The Hubsan X4 V1 H107 Mini Quadcopter RTF 2.4GHZ
Binding takes the blink of an eye, similar to the speed at which the Helios 100 binds. As soon as I throttled up, my concerns of the X4 being overweight and possibly unstable were quickly forgotten. It is VERY stable and has quite a bit of power. The stick movements were very precise and I feel I have as much control over the X4 as I do with the 8S/Ladybird combination (which is the baseline for all of my micro quad comparisons).
I've found that sometimes the X4 will roll if fast rudder turns are executed, meaning that aileron compensation is required to keep it level. It might be due to the stock rudder settings and I will turn the rudder sensitivity down a bit later to see if that changes things, but that is how it is under the stock configuration.
The motors seem to spin at a higher RPM (Found out the painful way) compared to other quads of it's size.
I tried to flip the quad indoors and it recovers very quickly, but as I mentioned earlier, the flip sequence takes some getting used to.
I knew that the X4 was going to be small, but seeing it in real life, I'm still blown away by how tiny it is. That said though, the quad is very well made and looks amazingly sleek and streamlined.
With the battery in its compartment, the X4 quad feels quite heavy... It reminds me of the “wow, that's heavier than I thought!” feeling I get when picking up a die-cast model... . So I had immediate doubts about it's capabilities even before I plugged the battery in (but we'll get to that later).
There are 2 blue lights in front of the canopy that blink in flight and signals the bind status. Things I don't really like about the quad- the bottom of the motors are exposed and unprotected. Also, the battery compartment is very small without much wiggle room at all.
The RX itself is reachable by removing the 3 screws that secure the lower body shell to the canopy. All of the motors wires are soldered onto the board so it's quite hard to replace parts.
Transmitter and functions
The X4's transmitter is a 4 channel 2.4GHz unit that features dual rates and independently adjustable channel sensitivity. Unfortunately, the protocol Hubsan uses is proprietary, meaning that you cannot use any transmitter other than ones made by the company. That said, the X4's transmitter actually feels very comfortable to hold and the sticks feel surprisingly refined. I would compare the feel of the controls to be on par with much better, hobby grade transmitters.
Sensitivity on all channels can be independently adjusted, which I think is a very useful function especially for beginners. Dual rates can be engaged and dis-engaged by clicking the right stick.
Since there is no flip button, there is a stick sequence that needs to be done in order to flip. If you would like to do a forward flip for example, you must pull back on the elevator stick first and then push the stick to it's full forward position. This is the same for aileron AND elevator, you must first give it some opposite stick. I think this will take some practice as it doesn't feel very natural, but it does prevent accidental flips and rolls even when flying with high rates.
Lastly, I have yet to find out how I could switch from 3 axis to 6 axis mode. It is not mentioned in the manual so I'm assuming that it cannot be done. (Unless expert mode=3 axis mode and normal mode=6 axis mode, which is possible.)
•With 4 channels
•Latest 6-axis flight control system with adjustable gyro sensitivity
•Permits super stable flight
•Lightweight airframe with nice durability
•USB charging cable allows to charge by computer.
Motor (x4): Coreless Motor Frequency: 2.4GHz Battery Voltage: 3.7V Capacity: 240mAh Flight time: above 9 minutes Charging time: 30 minutes Size: 60*60mm
•1 * Hubsan X4 H107
•1 * Battery
•1 * USB charging cable
•1 * Transmitter
•1 * Use Manual
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