now! There is some soldering involved
in building the quad. I shortened all
of the motor wires and soldered them
directly to the ESCs. The ESCs were
then soldered directly to the power
distribution board (I had a small board
in my box of spare parts).
I didn’t worry about motor direction
because I could program that later
with my programming tool, otherwise I
would have to test the motor direction
and switch two of the wires around
if the motors needed to be reversed.
The motors bolt onto the frame, and
double-sided foam tape and 3M dual
lock were used to secure everything
Because there are no instructions, I
tried to come up with the best way to
mount the equipment. I decided that
I needed to make some platforms that
I could screw onto the quadcopter
frame. I have access to a nice 3-D
printer, so I was able to draw my parts
in 3-D and print them. Voilà! I had
instant parts specifically for my quad.
You could do something similar with
spare bits of carbon fiber, G10 material,
or even plywood. You just need to be
I made sure everything in the
software was correctly set. I used a
custom-built cable to operate my
flight controller via the S.Bus system
on my Futaba receiver. Satisfied that
everything was ready, I did a quick
test hover, tested directions and flight
modes, and was ready to go!
I plan to fly the quadcopter, fine-tune its settings, and then install the
FPV gear. I’ll touch on the FPV gear
installation in next month’s column, by
which time my racer will have had its
trial by fire at the Heli Extravaganza!
New O.S. Motor
I’ve been using O.S. Engines electric
motors in small electric airplanes for
a while now, and have found them to
be reliable, with plenty of power to get
the job done.
O.S. Engines has released a larger
motor for helis, the 5830-490 Kv.
Billed specifically for 700-800 F3C-size
helicopters, this 12-turn, 10-pole motor
weighs 21. 16 ounces and handles up to
50. 4 volts.
There is also a sister motor, the
5825-520 Kv version that O.S. Engines
advertises as its extreme 3-D version.
I have a specific helicopter in mind for
this 490 Kv version, and I will let you
know how it works out!
International Radio Controlled Helicopter
Ready To Fly Quads
121 Model Aviation DECEMBER 2015