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Post by Crazy Horse on Oct 8, 2013 16:07:45 GMT 1
Grrooaannn....yes. Please, Mr.Chinese fellow....go away!!! Why don't we just tell him " Fruck off cooky boy" ? Benny Hill would have done!
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Post by lonebeagle on Jul 20, 2014 23:31:04 GMT 1
So new guy here. I maidened my super Cub today and it is tail heavy. Totally stock out out of the box. I was able to control it but just barely. As tight as the battery is there must be something to do to adjust CG besides moving the cells. Something to puzzle about during the week.
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Post by renard80 on Jul 21, 2014 0:36:49 GMT 1
So new guy here. I maidened my super Cub today and it is tail heavy. Totally stock out out of the box. I was able to control it but just barely. As tight as the battery is there must be something to do to adjust CG besides moving the cells. Something to puzzle about during the week. Welcome aboard. Have you read, understood and inwardly digested the excellent advice from Flydiver on page 1 of this thread? BTW, he speaks of taping coins to the fuselage as necessary to correct CG. Many of us in UK - probably elsewhere - go to tyre (US = tire ) depots and scrounge the adhesive metal weights used to correct wheel balance. They come in various weights. You can usually get them free of charge with the correct friendly approach.
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Post by hghost on Jul 21, 2014 3:08:54 GMT 1
I added a few cents in the Nose Cowl and now the CG is perfect.
You need a good CG machine or you can make yourself one
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Post by Knackered Sailor on Jul 21, 2014 10:02:13 GMT 1
This really puzzles me as a stock SC will, surely, be the same as every other. Once trimmed mine flies perfectly and has since I had.
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Post by flydiver on Jul 21, 2014 14:20:18 GMT 1
So new guy here. I maidened my super Cub today and it is tail heavy. Totally stock out out of the box. I was able to control it but just barely. As tight as the battery is there must be something to do to adjust CG besides moving the cells. Something to puzzle about during the week. What kind of experience do you have that you are able to determine that it's tail heavy right out of the box? Did you actually measure the CG? Do you know how to trim a plane out while in flight? What were the flying conditions? It's a pretty bold statement to come in, say you are brand new, and make a claim like that with no history for the forum to go on at all. There is nothing but adding weight to adjust the CG, assuming it is assembled correctly. It has a wide CG range and is pretty forgiving in that regard. If anything it tends toward a bit of nose heaviness, like most trainers (most planes). The last guy that said that finally admitted to his tape job screwing things up. Until proven otherwise I think something else is amiss.
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Post by lonebeagle on Jul 22, 2014 0:29:11 GMT 1
Sorry, I was not trying to make anybody mad. I was just commenting that my plane seemed to fly like that. That was my reasoning, when I tossed it to launch the tail dropped and it took a lot of down elevator to keep it out of a stall. I have flown mini flyers inside a fair amount the past few years.
Also, I was looking for a suggestion that might not involve adding weight.
Anyway thanks for the responses.
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Post by flydiver on Jul 22, 2014 1:40:36 GMT 1
I consider 'minis' to be virtual flying, almost like a SIM. They let you learn controls but they just don't quite fly the same. They can be fun though. Read this whole thread. The known CG is posted. Measure it. Adjust accordingly if necessary. If it's on and your elevator is neutral (flat), and you have enough power/speed to fly then you potentially have something set up wrong. Prop on right? The Cub needs to fly a LOT faster than a mini, half throttle minimum, 3/4 throttle is more like it. Not enough speed > bad results will happen. That could have been your problem. Not angry, just get a bit defensive when a first time poster comes in with a declaration like yours. We don't have a reference for your ability and background. Note-I've done that myself in other forums where I had LOTS of background and knowledge but the members had no idea who I was. These thing are as much, or more, social as they are for information. This one may be MORE social than informative, unless you have a overriding need to know about some obscure products you put on the most worthless bread product you can imagine.
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Post by hghost on Jul 22, 2014 3:20:23 GMT 1
Sorry, I was not trying to make anybody mad. I was just commenting that my plane seemed to fly like that. That was my reasoning, when I tossed it to launch the tail dropped and it took a lot of down elevator to keep it out of a stall. I have flown mini flyers inside a fair amount the past few years. Also, I was looking for a suggestion that might not involve adding weight. Anyway thanks for the responses. I recently had an issue with a Micro Pitts S 1S....I checked CG when I installed the battery ( did it with my fingers ) the plane is small and I simply do not know how to set the CG on a Bi-plane especially one so small with my CG machine. So had to do it manually as it were. But flying it , it just was not a pleasant time. I could never find a middle ground....throttle up and it climbed out of sight, throttle down and it wanted to stall....I could throw it all over the sky, i simply could not fly it smooth and easy. I mentioned it on that other forum and immediately everyone said it had to be nose heavy from my description of it's actions. I disagreed knowing what i checked and how....the plane has an up-pitched motor and the batteries I was using were Turnigy nano-tech 300mAh 35-70C an extreme amount of power output it seemed , plus that up pitched motor mounting and in a micro...for me was a little plane hard to handle. Not Nose heavy CG..just a well of a flying machine. On your Super Cub Could be adjustments, could be the trim settings were off to start with and it could have been nose heavy. I put some packing tape on my plane before I set CG . It was Tail heavy when I set the CG here on my Super Cub As you see it took 12 Cents to get it to level . The inside of the cowl should be enforced with tape anyway...so checking and setting CG is a must to start with ( or should be anyway)....and seeing how I did the wing saddle mode and added larger wheels and taping the leading wing edge and the rear Stab....I checked it several times. And as I said since you need to tape inside the cowl, IF you have to add weight that would be the place and time to do so. I simply taped that 12 cents inside the cowl..works fine. Some said theirs was fine and with a little trim they did not have to do anything else. But everyone should check the CG before flying, one never knows. Hope that helps you some.
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