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Also yes, get some instruction, even if you have to drive a long way, it's worth it. An instructor will be able to make sure your planes are working right - that is not as simple as it sounds. |
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United States, VA, Fluvanna
Joined Jan 2011
924 Posts
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Then look at the fuse from the top and bottom. Imagine a straight line down the center of the fuse from nose to tail and make sure this line remains in the center the length of the fuse. If the fuse curves or bows, you need to fix that. Some people use hot water to soften the foam but I've never tired it. Just to be done with it, what I would do is find any places in the fuse where it bows, bends, or curves and make enough of a cut into the foam that it can be straightened out. Then cut a small piece of foam from Dollar Tree poasterboard or a grocery store meat tray and insert into the cut until it straightens the fuse. Then glue in place. But, yes, if the fuse is not straight then the motor shaft will likely be pointing in a direction that severly affects flight when under power. If just the nose is out of line then it will not affect unpowered flight significantly, if at all. Also, the main wing should be horizontally perpendicular to the fuse. If the fuse is not straight from the tail to the main wing this will affect flight (powered or not). To check the CG, measure 2.5" using a ruler placed under the main wing but against the fuselage. Mark this point on the underside of each wing. 7 quarters is a lot of weight, but you may be using a lighter battery than everyone else. I saw lots of folks saying to dig out the nose to move the battery forward but I would have suggested buying a slightly larger. heavier battery. By now, with your additions of foam to the tail, the rudder repair, and possibly weakening the nose area, I'd suggest getting a whole new WildHawk kit from NitroPlanes and moving the electronics into it. Or, even better, getting a Hobbyzone firebird Stratos and moving on. At least you can get any repalacment part you need for the Stratos. Quote:
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United States, CA, Oceanside
Joined Apr 2011
3,113 Posts
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I agree that you need to learn to fly first. Try the Ares Gamma 370. It has a 38" wing and can easily be upgraded to a full aileron wing and brushless system as you progress. Hobby Town carries all the parts the plane costs $79.99 as a Rx-R plane or $129.00 RTF. Did you build the WildHawk yourself or was the plane RTF when you bought it? I fly with two people that fly the WildHawk and it is indeed an easy plane to fly; just this weekend I saw a father and son who had no flying experience fly one of their's successfully.
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Joined Sep 2012
197 Posts
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Chuck, I bought the RTF version from Harbor Freight for about $65.
I just glued it back together today..... so hopefully will get another chance to try to fly it before the snow and winter comes. Goober, I took the foam I had added to the rudder and elevator off. I also glued back together the tail feathers for my Champ - even though I have another set ordered. Couple of questions on my Champ repairs that indirectly impact my other planes as well: 1) One of my wings on the Champ had broke at the cabin edge a while back. I had tried to glue and tape it back on but it still seemed too weak. So, I added a couple of popsicle sticks to the wings, positioned over the cabin and parallel to the wings. How will this effect the plane's aerodynamics and performance? How much glue/tape/other weight can it handle? 2) When I look from the wings back to the Stabilizer, it looks like the Stab may be a little tilted to the left. Same question as above. Is this the dihedral? 3) When I glued the Stabilizer on, I found that because of the toothpicks I had glued on to firm parts up, the back side of the Stab is kind of tilted up. I would expect it to be more inclined to climb now, but what other aerodynamics/performance would be impacted? Thx for all the help. |
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United States, VA, Fluvanna
Joined Jan 2011
924 Posts
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If you glued a popsicle stick across the wing then you probably straightened it at the break. If it looks even a little lopsided then, yeah, that will effect it allright. Not to mention that popsicle sticks are heavy. The weight of the sticks, glue, and tape will probably be a weight increase of over 25%. Quote:
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If I were you though, I would just wait for the new tail to come in and not fool around trying to make a bad repair less bad. I'm just being honest here. If you had someone at your LHS or another hobbiest helping you with these repairs they would have said the same thing. You may want to go ahead a get a new main wing too. A word of caution - be very careful removing the old tail from the fuselage. Do not just pull it off. If you do, you will mess up the flat surface and guide holes that are very important to installing the new tail. If these get messed up, your horizontal stab will need lots of adjusting while the glue sets and your vertical stab will not be vertical. If you have already covered this area with glue when you did your tail repair then you should sand/scrape/cut away all of it and get that surface flat and level again. |
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Joined Sep 2012
197 Posts
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I was going to remove those popsicle sticks and hot glue the wing back on when I decided to check my plane weight.
It is now 59g with the tape and popsicle sticks and toothpicks and hot glue added and a quarter taped to the front (to correct CG to 1.1inch from LE). I see that the natural weight of the Champ is 38g. Should my Champ be ok with 21 additional grams of weight? (I mean if all other things were good) Note that this is with the battery installed. Also note that the 2 popsicle sticks only weighed 3g and the quarter was about 6g, so if I remove all s/b maybe ~10g less. Should that make a big difference in overall performance? Note that my short flights with plane as is (in front yard) had the plane dropping and veering right. Really did not get to really test it out. |
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That's the main problem with the 55% weight increase - the plane probably won't be able to go fast enough to lift its own weight. |
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Sounds to me like you need to buy a sim....or join a club. If you can't get off the ground for more than 30 seconds you will not ever be able to learn anything. You could also use some repair advice that can actually look at your models because right now there is no way for us to tell if its actually your model or just inexperience. Don't buy more planes especially ones like the Sbach that type plane is for experienced pilots and you would be really disappointed.
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Bob6831,
With all due respect, you need to find someone, in you area with experience, that can help you. Your wasting your time and money and having no fun. I feel bad for you, because you should be enjoying yourself. 99% of the rc fliers out there are more than happy to help someone. You need to find one of these people. I feel for you Good luck |
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