Syma Forum

did you change the plug to fit the 3.7v 650 mAh 25 c battery?  they look a different shape or at least the ones I have found do. any chance of a photo?

You have to try the f series next, they rock

Battery extension lead and a real battery with long lead and a replacement with short lead

I have a s39 it flys fairly well but the tail rotor seems underpowered. I had to make a extension lead for other brands of battery as the leads were too short. I am hoping to find a different tail rotor that will make it fly better.

edit I have just realised it has 2 power settings I will try it on level 2 soon.

Update:

I finally got around to flying the S14 aka the S39. I carefully opened it because I was a little skeptical. Well, after opening it, it looks really cool. I like being able to replace a bad battery on down the line. When I first flew it, it was very stable, much like a 107. It needed very little trim adjustment. The controller on the S14 is 2.4ghz. I didn't know what to expect from a slightly larger helicopter. Well I for one was disappointed. I live in an average sized ranch style house, which really didn't seem spacious enough to fly the S14. This thing moves a lot of air with the larger rotors. My experience was that if I got within a foot of a wall, then the air current would somehow suck the helicopter into the wall. So this limited my space to fly even more. As I flew the helicopter, I found myself wishing it was a 4 channel. Maybe then I could maneuver it better inside? Well I didn't try to fly this helicopter outside. I really have my doubts that it could handle any amount of wind. So I repackaged this helicopter and promptly returned it. I think this helicopter might be fun for someone who has access to a gymnasium or some other large building. But even so, it didn't seem all that fast, so someone who flies a lot might find it a little boring. I would like to point out that the helicopter does have two speeds, and there is a noticeable difference between the two. I would also like to point out that I also found this helicopter a little dangerous to fly inside because I have 3 small curious children who always seem to get too close to the larger scale rotors. We all know even the smaller helicopters can hurt if you get hit by a rotor. This helicopter just seems to be too big for inside the house, but to small for outside the house. I would say if you live in a smaller house, but are looking for something more challenging to fly than a 107, then buy an F3. My F3 is by far my most fun helicopter to fly, and it has the best set up. But if you do go for the F3, then be aware that you may have to adjust your servo arms out of the box.