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Building Tips and technical articles. => Building techniques => Topic started by: Ken Culbertson on October 15, 2019, 02:58:12 PM
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Arrow shafts are a cheap and effective source for CF Tubes. Make sure you get target or women's shafts. The hunting or crossbow types are too heavy. The targets shafts are lighter than the balsa they replace.
I have been asked to describe how I use them in a profile fuselage so here goes:
I use an E_Xacto hollowing tool (1/4" one) to cut out a trough in top and bottom of the fuselage blank to where the arrow shaft is about 3/4 embedded. If you like square fuselages, cut it 1/4" deep so you can put a 1/16 cap on to cover it up. Then I epoxy the shaft in. When it is set you can sand it round or cap it. On the top I cut the trough half in the fuselage and half in the top piece. You can't see that one because it is fully buried. I didn't get a picture of the stab but it has one too. The other picture is from the Stab of my Sandpiper design under construction last year where you can clearly see the tube. It also has two in the wing center section out to the LG.
On my twister the stab wood was very soft so I cut a slot about mid chord and put in a shaft. Then I planked it with some cross grained 1/32. On a Fancherized Twister that bottom tube also serves to strengthen the piece you added to lengthen the fuselage.
It Ted is seeing this, the changes to the stab you asked about are in the picture.
The green line is the original kit elevator before Fancherizing. End result is a Twister that doesn't Twist and flies close enough to a PA to be a boatload of fun.
Ken
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As a former bowhunter. Most of the 32" arrow shafts are light.
Now the $2 shafts you find at walmart in the big box are cheaply made and heavy.
Name brand shafts come in different diameters and light as in Bowhunting...the speed of your arrow is life.
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Now the $2 shafts you find at walmart in the big box are cheaply made and heavy.
Good point but they are still lighter than balsa and CHEAP!
Ken
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Oh I know. I was making the point that todays carbon arrows used for hunting are lighter than the cheap cheap arrows.
Sent from my SM-G965U using Tapatalk
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I have some Dave Brown arrow shafts from my R/C days.
They came with plug-in ends.
Could still be available?
Anyone interested I could weigh one.
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I have some Dave Brown arrow shafts from my R/C days.
They came with plug-in ends.
Could still be available?
Anyone interested I could weigh one.
Most of the weight will be the ends and the "feathers". I use a piece of 6-32 all thread to join two of them and you have jig tubes.
Ken
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My very rural local town has not one, but two gun stores with a large selection of bow hunting stuff. Including indoor bow ranges. On occasion when shopping for gun related, items I ask of I can rummage the trash bin inside the range. I am always told to take what I want.. Have not been back in a long while. I got 35 + shafts of various, weight, length, diameter, and materiel----- lifetime supply for modest aircraft sizes....free