stunthanger.com
Building Tips and technical articles. => 1/2 A building. => Topic started by: Rusty on January 31, 2011, 07:56:47 PM
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The plastic backplate cost a lot less than the diecast one. What else? It actually functions perfectly well and doesn't degrade with age like the old pot-metal ones. However, there are two versions. The early ones had a very sharp corner in the bottom of the screw holes, and the back would fracture there. I fixed that with a small chamfer around the base of each pocket. No more problems. Got to wonder where some designers had their "education"! I name no names, but suspect I know who is the guilty party. You know who you are!!! VD~
If you take a magnifier and good lighting, you can actually see whether there is a sharp corner or chamfer in the bottom of the screw pocket. If no chamfer, be very delicate on tightening the screws. A possible work-around is to put silicone seal on the screw head and only tighten it very delicately.
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The back plate mounting screw holes, Larry?
Thanks
Bill
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No, the sockets for the heads of the screws that hold the tank to the engine were the failure points. HB~>
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Did a google search on the stunt chimp... nice looking little airplane! I bet I even have all the bits and pieces in my shop to put one or two together... once the kids finish breaking up the exisiting trainers!
Bob
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Rusty,
No doubt in my mind it will fly.
Chuck
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I too am building one and noticed there are no weight recommendations nor a CG location. Could someone please advise?
Thanks,
John
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The CG on control line models ranges between the leading edge and 1/3rd of the wings chord. Trainers should be near to the leading edge, combat planes at about the 1/3rd point and stunt models are in between. This applies to all control line models.
Larry
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Installing heavier wheels is another easy way to move the CG forward.
I thought that nose looked a little short to balance properly; glad to hear my eye hasn't entirely left me yet!
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The Baby Bee has a short tank and a non-stunt tank, the Golden Bee puts the motor weight out there a little farther - bet that fixes the CG concern!
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Just glue another peice of plywood plate to the engine mount. H^^
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Here is mine almost ready for flight. Still needs clear coat. Not really sure why, I built it for a buddy to teach him ukie so it will probably have a short life. LOL Good it didn't take long to build nor cost much.
John
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Finally got around to flying it and it flew well. My buddy that I built it for was doing good up until he landed on all 4's from getting dizzy. I was laughing so hard I couldn't stand it. He stuffed it a couple of times and all it did was break the prop and then while trying a loop, it wound up being a 9 instead and it broke the fuse right behind the wing. A little CA and she was back up and going. I think I may build another one to teach my daughter to fly. She has been working on a 1/2 A Skyray for a year or better. I told her I wasn't going to build it for her but would help her anywhere she needed it. Video games and internet are winning so maybe if I build this it will get her interested. Who knows?????
John
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Video games and internet are winning so maybe if I build this it will get her interested. Who knows?????
I think that in 1000 years, if we aren't all back to plowing with horses, when a kid is born without legs the parents will say "oh good, this means they won't take up so much space on the couch playing video games". Or maybe when the parents sit down with the kid designer they'll have to argue for functioning legs:
"No honey, my grand-dad had legs that worked, and when the beer-bot broke down he could go to the refrigerator himself and get a can".
"Honestly, dear, I think this fascination of yours with machinery is a bit sick. Who ever knows what a frerijgeblator looks like, much less where it is".
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%^@ Rusty, I hope that your wife wasn't at home when you sat that model on the drier!! LOL %^@
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you asked for it!
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Those are a couple nice planes. They almost look like the Goldberg Stuntman 23 . I still have one that flys. Its at least 30 years old and looks like Frankenstein, Great trainer ;D