Elevon/ Delta Mixing; Receiver Power System Requirements - Spektrum DX5e User Manual

ELEVON/ DELTA MIXING

The DX5e offers an Elevon mix. Elevon (also called delta
wing) mixing combines the function of ailerons with the
function of the elevator to allow precise control of both roll
and pitch for delta wing aircraft. To activate the Elevon mix,
move the mix switch to the on (up) position.
Delta Wing Type Connection
AILE Servo Port
(Left Aileron)
• ELEV servo port (right aileron)
• AILE servo port (left aileron)
Note: If proper servo direction cannot be achieved
with the servo reversing switches, swap the servo input
leads from AILE to ELEV or vice versa.
SPEKTRUM DX5e • RADIO USER'S GUIDE
ELEV Servo Port
(Right Aileron)
RECEIVER POWER SYSTEM
REQUIREMENTS
With all radio installations, it is vital the onboard power
system provides adequate power without interruption to the
receiver even when the system is fully loaded (servos at
maximum flight loads). This becomes especially critical with
giant-scale models that utilize multiple high-torque/ high-
current servos. Inadequate power systems that are unable
to provide the necessary minimum voltage to the receiver
during flight loads have become the number-one cause of
in-flight failures. Some of the power system components
that affect the ability to properly deliver adequate power
include: the selected receiver battery pack (number of cells,
capacity, cell type, state of charge), switch harness, battery
leads, regulator (if used) and, unless it's a regulator, power
bus (if used).
While a Spektrum receiver's minimum operational voltage is
3.5 volts, it is highly recommended the system
be tested per the guidelines below to a minimum acceptable
voltage of 4.8 volts during ground testing. This
will provide head room to compensate for battery
discharging or if the actual flight loads are greater than the
ground test loads.
RECOMMENDED POWER SYSTEM
GUIDELINES
1. When setting up large or complex aircraft with multiple
high-torque servos, it's highly recommended that a
current and voltmeter (Hangar 9 HAN172) be used. Plug
the voltmeter in an open channel port in the receiver
and, with the system on, load the control surfaces
(apply pressure with your hand) while monitoring the
voltage at the receiver. The voltage should remain above
4.8 volts even when all servos are heavily loaded.
2. With the current meter in line with the receiver battery
lead, load the control surfaces (apply pressure
with your hand) while monitoring the current. The
maximum continuous recommended current for a
single heavy-duty servo/battery lead is three amps
while short-duration current spikes of up to five amps
are acceptable. Consequently, if your system draws
more than three amps continuous or five amps for short
durations, a single battery pack with a single switch
harness plugged into the receiver for power will be
inadequate. It will be necessary to use multiple packs
with multiple switches and multiple leads plugged into
the receiver.
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