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Many of us today are buying helicopters
that do NOT have a flybar. These are becoming more and more
popular due to the introduction of relatively low cost electronic
controllers (known as 3G controllers because they use 3 separate gyros
to control how the flybarless system works)
These 3G controllers are indeed very
sophisticated in what they can do, and you might want to think of them
as being very similar to the computer systems used on modern aircraft to
handle their "fly by wire" control systems. Although the
3G is nothing like as complex, a radio controlled flybarless helicopter
will basically not fly unless you have one of these control units fitted
to handle the rapid control changes that only such electronics can do.
The downside of this is that because the
3G units are sophisticated, they are necessarily somewhat complex to set
up, and do require that you have a reasonable level of understanding of
things like "piro rates", "cyclic pitch control
maximums", "Servo end points", "Sub Trims" and
various other terms that you quite reasonably do not understand at all.
That is where I come in, as I have been
building and setting up helicopters of all sorts for a great many years
now, and have of course moved with the times as the various newer
technologies have arrived. I have worked with most of the better
known 3G control systems such as Align 3G and now 3SX, the BeastX
system, the Tarot ZYX system, and the CopterX 3G system.
A thing to remember when pricing these 3G
flybarless systems is that SOME of them, Spektrum in particular, provide
various ways, including simply attaching a satellite receiver to the 3G
controller itself, so you do not have to also buy a 6 channel receiver.
Shown below are the Spektrum AR72008X,
which is a hybrid of a Spektrum 7 channel Receiver plus a built in
BeastX system, and on the right the Tarot ZYX system control box.
To configure any of these you will need
to know exactly how to adjust your helicopter mechanically as well as
electronically, and therefore understand many of the terms that are
bandied around these days. In the same way as many other complex
systems, if you get it wrong, there is a very good chance that it will
do exactly the opposite of your expectations and actually cause your
helicopter to go out of control.
If the concept of trying to do this
yourself, perhaps after a crash, is somewhat intimidating, you might
well be advised to let someone like myself take the task over and do it
for you. This will of course include test flights to ensure that
it is flying correctly.
It is hard to estimate the time involved
for any individual helicopter as it varies depending on what changes
need to be made mechanically, but on average my charge to sort this out
for you will not exceed £35
- If you have a flybarless helicopter you CANNOT also fit any form of
auto pilot system such as Alien Command, but if you really want an auto
pilot as well, then the newest Helicommand systems (3SX etc) do provide
BOTH 3G control AND auto pilot features, but at a pretty high cost.
So why not give me a call on 07990
57 81 48 between 10 and 4pm,
or email me at firstname.lastname@example.org
and I will be very happy to talk all of the options through with
ensure that you select the most suitable system for your needs and