X3 Flybarless Skyartec 250 Class 3D
Reviewed On: 2 February 2015
-Smart Helicopter That
Can Almost Fly By Itself-
And this one is upgraded to flybarless system.
This is NOT the same with the WASP X3 FlyBarred Helicopter. It has huge
differences in the system design.
Age Group 14+
-Review Updated Sunday, 15 March
Combined Together With Three Axis Gyro
Technology Plus Flybarless Design Technique, This WASP X3 Flybarless Is Now 99% Close to
The Real Helicopter And More Efficient and Stability to Fly Than Flybared Helicopter
Flybarless System Will Give Much
Different In Flying Experiences.
Beginners Will Have No Worries In Flying It For The First Time While
Advance Flyer Will Have New Experience In Flying Especially In Fly 3-D
Take A Look At These Two Pictures Below
So, what is good in flybarless? Why they remove the flybar from old
helicopter R/C system? To
Understand More About Flybarless System, Read Below Slowly.
At The Beginning
In the beginning, even real helicopters were using flybar system.
Along with the increase of technology, engineers started to implement flybarless system because
of its much more advantages compare to flybared system. So basically in real world, flybarless
system is not something new. But in helicopter R/C hobby, it is something new because the
technology was expensive for a toy hobby but not anymore. That is why a lot of helicopter r/c
hobby starts to implement this flybarless system.
So, looking back at older system, what does flybar
There will be more than 10 pages explanation if you want to know
it in detail. But let's make it short while still giving you a good sense. Flybar function is
to add stabilization to the rotor disc by automatically changing the cyclic pitch angles of the
rotor blades to help make cyclic control much more manageable. If a gust of wind hits the
helicopter and tilts it sideways for example, the flybar wants to stay in a horizontal
Since the flybar stabilization movement is transmitted to the main rotor blade mounts, it
automatically help stabilizes the helicopter by changing the pitch angles of the main rotor
blades to absorb the gust. This doesn't mean the helicopter will hover "hands off" when a gust
of wind hits it, but it does absorb the gust quick enough that a human's reaction time is now
able to correct for it.
What Replace The Flybar?
A flybarless helicopter r/c simply replaces this mechanical
device with an electronics system consisting not only gyroscopes but with additional
computational electronic control system. So the electronic stabilization systems, "virtually"
replaces the flybar. Real helicopters also use some form of flybarless stabilization
The question now is, why they change it from mechanical
stabilization system (flybar) to electronic stabilization system (flybarless)?
Removing the flybar assembly simplifies the head structure allowing wider range of cyclic pitch
without servo binding; plus cutting considerably amount of weight and slop. Head set up will be
so simple with as little as only two ball links makes blade tracking is very easy. As swash
plate inputs go directly to the main rotor grips, the cyclic pitch change is nearly
instantaneous, and allows a very agile and fast response to control inputs.
Instead of commanding how far the servo arm moves, the electronic
cyclic input tells how fast the helicopter to roll or pitch, means gives more reaction or
performances to the helicopter.
Reduction in air drag allows wider range of collective pitch
without engine / motor bog, means pilots can use lower power motor and battery pack with the
same power output or more power output and longer flying time with the same power motor and
battery pack as in flybared helicopter r/c.
Flybarless has less rational mass in the head, which means it has
possible higher rotational speeds (while maintaining safe loads), longer flight times (less
rotational energy) and tune-ability.
In Summary, Below Are The Advantages and
Disadvantages Compare to Flybared System.
Longer flight times.
Big increase in power.
Great stability in wind.
Less mechanical setting on head.
Very stable but at the same time has much more responsive
and agile and faster.
Use lower power motor and battery pack with the same
power output due to great reduction of drag from the removal of the old flybar
Less rational mass in the head, gives higher rotational
speeds (while maintaining safe loads), longer flight times (less rotational energy) and
Way better operation in windy condition, longer flight
times, more power.
Crashes better- no flybar to untangle.
Cost is the only concern. It cost more expensive compare
to flybared helicopter r/c.
And also due
to its three axis gyro technology, it gives much more stability. Just like autopilot. See below
Please take a look at this video made by
Pretty amazing isn’t it. If you have flown helicopter remote control before,
even the easy to fly toys type helicopter that have double main blade for the purpose of balancing,
it is still so impossible to take out your hand from the control stick like in the video. Every one
have flown helicopter r/c in any types, knows that.
How Can That Happen?
Why WASP X3 Skyartec can be so stable like that? Or if I may be speaking
realistically, it is 95% stable, which is not found in any old type (before the year of 2012)
The answer is that WASP X3 Skyartec is adapting 3 axes gyro technology that
will give 360 degree correction. The system act as a Auto Pilot, it will only steps in when you
don't give any input, but once you move your hands on the control sticks again, the system will
de-activate and let you take charge again, pretty amazing, isn't it? Just like a real Auto Pilot
when you need a break.
When you play the helicopter outdoor, there is wind, right? When wind pass thru
the helicopter, it will push the helicopter and making it up side down, you will need to adjust the
control sticks constantly to prevent this from happening. Thanks to the 3-Axis gyro, it can work
all around 360 degree corrections and it will automatically correct the cyclic servos and keeps the
helicopter always in horizontal mode.
But note that the system is not hooked up with the throttle; the altitude of the
helicopter is still in your control.
Also please note that although the system gives you 95% stability compare to 0%
stability where you need to do it manually in old type of helicopter, you still need to take safety
precaution and do a little adjustment.