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Subsonic,
I had something identical happen on my AMR. In my case a servo (not a Hitec) developed an internal short, overloaded the BEC and the BEC shut down taking away all power from both RC and the motor. I was lucky too and got away with just a dislodged landing gear leg. I initially thought either the BEC or Rx had gone bad but when I unplugged one of the servos it all started to work again, soon as i plugged the servo back in it all locked up again. I replaced the servo and it's been fine ever since. It's certainly not a brown-out because they are just caused by a momentary voltage drop and everything would have started working again by the time you walked over to the crashed model. It could conceivebly be a bad BEC or Rx as I initially thought was the case with my failure but try unplugging the servos first.. i bet that fixes it. Steve |
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I’m still confused, but with the lack of any better knowledge on the subject, I think I’ll just check out all the servos one more time, fit a 5A BEC and continue flying it. Maybe I’ll rig up a current meter from the BEC. Hmmmm. Sub |
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Fantastic video. Especially the AMR sequence made my day. Gosh, I love that plane. Thanks for this. You are really on the roll. |
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Good news...
...is that I think I managed to solve my issue with loss of RC control of my AMR. After checking out and finding that all the servos were OK, I fitted this rather large BEC and all ops were normal for Saturday's flying. I put four packs through it, and everything worked as expected. No brown outs.
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...On the last pack of the day (isn't it always on the last pack) I was doing some low rolling harrier circles at about 10', quite close in. I just lost concentration for a moment in the third quarter of the circle, and found myself just about 1/4 of a roll behind in the stick movements. – (I actually find the AMR to require quite an advanced input to maintain a straight line in a roller for some reason), but anyway - I froze, and pushed out inverted (correct), then for some reason tried to pull into upright again from about 10' (incorrect). The result is best described in the pictures, but the whole area that locates the top and bottom wings, firewall, rear fuselage and battery tray is matchsticks. Both wings are damaged at their mount points too.
I don't think I'll try and repair this one. At least not right away. Overnight I removed all the components and am thinking about my next 3D airplane. I did very much enjoy the AMR for as long as I had it. It was a fragile and temperamental beast, but when it was on song, was quite an honest flyer. Very light on the wings and quite nice straight lines as well for such a small plane. I’ve always been impressed by the power system with so much on tap it really makes people question if it’s more than a little 3S 2200 in there. I still have the motor etc, so am wondering what it would fit nicely into. Anyway, on to better things... Sub |
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That....Is a Bummer
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just ordered a green AMR, and first PA airplane. Subscribed.
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