4
Need help or have any questions? Call us at 1-714-963-0329 or send us an email to service@globalhobby.net
This section describes the items you will need to purchase for your new Live Wire EP. These suggestions are not set in
stone, but they should provide you with a good starting point.
SECTION 1: OUR RECOMMENDATIONS
IMPORTANT
When choosing accessories for your Live Wire EP, such as servos, ESC, and receiver, it's very
important to take the weight of these items into consideration. Remember, the lighter the overall weight of the finished
airplane, the better the airplane will fly.
What Servos Do I Use?
The servos you use should be the lightest available, yet still have an adequate amount of torque. We suggest using servos
that weigh no more than 0.22 ounces and have a torque rating of no less than 7.0 ounces per square inch. Cirrus CS-10
servos or Hitec HS-50 servos would be a perfect choice.
What Receiver Do I Use?
The receiver should be as light as possible, preferably 1/2oz. or less. Most four-channel micro receivers would be a good
choice. If you plan on using the Hitec 555 Micro receiver, we suggest removing the case to reduce the receiver's weight.
If you do remove the case from your receiver we strongly suggest wrapping the receiver with heat-shrink material to protect
the internal components.
Special Note:
We don't suggest using short-range receivers like the Hitec Feather or Cirrus MRX-4. The range provided by these
receivers will not be long enough for you to keep control of the airplane.
Since the Live Wire EP uses two aileron servos, you can use aileron/elevator mixing and spoileron and flaperon
mixing if your transmitter features these mixing capabilities. If your transmitter does support these mixing capabilities,
you must make sure that the receiver you use supports the mixing capabilities of your transmitter. Most 5 channel
receivers don't, so you'll have to use a six or more channel receiver. If it has a case, remove it to save weight.
What Electronic Speed Control Do I Use?
The ESC you choose should be capable of handling up to 15 amps continuous current. Again, lighter is better. Your ESC
should weigh no more than 1 ounce including the wiring and switch.
Special Note:
Most 15 Amp ESCs don't support the use of more than three servos. Since the Live Wire EP uses four servos
you most likely will have to use a 20 - 30 Amp ESC. Check the specifications of the ESC you choose to make
sure it will support the use of four servos.
What Flight Battery Do I Use?
To get good flight performance you need to use the right type of flight battery. You need a flight battery that can
deliver enough voltage and be light enough to power the airplane through aerobatic maneuvers, yet still be able to handle
current draw up to approximately 8 - 10 amps. Through much testing on this power system and airframe combination, we
have found the 8 cell 800Mah 5/4AAA NiMH battery pack delivers the best performance in terms of weight, power and
duration. You certainly could use NiCD battery packs - they will give you more power, but they are heavier and offer much
less duration than NiMH batteries. Depending on how you fly the airplane, the trade-off between higher weight and less
duration may not be worth the extra power.
Special Note:
At the time of this writing, most 5/4AAA NiMH batteries cannot withstand current draw above 10 amps. If you
use our included 370 size motor, gear box and propeller, current draw will not be a problem; however, if you
experiment with larger propellers or different motors and gear boxes, the current draw may be too high for
5/4AAA NiMH batteries. If this is the case, you will need to use NiCD batteries in your airplane. NiMH
battery technology is evolving quickly, so in the future they may be compatible with high-draw power systems.
