Syma Forum

On... But fixing the heli is just half the fun! Lol I tried to take the spring out and HATED it. Unless you have a really high ceiling and it takes full throttle to get it up, don't take the spring out cause you will need the spring to help you control it. Helicopters for one cannot go to their full service ceiling as they will lose altitude. Full throttle can also make the engine burn out if you use it all the time, just like a car, if you go full speed you can blow the engine, if you go full throttle you can burn the engine. However, on airplanes and helicopters you need to go full speed to get up off the ground and to get high enough off the ground, then you only need to go about two and a half fourths throttle. Maybe 3/4 throttle, this also depends on if there is wind or if your landing and what not. I would go through a the way you should fly, but that would take an entire post. However, if syma freak wants me to, I will.

old iron spine, i have figured out the best fix of all, i am taking it back to my RC shop tomorrow and asking for a new one, also, i tried (before clashing of blades) the removal of the throttle spring, horrid, i recommend stretching the spring to reduce the shut off, or just keeping your thumb on it to keep it steady, LOL

also wondering about the camera, anyone know where you can get those micro spy keyrings? FASCINATED! i wanna make one!

Xavier, can you create a topic describing what your helicopter is doing and how it is crashing? Every detail will help, and we're all more than happy to get everyone's birds up into the air. 😀

God bless,
Old_Iron_Spine

If you put a paper clip or anything right through, it will stop you getting it down far enough to the point where the screw holds it in place on the shaft. Better to get a new part.

Syma S107-13 Inner Shaft-- from R/C FEVER.

Rasmus, so you were able to drill completely through the spot where the nubs broke off?  If so, why not insert a single dowel cut down to size?

I have the same issue with two of my S107s.  If it can be drilled through, something as simple as a small, straightened paper clip would do the trick.

The thing is that I have two of these and they both broke in exactly the same way. So, in my case at least, they don't break in different ways. My reconstruction is in progress. rogerly, note that you can't drill a hole right through and insert a rod because the main rotor axel goes through that area and to the top of that black piece.

I have drilled a hole through mine and inserted carbon fiber rods with a touch of glue on each side of the rotor axel. I still need to file down the glue slightly to make it swivel freely on the rods. We'll see if the fix holds up.

I would just replace the part and ease up on the throttle when flying. ( could be under parts warranty ) I have hit the walls many times and never smashed any parts. The main blades are getting a bit worse for ware though. 

Ok, I figured it out. If you look at this picture:

The 3rd from the top horizontal black bar there holds the blade assembly. Both of those protruding plastic pieces have sheared off on both of my helicopters.  A picture of the breakage:

Now I need to figure out what to do about that. Simply getting a replacement doesn't seem like it would really fix it considering how quickly and easily it broke. I need a stronger solution I think.

I believe both of them are genuine, yes. Bought from Amazon a couple of days ago and as far as I can tell from the pictures it looks ok.

This shot shows the circuitboard:

For the problem, it seems like it is because that top rotor holder is able to swivel too far. It droops to the point where the rotors overlap by a lot. The screws holding the blades on seem tight and doesn't seem to be the cause since it is the swivel thing they are attached to that is drooping. See:

For the full-size images and more of them see http://phpics.com/syma107/ and click twice on a photo to get the original huge version.