2004 Official Ama National Model Aircraft Safety Code - Hangar 9 Edge 540 Assembly Manual

The Prototype Model Setup
All of the recommended settings in this manual
are a result of the flight testing on the prototype
Edges. There are no secrets. If you follow the
instructions and these tips, your Edge will be
set up just like mine.
Although a computer radio is not mandatory, it is
preferable in this model. I use Exponential on all
controls to soften the feel around neutral. This makes
it easier to fly smooth in precision maneuvers and
also makes it less likely to over-control in 3D mode. I
use the following expo values:
Elevator +38% Low Rate, +70% 3D Rate
Aileron +40% Low Rate, +55% 3D Rate
Rudder +25% Low Rate, +50% 3D Rate
Note that + expo values soften the neutral with JR
radios. Other brand systems may require "-"
(negative) expo values to soften the neutral.
I use a 6V battery pack for maximum speed and
torque from the servos.
The prototype Edges were tested with the
Zenoah ® GT80. Swinging a Pro Zinger
performance is unlimited and allows anything
imaginable from torque rolls just a few inches off the
ground to multiple vertical snaps.
Performance Tip: Drill eight 5/16" diameter
holes through the internal baffle plate in the
GT80 mufflers. I drilled seven through the
intake opening and one up through the
exhaust stack. Just be sure to flush out all
of the metal shavings from the mufflers.
This little 10-minute trick will add 300 rpm
to the top end.
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Computer Radio Enhancements
A computer radio will allow you to do quite a bit
of fine-tuning of the feel of the Edge, which will
make aerobatics even easier. Below are the
programming enhancements I normally use
to trim out an aerobatic model.
Rudder-to-Elevator and Rudder-to-
Aileron Mixing
This mix is used to dial out unwanted pitch and roll
caused by the rudder. The Edge has very little
coupling, and depending on your CG, may not
require any mixing. If needed, dialing it out will make
knife-edge maneuvers easier. Use a preprogrammed
mix if your radio has this feature, or if not, use a P-
mix feature. Assign rudder as the master channel and
®
elevator as the slave. Set the mixing values so when
the rudder is deflected all the way in either direction
on high rate, the elevator moves 1/4", and fine-tune
from there.
For mixing out roll coupling, make the rudder the
master channel the ailerons the slave channel.
® 24x10 the Fine-tune the mixing as necessary to eliminate any
roll coupling that may be present in flight.