The Flysky GT3C is an updated version of the Flysky GT3B, they both share the same computer chip on the inside and the same general layout. This allows for the custom GT3B firmware to be also used in the Flysky GT3C, so the GT3C has all the same programmable features as a GT3B, with a custom firmware installed. However, unlike firmware, the GT3C is cosmetically different and seems to have a better build quality versus the GT3B.
To begin with, the Flysky GT3C, is much lighter than than the GT3B. This is mainly because the GT3C utilizes a 1 cell Lithium Polymer (Li-Po) battery vs the 8 AA cell battery box that the GT3B uses. This 1 cell lipo is extremely compact and makes it quick and easy to replace batteries on the go if there isn't enough time to charge them in the radio. Yes, that's right, the GT3C has built in charge circuitry so all that's needed is to plug it into a computer with the included USB cord, or use a mini-USB phone/device charger. External chargers are also available. So, being lighter in weight allows for hours of use with less fatigue and makes the radio feel more balanced. However, flysky did more than just lighten the radio to give the user a better overall experience. They also redesigned the handle to use silicone grips, which it comes with a grip for smaller hands and a grip for larger hands. It also has a bearing on the steering wheel shaft to offer smooth steering time after time again. So to recap, the major differences between the Fkysky GT3C and the GT3B, is that the GT3C is
- Powered by a 1 cell LiPo
- Built in charger
- Removable for quick and easy battery changes
- Silicone hand grips
- Comes with small and large sized grips
- Ball bearing on the steering wheel shaft
This was defiantly a step in the right direction for Flysky, but the firmware is still lacking...good news though, as mentioned above, it uses the same firmware as the GT3B which offers tons of additional functionality.
This new firmware expands the capablities of the GT3C beyond what any other Pistol Grip style radio offers. The most notable of these is that it can control up to 8 channels independently. Each channel can be controlled in a wide variety of ways through the new key-mapping menu. Methods of controlling a channel can be momentary or non momentary 2 and 3 postion switches, semi-linear control with step rates, mixing to another channel, and through a feature callled Multi-Position. What Multi-Position does is provide up to 8 ACTUAL positions that can be cycled through in any order with a rocker switch (to cycle forwards and backwards) or simply a push button switch to cycle through one way only and it'll create a loop.
Also, the Key-Mapping menu not only lets a channel be mapped to a switch/key; It also allows most of the other settings to be adjusted as well on the fly with a switch. For instance, trim, exponentials, dual rates, etc can all be adjusted with a switch while you are driving.
Another very useful feature that is usually only found in high end model radios is mixing. The new firmware has a mixing menu for Dual ESC's and 4WS. These mixes can also be controlled via any key with a wide range of control options.
For a full list indepth description of all the new features. Please see the feature tab.