Inverted flight, flips, and other
maneuvers are naturals for the Hyper
3D-400 and what it was designed for.
Orientation can be challenging so
adding colors to two of the arms is
The primary cause of drift during a hover is often the CG
being off because the battery wasn’t installed in exactly the
right place. Always check before beginning a flight. There
can be other causes for drift having to do with proportional-integral-derivative (PID) settings available through the GUI,
but that is an area you really don’t want to muck around in
until you understand them.
I have crashed my Hyper 3D-400 hard a few times when
I blew an attempt at some maneuver. So far, there has been
minimal damage. I did put a small crack in one arm that was
easily repaired with a bit of carbon-fiber thread and CA glue.
I once hit so hard directly on that arm that it drove it
through the mounting brackets far enough to cut a wire to
an ESC. It was a 5-minute repair with a soldering iron and I
reset the arm in the brackets. That is when I noticed that there
didn’t appear to be any threadlocker on those bolts. The other
arms did have threadlocker on them, but you might want to
ensure everything is tight before flying.
Parts are readily available and their prices are reasonable.
The manual shows full disassembly and assembly, so when
the time comes, it won’t be hard to repair. The Hyper 400 is
a 3-D machine and if you’re going to wring one out, you will
eventually crash. Being able to get parts and easily repair it is
You’re Not Ready?
The good news is you can always park it and wait until
you are, but then you did spend almost $400 and you really
want to fly it. I have found that you can tweak a lot of things
to make it slightly easier to handle if the full 3-D mode is
too much for you. You make these changes at your own risk,
I have set my throttle curve to begin at 51% and peak at
100% and that allowed me to never hit the reverse throttle
setting, but you are no longer capable of 3-D maneuvers if
you do this. It will, however, allow you to get a feel for how
responsive the machine is without worrying about reverse
throttle. After a couple of flights like this, I found it easier to go
to the full throttle range and not be surprised by it reversing at
You can also tone down the machine’s responsiveness in
the GUI by adjusting the RC rate and RC exponential in the
receiver-settings screen. Make small changes and try them,
but don’t take big swipes all at once. Always note the original
settings so you can return to them when needed.
One beauty of the Hyper 3D-400 is how user adjustable it
is. One hazard is also how user adjustable it is. Be careful when
tweaking the control board settings with the GUI.
Use the factory-recommended settings until you fully
understand what you’re doing. It is sent to you ready to fly
and those settings have been tested for full 3-D capability. If
you mess around in those settings and call the dealer for help,
you’re probably going to be out of luck because the service
representative can’t see what you’ve done. The good news is
you can always reset it.
This machine is a stone-cold, all-out 3-D monster! I’m still
honing my skills and still crashing, but this machine will make
me a better pilot. In the hands of a true 3-D expert, it is a
thing of beauty to watch. There are dozens of incredible videos
on You Tube showing the skills of some remarkable pilots.
I like the challenge that the Hyper 3D-400 has given me.
With its reparability, I’m not afraid to try things.
82 Model Aviation DECEMBER 2015