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Set-up and Trimming
The CG range for the 3DHS 75" Edge 540 can be measured at the wing root and starts at
4.75"-5.25" which closely correlates to the location of the wing tube. If you balance at the
center of the wing tube for the first flight you will be safe. There is plenty of room on the
battery tray to move your batteries to achieve this CG location. Depending on your flying
style you can adjust the position of the battery to alter the CG to accommodate your
preferences.
I highly recommend fine tuning your CG using the 45 degree line test. Fly the aircraft
from left to right or right to left, whichever direction you are more comfortable with at 3/4
to full throttle. Pull the aircraft to a 45 degree up line and establish this line and
immediately roll the aircraft inverted. Establish this line and let go of the elevator stick.
Ideally the aircraft will continue to track on that 45 degree line for several hundred feet
before slowly starting to level off. Adjust the position of your batteries to achieve this
flight condition. Once satisfied with the location of your CG scribe a mark on the battery
tray so that you can position the batteries in the same location each flight and achieve the
same feel and flight characteristics each flight.
I also highly recommend taking the time to properly set up your rates and exponential
settings. Setting up low rates for precision maneuvers and high rates for aggressive
aerobatics and 3D flight will allow you to experience the best attributes of the 3DHS Edge
or any aircraft for that matter. Here are some suggested rates to get started with. These
are the rates and exponential values I feel comfortable with. If they feel awkward to you
please adjust to your taste.
Elevator: Low rate-8-10 degrees; 15-20% Exponential
3D rate-45-55 degrees; 40-50% Exponential
Insane tumble rate: As much as possible! 65-70% Exponential
Rudder: Low rate-20 degrees; 45-50% Exponential
3D rate- As much as possible; 60-70% Exponential
Aileron: Low rate-15-20%; 40-45% Exponential
3D rate- As much as possible; 50-60% Exponential
