Thanks x. I’ll try that in the AM and let you know…
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Official Freewing Twin 70mm AL37 Airliner Thread
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Originally posted by xviper View PostNot precisely. I have those rods glued in so I can't measure exactly from one end to the other for the main one and the smaller ones, I can't say how much is inside the wing.
i traded my Draco for this bird and the tube big got left behind...
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Viper, while i was able to bind it and get the ESCs to arm on my ix20, when i went to bind it to my buddy's NX8, it did the same thing. I tried moving all the throttle trims as low as they would go, but still just sat there beeping upon binding. All other function were working. The only thing i didn't try on the NX was reversing the throttle in servo set-up... We're going to try her again this week and i'll try doing that as well to see if that may be it, but this is frustrating...
Maiden went ok, but not much more than that. She banked left pretty good on lift-off so I was fighting her all the way around. I only took one lap and then brought her in to diagnose. I think the right aileron was down just enough to cause that, but I was shaking so bad after that that I'd had enough and needed a margarita... :) We'll try again on Friday this week...
Any thoughts on the ESC issue with the NX...?
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Originally posted by jasmith41 View Post
Viper, while i was able to bind it and get the ESCs to arm on my ix20, when i went to bind it to my buddy's NX8, it did the same thing. I tried moving all the throttle trims as low as they would go, but still just sat there beeping upon binding. All other function were working. The only thing i didn't try on the NX was reversing the throttle in servo set-up... We're going to try her again this week and i'll try doing that as well to see if that may be it, but this is frustrating...
Maiden went ok, but not much more than that. She banked left pretty good on lift-off so I was fighting her all the way around. I only took one lap and then brought her in to diagnose. I think the right aileron was down just enough to cause that, but I was shaking so bad after that that I'd had enough and needed a margarita... :) We'll try again on Friday this week...
Any thoughts on the ESC issue with the NX...?
The banking left may be an indication of a couple of things .................................
1. The two ESCs are NOT calibrated so they are both running exactly the same. Do the throttle calibration and see if that fixes it. ------- TX ON with throttle stick at max, throttle cut inactive. (Hold the plane in case it powers up.) Plug in flight battery and listen for initial tones and then quickly and immediately lower throttle stick. You should then get the tones for the # of cells (6). Calibration done. Don't wait too long or it'll go into ESC programming mode. If that happens, don't touch the throttle stick, just unplug the plane and try again.
2. After it took off and you got it under control, did you have to use a lot of AIL trim to make it fly straight and level? Or did it eventually fly straight and level on its own as the speed picked up? If it was the first case, then it was simply out of trim or one of the wings is warped. If it was the second, I would suggest that you lifted off too soon (not enough airspeed) and it almost tip stalled. Next time, wait till it speeds up more before rotating. The maiden flight should also be your trimming flight. Fly the plane straight into the wind or with the wind at about 3/4 throttle and trim it till it can fly level "hands off". Do this with NO flaps, gear UP is best. If you are a bit shaky on your maiden flight, have a helper pilot stand at your side to work the trimming tabs at your direction. Remember, if you are using a Spektrum smart RX, after you do any trimming, you must fly it hands off for 3 to 4 seconds for the trim to take effect. Repeat as necessary. Best to do this up high, but not too far away.
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Sounds like just a ESC not sensing the high and low throttle positions. It does need to sense low position to arm. It can be a lot of different things from ESC calibration to the way it was bound, with failsafe set maybe high, throttle cut on and too high, etc. And yes, reversed channel in the radio.
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Thanks guys - i appreciate the input and will give it all a go again this week... Buzzy did discover on weighing both wings while off the plane, the left one weights an ounce more than the right one. The guy he bought it from painted it with gray primer to sim the MI Air Guard livery and i don't think he sprayed it light... :)
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I am pretty amazed at how effectively the AL37 slows down during approach. It does not like wind. Take off distance is amazingly short even on rough grass. It can handle rough grass very well. It needs a lot of space when flying.
My first AL-37 went down due to a faulty BEC after a minute. I could show in a video how the electronics work fine after the crash with a normal battery and stop working with the stock BEC. They had a lot of further background questions. Got a full refund from MotionRC in form of a MotionRC.eu shop gift card. That was a very fair process.
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Hey Folks,
I apologize for asking and not read through all the threads but what glue are you guys using to join the fuse? Foam safe CA, 30 min epoxy, the included rubber cement method etc... I ask for I thought I have read somewhere that a few folks have had their plane separate on a rough landings. Much appreciated as I start on this adventure with my custom livery AL-37.
Thanks
Mike
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Originally posted by Skeley68 View PostHey Folks,
I apologize for asking and not read through all the threads but what glue are you guys using to join the fuse? Foam safe CA, 30 min epoxy, the included rubber cement method etc... I ask for I thought I have read somewhere that a few folks have had their plane separate on a rough landings. Much appreciated as I start on this adventure with my custom livery AL-37.
Thanks
Mike
The glue supplied with the kit is OK. Or use Foam-Tac. Two important things:
1) Score the joining faces with a razor knife tip.
2) Insert a couple of short carbon rods or tubes into holes that you drill into the fuse halves….about 3 in long each.
If you call top dead center 0 degrees as reference, put a short rod at each 45 degree clockwise and counter clockwise point as measured to the 0 ref point. Careful to drill parallel to the fuselage sides….don’t poke the drill out the side.
Insert this carbon and you won’t have any separation problems. These tubes or rods supply additional support to the rods/tubes already in the kit.
-GG
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