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Hey Guys, I just got an email from Hobbypartz with a Xheli add at the bottom. Xheli is selling the S107's for $14.95
![]() http://www.xheli.com/mimisihe.html Dang it, and I'm still waiting to close on the house ![]() Mike. |
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Joined Jun 2008
140 Posts
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Syma 107g package deal....!!!!
GOOD DEAL ON 2 SYMA 107`S INCLUDING EXTRA PARTS...!!!!!
http://www.rcgroups.com/forums/showthread.php?t=1755496 |
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Hi guys,
I recently purchased my first S107G about a week ago and have had lots of fun flying it! It is my first foray into the word of RC flight, and I can say that I've already been bitten pretty hard by the bug! ![]() Unfortunately, in the past day or so, I've ran into a problem with my S107G. When flying, the helicopter doesn't have the same forward/reverse speed it did. It's down to a creep now, and it takes me almost a full minute to make it across the room! The tail motor still works and spins, but I think maybe it's starting to burn out. Before I ordered a replacement motor, I wanted to see if maybe it could be something else. The tail rotor doesn't appear to be damaged and it is secure on the motor. I can't think of any other reason for this issue. Thanks for any help you can provide!
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JRomero, Welcome to RCG. I must say, you picked the best helicopter to start your addiction!
While the stock S107 doesn't hold any speed record, it certainly shouldn't take a minute to make it across the room, unless you live in an indoor gym. The most likely suspect of the problem is the tail motor. It may spin, but how fast? In the S107, the tail motor is the only thing that controls its forward and backward movements. From the sounds of it, it is not performing. Unless you have a 2nd S107, it is hard to gauge whether it is spinning strong enough. Working on the assumption that it is failing, let's first check and see if there is any debris or obstructions that prevent if from moving freely. Does the tail rotor has sufficient clearance from the motor can to move freely? Have you noticed that the tail motor is running hot? Ultimately, I believe the tail motor has to be replaced. But it helps to know the cause of its failure. Assuming the tail motor has failed. You basically have two options. First option, is to source a replacement motor and replace it. If you're go with soldering, you should trace it back to the PCB and solder in the new motor. Otherwise, you could try and splice the wires. 2nd option is to buy a new S107 all together, and save the current one for parts. The choice is up to you. |
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Hello Heli Pad, and thank you for the warm welcome! I lurked this forum for a few weeks before making the decision to purchase my S107G. I directly credit this thread with helping me make that choice!
![]() Haha, I don't live in an indoor gym, unfortunately (boy, wouldn't that make for some fun flying?!). Just a normal sized apartment. The past week or so, I've been able to zip around the apartment quite successfully, but it's just been in the past few days that I've been slowed to a crawl. As you stated, it's hard to gauge if the motor is spinning as quickly as it did. It still spins fairly quickly but I did notice that I can no longer "hear" it spin. When the motor was engaged, it used to sound like a dentist's drill. Now I no longer hear that. Nothing seems to be obstructing the tail rotor. I even took the rotor off to remove a few minuscule pet hairs that were wrapped around the shaft. There was no change in performance. I'll have to check the next time I fly the helicopter to see if the tail motor is indeed running hot. During my last flight, I stopped after a few minutes and actually removed the motor from its mount on the tail boom, and I don't recall it being hot or even remotely warm. I think I'm gonna go ahead and purchase a replacement motor. Fortunately, it's relatively inexpensive to do so! ($2.97 on Amazon, free shipping) I know some parts cost almost as much as a whole new helicopter, but this isn't the case! ![]() Thank you for your help, and I look forward to frequenting RCG regularly!
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Sounds like a plan. One other thing to check and see if you could visually detect frayed wires leading to the tail rotor, because the higher the resistance, the less juice you're gonna get from the tail. Otherwise, replacing the motor sounds like the good next step.
You did say that it was going equally bad backwards, not just going forward, right? |
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From what I can see (without tearing the helicopter apart) the wires appear fully intact with no issues in that regard. However, I just performed another flight and immediately after I checked the temperature of the tail motor. It was indeed very warm to the touch. Not so warm that you couldn't touch it, but definitely warmer than the main A and B motors. I suspect this is due to some sort of resistance within the motor, correct?
Yes, the helicopter is just as unresponsive going backwards as it is going forwards. However, just as this problem was beginning to surface, I noticed that if I put the motor in reverse for a few seconds, then went forward, the motor would work as normal until I let off. This trick only seemed to work a few times. At any rate, I just ordered the new motor (here is the Amazon link if anyone needs it), and it should be here in a few days ready to put into my helicopter! I'll definitely post an update. ![]() Thank you Heli Pad for all of the help and great advice!!!
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