Throttle curve – Tactic TTX650 6-Ch SLT Computer User Manual

Page 32

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To select a switch to turn throttle hold on or off during fl ight, set the Control fi eld to ON.

With the cursor next to CTRL, defl ect the switch that will control throttle hold. In one

position the control will be ON. Moving the switch to the opposition will turn the control OFF.

Move the cursor next to “Position” and set a percent of full throttle that the throttle channel
will defl ect to automatically when the control switch is moved to the ON position.

THROTTLE CURVE

The throttle’s output is normally linear in relation to movement

of the throttle stick. A non-linear relation between the
movement of the throttle stick and the throttle in the model
can allow for optimum control of power to the model (which
is also linked to the control of the pitch of the main rotor
blades). These non-linear control curves can be customized
for the particular model.

The idle-up function is used to optimize the throttle position

for all fl ight envelopes including aerobatic fl ight. Typically,

switch E is used as the idle-up control switch. This switch incorporates one “normal” and
two “up” functions within the three positions of the switch.

Position 1 = normal:

Used for startup, take-off, landing, and typical fl ight profi les.

Position 2 = idle-up 1:

Used for aerobatic fl ight

Position 3 = idle-up 2:

Typically used as a secondary setup for aerobatic fl ight.

Make sure all mechanical linkages are connected exactly
as specifi ed in the helicopter’s instruction manual. Make
sure the model’s full throttle position can be achieved when
the throttle stick is at maximum defl ection. The throttle trim
must be able to minimize throttle control completely when
the throttle limiter is at idle position.

Enter this function. Up to four points can be placed on the
throttle curve, as designated next to “Point” on the graph.
Points L (low) and H (high) are each limited to a fi xed range
on the curve. Points 1, 2, 3, and 4 can be set if desired with
respect to the position of the throttle stick.

As the throttle stick is advanced

note the point where the vertical
line (throttle position) intersects
the diagonal line (curve). The
coordinates of this point are shown
at the bottom. The “x” (horizontal)
coordinate is on the left, and the “y”

(vertical) coordinate on the right.

THROTTLE CURVE

Point L

RATE: 0%

CTRL:-----

EXPO: INH

0%>

0%

THROTTLE CURVE

Point L

RATE: 0%

CTRL:-----

EXPO: INH

+12%> +12%

THROTTLE CURVE

Point L

RATE: +24%

CTRL:-----

EXPO: INH

+12%> +33%

THROTTLE CURVE

Point 1

RATE:

+35%

CTRL:-----

EXPO: INH

+15%> +35%

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