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Post by cptrack08 on Jul 3, 2011 15:08:50 GMT 1
Hey Guys, just signed up for the forums here after my unsuccessful maiden flight with my new super cub. I flew in too much wind and let my plane get downwind of me and ended in a tree. Unfortunately now my plane is unresponsive to any of my inputs. I think i broke my receiver or do you guys think it is something else? I'm excited to talk on these forums with you guys and have already learned about wind the hard way. Never making that mistake again!
After: I was on Horizon Hobby's website and reading through all the reviews of the Super Cub and saw that someone said the circuit board in the receiver does not have a fuse and he fried his receiver from ending up in a tree like me. Does this confirm my original thought that it is my receiver? And is there any way to test if I'm correct?
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Post by flydiver on Jul 3, 2011 16:41:34 GMT 1
It's your receiver. Actually it's the speed control portion but they are both in the same 'box'.
If you don't turn your throttle off INSTANTLY when the prop gets stopped it makes a dead short in the motor > amp draw goes through the roof > ESC burns out.
The only good way to test is replace.
FWIW-almost every one does this at least once.
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Post by renard80 on Jul 4, 2011 0:45:02 GMT 1
flydiver: With due regard to your greater experience, I thought you might like to know this: While learning, I crashed the beast many times at full throttle, including treeing her twice. Often broke the prop as it gouged up the earth. I also tried (unsuccessfully) to free her from a tree, and from a rooftop, by repeatedly giving full throttle. (See what a good pilot I was / am . . . ). In my ignorance, I did not "turn the throttle off instantly" during these disasters - but I did not suffer the ill-effects you describe. Many months on, all my electronics still function perfectly. Just thought you would like to know.
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Post by renard80 on Jul 4, 2011 0:48:16 GMT 1
cptrack08: The Super Cub has a strange magnetic attraction to trees. It's a design fault. ;D
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Post by flydiver on Jul 4, 2011 1:02:09 GMT 1
I think your experience has to do with quality control on the RX/ESC unit (or lack thereof). Some folks fry them merely by turning them on. Others fly around with the 10x8 stock prop on lipo and suffer no ill effects.
OTOH - it seems the vast majority of new fliers will have the experience described and the problem is often (but not always) a burned out ESC. For the Cub it's almost guaranteed.
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Post by cptrack08 on Jul 4, 2011 3:12:40 GMT 1
Thank you guys! I figured that's what it was since I definitely did not cut the throttle right away. And I hope my SC isn't a strong magnet then. ;D
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Post by pauliepilot on Jul 4, 2011 12:55:59 GMT 1
Mine ended up in a tree for 5weeks "how anoyed was i" but it did come down...bit of tape new lipo n it was flying again!?
2weeks later it got sucked in again diffrent tree i wasnt waiting 5weeks again so asked a good friend of mine to go get it for me :-) stupid trees
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Post by renard80 on Jul 4, 2011 17:11:14 GMT 1
Mine ended up in a tree for 5weeks . . . . Which experience could act as a reiminder to newbies in particular. Planes can get stuck high up in trees for very long times before falling out when you're not there. Other times they can get swept away by sudden wind, or simply fly away due to malfunction. If someone finds your lost plane, or perhaps just the wing that fell off, could they return it to you? Put your phone number on the fuselage and wing.  |
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dano57
Flying officer
Posts: 4
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Post by dano57 on Jul 4, 2011 19:57:28 GMT 1
Well, I experienced the same lot of evil tree snatchers yesterday due to wind, poor technique and maybe a bit of ACT at an inopportune moment. It was a good 30 plus feet up and took us a couple hours to get down thanks to my son's airplane retrieval system. No damage but a badly bruised ego!
Just my first post here and thought I'd start off with a confession and letting you know I feel you pain!
Dan
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Post by renard80 on Jul 4, 2011 22:30:37 GMT 1
Welcome aboard, Dan - another victim of that strange tree magnetism which is built into the SC. ;D
Just a tip: If you don't already know, there is a wealth of advice here and elsewhere that because ACT actually causes more crashes than it prevents, you are recommended to turn it off. Better still, disconnect it permanently.
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dano57
Flying officer
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Post by dano57 on Jul 5, 2011 2:21:57 GMT 1
Roger that Renard! It (ACT) will be disconnected before the next flight :-)
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Post by cptrack08 on Jul 5, 2011 5:20:21 GMT 1
Ohh wow 5 weeks is crazy long. I would drive myself crazy just knowing my plane is up there and don't have it down safe and checked for damage. I was lucky mine was about 10-15 feet up and was able to just stand on top of a 6 foot ladder. Also renard80 that is an awesome idea and something I never thought of. Thank You! When I was looking for my plane I actually didn't know where it was because I lost sight of it at the end of the flight. I was getting extremely nervous it was in somebody's yard and i wasn't getting it back until I found it in the tree. Lastly renard I will disconnect ACT in the future, but was wondering does it change performance at all as well? Thank you
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Post by renard80 on Jul 5, 2011 23:53:30 GMT 1
I will disconnect ACT in the future, but was wondering does it change performance at all as well? It is said that even with ACT disconnected, if you activate the ACT switch on your transmitter the plane will respond more slowly. This, some say, is easier for a newbie. My opinion is that I want the plane to respond instantly to my commands. It is no fun to see her heading towards an obstacle and not responding quickly enough when you try to turn her away. Just my preference, though. Give it a try and decide what suits you best. |
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Post by cptrack08 on Jul 6, 2011 4:59:09 GMT 1
Ohh ok that's good to know and will definitely test it out.
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Post by cptrack08 on Jul 12, 2011 4:33:24 GMT 1
Hey guys, got my new rx/esc installed but it makes a buzzing type sound. Any reason for this?
Update: bigger problem! Tested throttle, and it would cut out at 3/4 and up. Tried slowly working the throttle up and by the time I reached about 3/4 throttle smoke was pouring out from the motor and I thought the receiver as well. Obviously I cut throttle right away and elevators and rudders still work so seems like receiver was ok. Guess my crash into the tree trashed my motor as well?
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