Peter Miller Posted January 17, 2023 Share Posted January 17, 2023 Yes, canopy glue as well. It helps to screw the canopy down with the top screw to stop it moving before applying the glue. This stops the canopy swinging and getting the glue spread beyond the frame.. It is a long time since I did the job and my memory is getting a bit rusty these days!!!🤔 Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted January 17, 2023 Author Share Posted January 17, 2023 Screwing the canopy down worked like a charm. I am temped to leave it like this (without glue). However, the laminates on the wing are balsa, so the screws do not hold that much. Probably better to glue the canopy down. Quote Link to comment Share on other sites More sharing options...
Nick Cripps Posted January 17, 2023 Share Posted January 17, 2023 Remove all the screws and the canopy then put a drop of cyano in each screw hole to harden the threads. Leave it for several minutes until the cyano is completely dry and then reassemble. No need for glue, the hardened threads in the balsa will be more than adequate to retain the canopy. Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted January 18, 2023 Share Posted January 18, 2023 10 hours ago, Nick Cripps said: Remove all the screws and the canopy then put a drop of cyano in each screw hole to harden the threads. Leave it for several minutes until the cyano is completely dry and then reassemble. No need for glue, the hardened threads in the balsa will be more than adequate to retain the canopy. That sounds good to me. Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted January 18, 2023 Author Share Posted January 18, 2023 10 hours ago, Nick Cripps said: Remove all the screws and the canopy then put a drop of cyano in each screw hole to harden the threads. Leave it for several minutes until the cyano is completely dry and then reassemble. No need for glue, the hardened threads in the balsa will be more than adequate to retain the canopy. Thanks Nick, this is so great about the forum. I would not have thought about this myself. I may also do this in the holes I have to make for the aileron, elevator and rudder horns so that the balsa does not compress so easily. 2 Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted January 20, 2023 Author Share Posted January 20, 2023 Second part done. This one took a lot of time to get (more or less) right: I did not like the yellowish shine from the PETG I bought. And it was not very clear either. But by accident I found out that this was due to the protective film on both sides.... Better to leave the film on until everything is finished. Cheers, Lucas 1 Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted January 21, 2023 Author Share Posted January 21, 2023 And the last part went smooth: Now take off all parts, impregnate the holes with CA and mount again. Cheers, Lucas Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted January 21, 2023 Share Posted January 21, 2023 Life get tedious, don't t!!! Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted January 22, 2023 Author Share Posted January 22, 2023 The cockpit is very nice after the protective films are removed from the PET sheet! Glueing the hinges is done: and this time I did remember to mark where the slots for the hinges are while covering, so it was not difficult to find them back! Soon the flappy bits will start flapping... Cheers, Lucas 3 Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted January 22, 2023 Share Posted January 22, 2023 Very tidy work Lucas. 👍 Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted January 25, 2023 Author Share Posted January 25, 2023 Servo's are mounted in the wing and the leads pulled out. Aileron horns are mounted. I usually make the connections between the two (for the ailerons) by cutting 2mm carbon rod and glueing this with epoxy in the clevises. I prefer ball links, mostly because they do not add any slack. I addition here there is no good alignment due to the tapered wing. Ball links absorb minor misalignments gracefully. 2 Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted January 27, 2023 Author Share Posted January 27, 2023 Ready for maiden: Some scale details are lacking, and I needed 60 gr lead under the tail to get the CG right, but we should be able to fly. Lucas 5 Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted January 27, 2023 Share Posted January 27, 2023 I will look forward to hearing how you get on Quote Quote Quote Quote Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted January 27, 2023 Author Share Posted January 27, 2023 The weight is 2250 gram ready to go. A bit heavy I would say. But I am using 4000mAh 5 cell batteries (because I have them), and a motor on the bigger side. The battery is halfway under the wing; I cannot get it further back and still have i on the battery plate. If I like the plane I can invest in 3000 mAh batteries, that should already help a 100 gram. Today was a nice quiet day. The coming days are not, so it will be more towards the next weekend before we give it a try. I could do some details, but now I feel more like taking a break from building. Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted January 27, 2023 Share Posted January 27, 2023 With that power the performance should be very good. My Destiny on similar power etc does consecutive vertical rolls. Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted February 2, 2023 Author Share Posted February 2, 2023 Maiden today! -6 degees, no wind and sunshine. And (of course) no other pilots on the strip. I needed a lot of up trim to get her to fly straigth. Adding another 25gr to the tail helped with inverted flight. After some fiddling with expo (back to 0%) the plane behaved well. It took another battery to feel at home, but now we are friends. Thanks Peter for yet another good design! Snow tomorrow, and a lot of wind in the weekend. Time to work on some more scale details. 6 Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted February 2, 2023 Share Posted February 2, 2023 Hi Lucas So glad that you are happy with the Chaos. Ye Gods! -6 degrees!!! I obey the 10-10 rule ..... Above 10 degrees, below 10miles an hour!! Quote Link to comment Share on other sites More sharing options...
john stones 1 - Moderator Posted February 2, 2023 Share Posted February 2, 2023 Lovely work Lucas. Quote Link to comment Share on other sites More sharing options...
Adrian Smith 1 Posted February 4, 2023 Share Posted February 4, 2023 Cracking job, I would love to see a video of it! Quote Link to comment Share on other sites More sharing options...
Stuart Z Posted February 4, 2023 Share Posted February 4, 2023 Excellent looking model Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted February 5, 2023 Author Share Posted February 5, 2023 Since I used less then 2000mAh of the 4000mAh capacity in over 10 minutes flying I changed the motor from a Turnigy 4240 to a Turnigy 3542 that weighs 50 gram less. That made it possible to remove 20 grams of lead from the tail. Testing this with a 4S 3000 mAh (that weight 300 gram) instead of the 5S 4000mAh (that weighs 450 gram) showed that the RANS does not need that much power. I could still do 2 rolls in a vertical upline before running out of steam. Actually the plane felt smoother, with both 200 grams less weight and less power. This will be the "goto" plane for winter flying, also because I can transport it assembled and then one only needs to pop in a battery in the cold. Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted February 6, 2023 Share Posted February 6, 2023 Mine uses a 3541 1070 motor. To honest I know little about motors and just ask George at 4-Max and his recommendation always works. Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted February 6, 2023 Author Share Posted February 6, 2023 A 1070kv motor on 3 cells will turn the propeller about as fast as a 800kv motor on 4 cells. The power used is a function of the propeller used. Quote Link to comment Share on other sites More sharing options...
Lucas Hofman Posted February 16, 2023 Author Share Posted February 16, 2023 Very pleased with how the RANS is flying now. However, ground handling (wheels on asfalt) is challenging: The plane is unstable and has tendencies to ground loop. One needs to be very carefull in take-off to keep her straight. Same when landing, as soon as some yaw occurs (think sidewind) the oscilation gets worse. If not landing very carefully (3 point landing) the plane will bounce up. Espicially when it is a little gusty this is not so easy to achieve. Partly this is probable due to the short tail moment, which we cannot do much with. The gear is as drawn, 4 mm steel wire. Currently with slight toe-out. Any ideas if this can be improved, and if so, how? Cheers, Lucas Quote Link to comment Share on other sites More sharing options...
Peter Miller Posted February 16, 2023 Share Posted February 16, 2023 Possibly slight toe in might help. A friend who built one finds that it wants to tip on its nose at the end of the landing run. Mine seems alright although it is some time since I flew mine. Sorry that I can't be more helpful. Quote Link to comment Share on other sites More sharing options...
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