Fully charged, blades rotating but no lift-off, used only 3 times ( seems like there is not enough power for lift off)

i am really glad that this isnt a REAL helecopter. if you got it for christmas, you might want to return it- that is, after you verify that it is FULLY charged. this sounds like a half charged battery, that isnt spinning the bigger blades as fast as it should.

this could also be caused by any obstructions to the blades ability to rotate freely, something stuck to the blades- adding weight, bent blades, or internal belt/gear issues, regarding regulating the main blades, and the rear stabilizing blades timings.

if, before the charge, the dying battery caused the copter to crash, a blade could easily be bent, or have mud or something on it, weighing it down.

if the copter really is indestructable, i would go right back to a bad battery.

if the rechargeable battery got a memory after 4 days, i feel bad for you and your kids.

Kindly check the rotor carefuly.. there is one white/black color rotor fixed on the bar of Motor rotates whith motor and there is anoter rotator which attached parally with its i.e once motor rotator moves the another ones also moves (which connected with the rod of Blades) some times these rotators gets loose by time and makes the rotation of Blades weak. kindly connect the same tightly and check....

The batteries on the Helicopter need to be fully charged to take off.

And important: to recharge the helicopter fully it needs really good base unit batteries.

I find all this a waste so - I used a wall power supply to supply suitable power to the charging bases of these helicopters give more consistant results than using batteries.. Just make sure you are using a 9V DC wall transformer (6 1.5v batteries = 9v) and that the polarity is correct.

manual is here
http://www.brookstone.com/webassets/pdf/651307p_manual.pdf

The gap is causing you to loose power transfer. Replace the main gear and you should be back in the air. The CB180 is a fixed pitch, so as long as the blades are intact and straight, you can't do anything esle to them. Also make sure your battery is good and fully charged.

Check if s107 is fully charged.
Both rotors (lower and upper blade) should be working at full capacity. If either one of them is going slower, S107 won't lift up from the ground.
Check that gears are not too tight on each other. They should be able to rotate (leave cca 1mm space up/down between them)

I believe the Syma S018 is the same as my Yiboo UJ417.
Mine never got off the ground out after charging for an hour.
It just skitters along the ground. Must be a bad battery. Returning it if I can.

I have no soulution, mine does this as well, I just got it 3 days ago! Shure it's been in a few crashes (Learning to fly it) but it was working fine and now it wont take off!

something is jamming the heads from turning. the high pitched sound is the motor trying to turn but cant. if you are certain tht ll 3 blades turn freely inside their combs, the problem must be with he retainer that holds the blades into th frame. there are metal pieces on there that can get bent and interfere with the blades. If your retainer is damaged, you can get a new one at shaveroutlet.com

I bought this saw and then wasted some time looking for "SDS" blades (which my manual called for) until I discovered that a T-shank blade was what was required. As far as the blade change goes, I had to practice changing the blade a few times before I figured out an easy way to do it. It's not so much that the top knob has to be pulled up hard, but it must be raised approximatley 10mm or 3/8". This knob will then either loosen (counterclockwise rotation) or tighten (clockwise rotation) the blade retaining mechanism. A good indication for me when the know was high enough was when I could see numbers exposed on the inner portion of the top knob (the neck) and could also see (when I looked under the top knob) that the top knob was now engaging the "teeth" on the small white phenolic gear. It is this gear that actually loosens or tightens the blade. The blade will loosen once the knob is turned counterclockwise (3 times), but the backside (smooth side) of the blade must be pulled away from the guide wheel as it is rotated 90 degrees. To install a blade, you you simply reverse this process. An audible click will be heard when tightening, but I would certainly always double-check to make sure the blade is tight, before operation. I almost ran the jigsaw with a loose blade the first time I put a blade in the saw. I hope this helps...