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Building Tips and technical articles. => Building techniques => Topic started by: Allen Eshleman on April 05, 2017, 04:25:48 AM
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My brother and I are attempting the rebuild of a crashed 402. Things are pretty messed up in the bellcrank area.
Does anyone have a picture of how it should look in there? Or, at least a picture of the instructions for that plane in the bellcrank area? Any help will be appreciated.
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Here you go. That will cost you one OS.25FP tho :)")
(https://uploads.tapatalk-cdn.com/20170405/6ec1b44331da471f3d6b8f24d747b068.jpg)
(https://uploads.tapatalk-cdn.com/20170405/4a28d4c9bb1bde04546c0eaa723779ea.jpg)
(https://uploads.tapatalk-cdn.com/20170405/0665494910a3898e3bbe1c6fc5b01e10.jpg)
Sent from my SAMSUNG-SM-G891A using Tapatalk
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I suggest that you use a longer bolt and another piece of ply at the top over the bolt.
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I suggest that you use a longer bolt and another piece of ply at the top over the bolt.
^^^^^^^^^^^^^
+1, that is some good advice. I like to do that on the ARF models as well, since I normally take the bell crank out and bush the lead outs anyway.
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This is a very stable platform for the bellcrank that Gordan Delaney helped me install in my wing. Note that the plywood bellcrank platform is supported by the spars and two ribs.
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Looks good, but I still prefer top and bottom support on the bolt, just because the pull test puts a twisting force on the platform without the top support.
That being said, it will no likely last 100 years!
I hope you get to test that.
R,
Chris
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Thanks to all of you. Still trying to figure out if I want to do it. It's doable but it is questionable.
James, I wish I had another FP 25 or so. How wonderful it would be to have an abundance of them. I had an older 25s on this plane and it flew well.
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I'm not sure this is what your looking for but it is Shark related. This is the bellcrank mount system as shown on the plans for the Jetco Shark 45. Free plan down load available at Hippocket. The crank is suspended between two plywood panels.
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After some careful thinking, I decided to buy a new kit and to model any pieces for repair of the old one off of the correct parts and plans. Hopefully, I will end up with two functional Shark 402's. The flights I had on the crashed one were very positive. I really like this plane, nice looking and very maneuverable.
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I just want to say thanks to all of you for your advice and to my brother who did most of the work.
This picture is before the crash.
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The wreck.
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And now. The lastest version of this Shark 402 and my brother master repairer, Ron.
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Looks great!
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Thanks, good finishes are my brother's work.
Does anyone know if it works alright to keep the Hayes tank mounted with the foot against the fuselage? I usually put it down. I will have to cut the mounting straps and start over with the tank mount, it that's necessary. All that lacks is tightening the tank. Then, it's ready to fly.
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The way I use zipties is drilling 4 holes for the zips to slide in and tighten the heck out of it.. doesnt budge
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How have you got it vented? As long as the pick up is in the fuel while flying and the vents are in the right place, it should work as you have it mounted. Now, what caused the crash? VD~
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Actually, I was able to slip the ties off the ends and flip it, foot down, which is the way I had it before. It is tight and ready to go. Now, it's time to fly.
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James, that sounds like a more secure way of installing them. I saw a picture of them like that in another post.
Also, Doc. As the tank is mounted with the bulge or foot down. The pickup is the lowest one. I use the middle one as the fill and then cap it off. The top one I leave uncapped. I am not using pressure. The motor is an OS 25 pre FP. Seems to run fine.