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Syma x11
Quad wont lift off.
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ralphyfsy
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August 4, 2015 - 10:15 am

Hi everyone. I am a complete newbie, so please excuse me if this is dumb question. I burned out a motor on my quad, ordered one from Amazon, and installed it today. Motor is working all props spinning. But the problem is no lift, the back of the copter lifts, but the front stay on the ground. Any help would be appreciated, really like to get it in the air.

Thanks .... Ralph

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MikeK
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August 4, 2015 - 12:48 pm
Member Since: February 1, 2014
Forum Posts: 178
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ralphyfsy said
Hi everyone. I am a complete newbie, so please excuse me if this is dumb question. I burned out a motor on my quad, ordered one from Amazon, and installed it today. Motor is working all props spinning. But the problem is no lift, the back of the copter lifts, but the front stay on the ground. Any help would be appreciated, really like to get it in the air.

Thanks .... Ralph

Hello Ralph,

I'm assuming you had to remove the blades from your quad to access the motor for replacement.  Are you aware that these blades are shaped to accommodate their direction of spin, i.e., two of them spin in a clockwise direction, the other two spin counter-clockwise?  I am not at all familiar with the Syma X11 so I don't know what the prop-spin orientation is.  But if you were not aware of this blade/balance factor you more than likely have replaced them wrong and that is the cause of your problem.

If you remove the props and set all four on a level surface you will see that two of them tilt in one direction and two tilt in the other direction.  One set are for clockwise rotation, the other set is for counter-clockwise.  With your quad facing forward, determine which motors turn clockwise and which turn counter.  Guessing at which blades go where, experimentally replace them and see what happens.  If it flies you guessed right.  If not try the other way.

One clue is the blades positions are diagonally oriented, i.e., if one clockwise motor is forward/left, the other clockwise motor will be rearward right.  The other two are opposite of that (forward/right and rearward/left).

 

Let me know how you're doing.  

Mike--

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ralphyfsy
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August 4, 2015 - 2:41 pm

Mike

Spot on with your answer, I swaped the front blades "the black" and works flys like a charm again. 

Thanks a million ..... Ralph

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MikeK
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August 6, 2015 - 1:21 am
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ralphyfsy said
Mike

Spot on with your answer, I swaped the front blades "the black" and works flys like a charm again. 

Thanks a million ..... Ralph

Ralph,

Good!  

Before I checked I had no idea the X-11 is a mini-quad, which will account for the confusing "clue" in my email.  The prop arrangement in those little guys (I have a Cheerson CX10-A) is different from the larger quad, as you will see when your x5c arrives.  For your future information, if you have occasion to make repairs on the x5c be sure to mark each blade with its position before removing them, because they are all white, arranged diagonally, and the clockwise/counter-clockwise factor is critical.  

Mike--

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Syma Freak
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August 6, 2015 - 4:22 pm
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MikeK said

ralphyfsy said
Mike

Spot on with your answer, I swaped the front blades "the black" and works flys like a charm again. 

Thanks a million ..... Ralph

Ralph,

Good!  

Before I checked I had no idea the X-11 is a mini-quad, which will account for the confusing "clue" in my email.  The prop arrangement in those little guys (I have a Cheerson CX10-A) is different from the larger quad, as you will see when your x5c arrives.  For your future information, if you have occasion to make repairs on the x5c be sure to mark each blade with its position before removing them, because they are all white, arranged diagonally, and the clockwise/counter-clockwise factor is critical.  

Mike--

All a learning curve, that is our hobby, welcome to the forum and thank you for your posts and to MikeK for helping you fix your problem. This hobby attracts great people that love to help as we were all once a beginneryoda22

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