Bought this heli along with along a Syma S107 this one arrived first. I bought it after seeing a video on youtube of these things flying around a mini heli obstacle course with precision and amazing control. Don't know if I got one from the bottom of the barrel or what, but there is no way I could fly this thing they way they showed in the video for one reason, throttle response.
After a full charge this heli is wild and unpredictable, slight up movement on the throttle and it begins a quick ascend. let off a touch to slow it's upward motion and your descending at a alarming rate, quickly act and you hit the ceiling. It's a constant fight to make it hold an desired altitude until the battery begins to lose a little of it's charge then maintaining a hover becomes a little more of a possibility.
In high speed mode if you press forward it gains quite a bit of lift from the tail rotor requiring you to reduce throttle and just before you stop forward movement you will need to blast the throttle to compensate for the loss of lift. Likewise for backward motion except the process is reversed, full blast throttle for full back control and let off the throttle before you let off backward motion completely to maintain your current attitude.
Also quality might be a issue, because mine right out of the box the B motor main bushing is slightly out of spec, I it noticed it when I began to first spin the rotors on its on power the famous worn out electric motor screeching sound was made. However it does not seem to affect it's performance other than a little noisy, then again maybe that is the reason for the inability to hold a good hover and keep a constant altitude during movement?
On the other hand if you have the need for speed this one will please you. It has plenty of power to weight ratio and the high speed mode is just that, it can get away from you quick! The slow speed is a tad bit faster than the S107 and in high speed mode it is a little more than twice as fast. Other than that the two are simular in construction,control and handling characteristics. The charge time on this one is a lot faster about 20-25 minutes and flies about the same for 8 to 10 minutes. The wall charger and extra blades are a nice added bonus.
If you want control and stability I would suggest the S107, But if your up for a challenge and like flying fast and on the edge of out of control this one would fit the bill.
All in all I still fly this one and enjoy it's challenge, but more importantly the speed is addicting and adds a little flavor to style of flying like being able to blast it around the room and bring it into a hover looks kind of like a 4ch sliding sideways through the air as it comes to a stop. Just don't expect to land and hover precisely on command and I would not recommend this for beginners. Newest NC Model Gyro 3.5 Channels Metal RC Helicopter - Free USB & AC Charger - Value of $14 - - Indoor Heli - Syma Rc Helicopter - Rc Heli - Rc Helicopter'
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