Craig Thomas Posted April 19, 2016 Author Share Posted April 19, 2016 Thanks for the tips guys. I've just checked and it doesn't seem to be distorted. 😇 I'm going to attemp the other half this afternoon. Then for all intents and purposes the build is finished. Just refit the engine and sort the CG out. 😬 Maiden next week with a bit of luck. 👍🏻👍🏻👍🏻👍🏻🤓 Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted April 19, 2016 Share Posted April 19, 2016 Great. I shall lookforward to seeing/hearing about it. Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted April 19, 2016 Share Posted April 19, 2016 In case you do find a little warp: force the wing in a warp the same amount in the opposite direction and GENTLY heat the film (I used a hair dryer for this). Let cool down and check. Repeat until satisfied. Quote Link to comment Share on other sites More sharing options...
Chris Barlow Posted April 19, 2016 Share Posted April 19, 2016 No rush Craig.Double check everything and get it nice before the maiden. Much less to worry about then and you can just enjoy it. Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted April 19, 2016 Share Posted April 19, 2016 To be honest I would be amazed if shrinking the film could induce a warp in that wing. However it would be possible to warp the ailerons when covering them Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted April 19, 2016 Share Posted April 19, 2016 Posted by Chris Barlow on 19/04/2016 12:11:54: No rush Craig. Double check everything and get it nice before the maiden. Much less to worry about then and you can just enjoy it. There used to be a poster up in every RAF hangar that I ever worked in. "DON'T ASSUME. CHECK" It is worth having one up in one's workshop. I know that occasionally I do assume. I usually regret it. Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted April 21, 2016 Author Share Posted April 21, 2016 Da da. One complete wing. All servos working, surfaces hinged, and landing gear installed. Now all that's left is to refit the engine and she's all together ready for a maiden. Anything that you can see from the wing that is missing or not quite right? Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted April 21, 2016 Share Posted April 21, 2016 Looks very good to me. Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted April 21, 2016 Share Posted April 21, 2016 One thing: it looks like your aileron pushrod is at the outer hole on the servo and quite far in at the aileron horn. Given that the servo does +- 45 degrees and your aileron should not have more then about +-20 degrees I usually have them the other way around. (so a longer out at the rudder horn then at the servo side). Have you checked that with your transmitter servo setting on 100% and no DR you get the aileron deflections that Peter specifies in the article?. Having them like this is wat 3D flyers do. They need 60-70 degree deflections on the surfaces. But a Ballerina does not. Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted April 21, 2016 Author Share Posted April 21, 2016 Thanks for the tip Lukas. Rightly or wrongly, my normal process for getting the correct amount of surface movement is to adjust the travel settings on my transmitter. It's no biggy to change wholes. 👍planning on finishing the running in process on the engine tomorrow afternoon, then I can get her all bolted together. 😊 Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted April 22, 2016 Author Share Posted April 22, 2016 There is one question I wanna pick the pro builders brains with, what's the best glue for gluing pin hinges on? The reason I ask is because I was gonna use CA hinges on the Ballerina. But unfortunately on the ailarons, then cutting the grooves, I thought it would be a good idea to use the hook blade thing to open up the slits a little. What was i thinking? The blade is thicker that the hinge, so when i can to gluing the hinge in I could not get a reliable bond so it forced my hand towards pin hinges I've learn through robarthinges to use Vaseline on the actual hinge it's self, but I always get epoxy everywhere is there a trick that I am missing? At the end I always have to spend ages chiselling the hard epoxy out and of course, damaging the covering Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted April 22, 2016 Author Share Posted April 22, 2016 And sorry Lucas, I've just noticed I spelt your name wrong on one of my previous posts. Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted April 22, 2016 Share Posted April 22, 2016 Right, I use the CA hinges but as you have used a much thicker blade that is not possible any longer. For future reference.I actually make my slots with an Xacto type knife with a chisel shaped blade. As for epoxy. Well, you use the vaseline to protect the actual hing area You can use either methylated spirit (alcohol) or acetone to remove surplus apoxy before it goes hard. Nail varnish remover is mainly acetone. Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted April 22, 2016 Share Posted April 22, 2016 Graig, By setting down the travel in the transmitter you are effectively only using a part of the servo travel. That means each step of the servo is a bigger amount of surface travel. In addition the slop in the servo gear and the linkage has more effect (sloppier surface). I am not sure whether one would notice it in flight though. Consider using polyurethane glue for your nylon hinges. The glue expands, thereby filling both the holes in the hinge and any cavities you have made. I use Gorilla glue, that sticks well on most materials.But do roughen up the nylon so the glue has more "ridges" to key in to. If you have a hinge to spare do a trial on a spare piece of balsa and try to pull it out afterwards. I would be surprised if not the balsa desintergrates first. Good luck, Lucas Quote Link to comment Share on other sites More sharing options...
Bob Cotsford Posted April 22, 2016 Share Posted April 22, 2016 I'm pretty good at getting epoxy everywhere too, so now I use masking tape to protect the surrounding area and keep a meths dampened cloth handy to wipe sticky fingers on. Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted April 26, 2016 Author Share Posted April 26, 2016 Does anyone know if BEB, KC and AVC have finished there builds? They were plorific bloggers at the start of the build but have heard no more from them? Would love to see there finished models. 👍 Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted April 26, 2016 Author Share Posted April 26, 2016 Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted April 26, 2016 Author Share Posted April 26, 2016 Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted April 26, 2016 Author Share Posted April 26, 2016 Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted April 26, 2016 Author Share Posted April 26, 2016 Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted April 26, 2016 Author Share Posted April 26, 2016 Just waiting for the spinner to be delivered. Forgot all about that. Then balance and fly. In the pics the cowl is not on. But it's all ready. Once balance and ready I'll add some pictures to the finished thread. Please note the hand cut Decals. Quite pleased with them. There is another letter due to go on the wing, but due to superstitious reasons it can't go on for another 6 weeks and 4 days or there about. They are the first initial of all my family members. Craig and Rebecca and the 2 dogs Henri and Tobi Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted April 26, 2016 Share Posted April 26, 2016 That looks good Craig, very classy, difficult colours to work with as well As you're superstitious i'll leave the extra letter be for now BEB, Alex, I think have been busy with work ? K.C finished his I think but not sure. John Quote Link to comment Share on other sites More sharing options...
Craig Thomas Posted April 26, 2016 Author Share Posted April 26, 2016 Thanks John. The silver truly was a pain in the arse. But the blue was pretty easy. It was inspired by a picture of a real plane I found Online, but my blue is a bit darker. 😧 still please with it though all in all. It's very nose heavy. That's without the cowl and spinner on. Think I'm gonna have to rob the local church roof lead for this one. 😲 Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted April 26, 2016 Share Posted April 26, 2016 Put your rx battery as far back as possible, bit of lead on rear end won't spoil it, all maidens have been positive John Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted April 26, 2016 Share Posted April 26, 2016 Craig, you only need a little weight at at the fin post to make up for a lot in front. It is more throublesome the other way around. With regard to my build: final sparkling and covering is still to be done. But spring has come, which means the boat needs some attention, there is a garage to complete and last but not least the flying season has started and with the first F3A competion only 4 weeks away I try to get 2 trainings a week in. So the only time for the Ballerina is when it is raining to much for anything else, which it does notl Good luck with the maiden! Lucas Quote Link to comment Share on other sites More sharing options...
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