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Building Tips and technical articles. => Building techniques => Topic started by: Kirk_Binns on June 07, 2009, 08:53:05 AM
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I intend on using a restraining line (under the stab, over the fuse, under the stab) with my Brodak stooge. Any suggestions on the type of cord to use?
Kirk
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I would think of using that type of release on a stooge. I usually make a wire loop and hook it on the tail skid. As long as I keep my feet out of the release line noe problems. DOC Holliday
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I'd suggest not doing that! I did, because the wire thing broke, and I was an hour's drive from home. But then the string (a nylon boot lace) got jammed between the elevator and root fillet, and the model couldn't move. On a profile, it could get hooked onto the elevator horn or pushrod and be even worse, tho.
My suggestion is to build in a really strong anchor. Stooges are always courting disaster, so you need to be really careful. I saw Keith Varley lose his Humongus at NW Regionals due to taking off with the stooge line over the flying lines. There were many of us nearby that would have launched for Keith, if he'd only asked. At least, it was on the grass, and the engine survived. The weird thing is that the next guy that flew on the same grass circle also crashed and destroyed his model. Odd, huh? D>K Steve
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I intend on using a restraining line (under the stab, over the fuse, under the stab) with my Brodak stooge. Any suggestions on the type of cord to use?
Kirk
Kirk,
In my case, I used a very soft material, which just happened to be a ladies belt from a dress. (You are on your own as to finding something similar.) There is a risk of a small cord being caught in small areas as was pointed out, so chose your restrain "belt" carefully.
Probably the "belt" with the least chance of being caught on anything, would be a large diameter, soft cord, perhaps 1/2" in diameter. How you terminate the "release" end of the cord is also a consideration, so put some thought into that as well.
This unit was copied from one built by a friend of mine, and he has used it for years, and I don't know of any problems that he might have had. Your mileage may vary.
Cheers,
Warren Wagner
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Magicians use a very soft "clothesline" type of rope for their tricks. It is soft, and cuts very easily with a scissors. See, it's not really clothsline! But I don't think it would break under any normal stress that we'd give it. You can get it by the yard/foot in a magic shop.
w. 8)
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I've taken to having a separate attachment on the plane (not the tail wheel).
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I tried this type on my Twister and it got hung on the horn. We (me and the plane) sat there and ran out a tank of fuel on the ground.
I think the type that drop two post may be better. I still use a loop of old control line wrapped at the end of the tail skid or wheel. Just be sure to give it a good tug before each flight.
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Use of a lineless stooge cures a lot of problems!