This is the receiver screen of the GUI. It shows that the Aux4 is not set properly when
compared with the manual.
This is the PID screen in the GUI. Demons live here if you muck around without
knowing what you’re doing. It comes preset!
This shows what happens in various flight modes. This has been set differently from
the manual’s recommended settings. Start with the manual’s recommendations and
only experiment when you’re comfortable with everything.
turning. These are 3-D reversible ESCs and there
is no true “off” position. At approximately 51%
throttle, the propellers will turn slowly, and if you
lower the throttle below that, they will reverse.
The Hyper 3D-400 is not a beginner’s machine! If
you are not comfortable flying a sporty quadcopter,
you may not be ready for it, but you knew that
when you bought it! I am not an expert 3-D pilot,
but I wanted to increase my skills in that arena, so
this machine looked to be the path there.
If you’re accustomed to flying helicopters, you’ll
be used to the throttle reversing at midstick—it’s
akin to a helicopter going into negative pitch at
midstick. If this is new to you, there will be some
interesting moments when you reduce throttle
below midstick. It’s something to be aware of and
you’ll get used to it after a couple of quick descents.
Again, be sure to allow the machine to sit
stationary for a bit after you plug in the flight
battery to allow full initialization of the flight
controller. If you didn’t calibrate the accelerometer
when you were connected to the laptop GUI, you’ll
want to stop right here and do that. It is imperative
that it be calibrated before your first flight. I
occasionally recalibrate mine when I’m in the shop
or after an unexpected hard return to the ground.
When I first pick mine up to a hover, I always
give it a few seconds to just feel things out. If it
drifts when it didn’t drift before, I check to ensure
the battery is in the correct location and the center
of gravity (CG) is right. This can easily affect the
handling, so check it each time. If all is okay, it’s off
to the races!
I don’t know of anything this quadcopter won’t
do as long as you’re capable of it and you set it up
properly. Inverted flight, flips, etc. are comfortable
maneuvers for this machine and what it was
designed to do.
Orientation can be a challenge, so adding colors
to two of the arms is recommended. You can also
use some of the colored propellers that are available,
but be sure they are intended for 3-D quadcopter
When Trouble Strikes
Chances are you’re not going to run into any
trouble, but because we’re dealing with a lot of
electronics and user-programmable GUI settings,
it’s possible. This machine was so new when I got it
that the people at HeliDirect were still learning how
Because there are so many things the user might
set incorrectly, it’s hard for anyone to troubleshoot
until a nice database of common errors is
established. When in doubt, reset to the defaults and
81 Model Aviation DECEMBER 2015