Chapter 3 Heli (Helicopter); Swash Type; Swashplate - Spektrum DX18 Manuel D'utilisation

CHAPTER 3 HELI (Helicopter)

NOTICE: Refer to your helicopter, gyro and governor manuals for programming recommendations.
CAUTION:
Always do a Control Test of your model with the transmitter after programming changes
to make sure your model responds as desired.

Swash Type

Use the Swash Type Screen to select from swashplate types to
match your helicopter model. Diagrams and setup names show
on the transmitter screen to show the available setups.
Refer to www.spektrumrc.com for more information about new
DX18 firmware updates to support these options.
Normal
3 Servo 120 CCPM
3 Servo 135 CCPM
3 Servo 140 CCPM
3 Servos 90 CCPM
4 Servos 90 CCPM
2 Servos 180 CCPM
*Selection of any swash type other than Normal will activate the Swash-
plate menu option.
Select swashplate type before doing any other programming
such as Servo Setup (Travel, Sub-Trim and Reverse).
Pitch Curve
This function supports adjustment of collective pitch (up and
down movement of the swashplate, using available swashplate
servos) in 5 flight modes (see Chapter 1 section on Curves for
more information).

Swashplate

The Swashplate Screen supports adjustment of the amount and
direction of swashplate travel of the aileron, elevator and/or pitch
functions. Options vary with the Swash Type selected for a model
(see Swash Type). A value change on the Swashplate Screen
causes change to the overall travel of a function and not to
overall travel of only 1 servo or channel. For example, increasing
pitch values increases travel of all servos controlling pitch.
Swashplate values will vary among models.
You can use positive or negative Swashplate values as needed
for correct direction response of the helicopter.
1. Before making swashplate value adjustments in this screen,
make sure the servos move in response to controls in the
desired direction by "Reversing" in Servo Setup so that:
A. The aileron stick input tilts the swashplate to the right
and left.
B. The elevator stick input tilts the swashplate forward and
back.
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL
Collective Type
The collective type is used to turn on "Pull" collective for
reversed collective. Available settings are Normal and Reverse.
Some pilots prefer low pitch/low throttle to be a high throttle
stick (very uncommon however). The Collective Type allows
the throttle/pitch stick to operate in reverse and ensures trims,
curves and all other functions that are to work in reverse funtion
properly.
Electronic E-Ring
This feature prevents overdriving servos by limiting servo travel
if the sum of your programmed cyclic and pitch values exceed
servo limits.
C. The pitch/throttle stick input moves the whole
swashplate up and down.
2. Adjust each swashplate value (positive or negative) for cor-
rect overall swashplate travel.
3. Always enable Expo when using a standard rotating-arm
servo.
This Expo application delivers linear movement of the swashplate
from a standard rotary servo. When Expo is inhibited, the
standard servo's arm moves on a curved path, with decreased
swashplate movement at the extremes of the servo arm's travel.
NOTICE: Do not enable Expo when using a linear servo.
EN
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