Anton Webers
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Everything posted by Anton Webers
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OK, yes. That makes more sense. I haven't checked for the tool before and thought it's one where you type in some weight elements of your components or so. But considering wing dimensions and the tail is a more accurate way than what I wondered you did Thanks for sharing, Anton
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I am not sure I can follow you. The CG is where the center of gravity is by weight. So the point where you can balance the plane on one finger, or on a line perpendicular to the axis and horizontal. So calculating it will most likely end you up with the wrong value if you have no clue on what the weight distribution is. The important point is to shift the CG to the location around the CP (center of pressure). Only then the stability is the best. So the CG is better measured than calculated. Either the construction plan is giving you advise on where the CG should be, bad on their knowledge of the CP location, or if that is also off like some other things in the plan, then typically the CP is somewhere around a certain location of the wing cord. This video explains it pretty nicely. Video Boris
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Yes, very nice.
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The tail part of the fuselage where the sides are just balsa you mean? Yes, I was wondering about the stability of the sides. I was also considering to cover the top part with a thin balsa sheet covering the ribs. Makes it look smother. I need to buy good foil anyway and hope it won't deform that much then.
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Ah OK. Yes, maybe a good idea.
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Hi Shaun, Oh, I thought you cut it off vertically judging from your post last time. Do you mean fillets between the horizontal and vertical stabilizer? Yes, they are not yet ready. I need to get some more coarse sandpaper first, I only have super fine one left. By the way, the slot in the end part of the trail as well as in the wing end part been the wing and the aileron look a lot like slots for some fabric hinges.
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Based on the way the rudder parts are cut and arranged, I'm wondering if the rudder was not meant for a horn balanced rudder like the Piper Cup has (Image). Not sure about the aerodynamic effects for this plane and if it is beneficial or makes things worse. But if I would cut the horn off, it's harder to undo it later. If anyone has some experience on the behaviour with a horn balanced rudder, let me know 😁
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Yes, the screws for the wheel axis were also not really useful without some additional nuts and washers. I was thinking about the same approach for the motor cowling. I used the balsa parts that came for it, but want to use some plywood for screws as well. Good to see that I'm on the right track 😁
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Hey Jeffrey, No I don't have that model, but if you have the same problems we do, then it's mostly no correct instructions and some part numbers wrong. The instructions either show wrong part numbers or not the detail needed. If you read through here, you probably recognized similar things from your set. I mean some fiddling around is fine, but the accuracy in the numbering of the parts or assembly itself should be more according to the plan. But they do have nice models, just the assembly quality of their sets could be better.
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Ah yes, OK. Yes, I won't do that either. I was just wondering when I wanted to cut out all the parts for the rudder and that one wasn't right.
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Hi Shaun, Am I missing something or does the party K1 at the base of the vertical stabilizer not exist? Instead I found I6, H5 and K4 with the last being balsa and the others being plywood. The two plywood would be a bit too thick, so the one plywood with the balsa would just be right. That's strange isn't it? Was it the same for you?
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Ah OK. I thought that was supposed to be the hinge. But that makes sense. Yes, I'm a little behind you with my model. I was just wondering from the plan on how to do the ailerons. But like you said, it needs a gap. I guess I'll figure it out once I get to that point 😁
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Perfect, I was wondering how I'm supposed to get the cockpit in with D3 (actually D5) and B2 glued to the fuselage and not as a support for the cockpit skin. Yes, I'm also building the electric version. Thanks
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Not sure that hinging will work properly. I feel you'll need a hinge on the outer end as well. I haven't figured out the solution for the ailerons yet, but the rudder and elevators will be hinged with either a hinge (need to check the thicknesses that exist, hinge tape or a fabric like hinge fleece. The later reduces the needed thickness compared to normal hinges.
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Hi Shaun, Lucky I found your post here and that you're building the same plane 😁 I think I noticed that you seem to have forgotten to put the wing mounting screw inserts into Part E6. It'll be a bit harder later but still doable. I have two questions. Did you put B2 (seconds page) and what they named D3 but is actually D5 (third page) onto the cockpit plane D1 or did you glue it onto the spots they used? It'll be hard to get the cockpit in the way they did. What is the metal thing you glued into the holes of D1 or D3? Magnets for the cockpit to stick?
