability is affected. I leave a couple of these in my yard year round for the last 2 years and their as good today as they were on day 1.
     
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Wilbur Harris
Benchrest competitor since 1988. Won a few matches here and there - lost most of them. 

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