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60 menu descriptions - helicopter – HITEC Eclipse 7 Pro User Manual

Page 62

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60

Menu Descriptions - Helicopter

Setting Up The Throttle Curve

1. Press one of the Up Down Edit buttons until the

THCV window appears. The default is for a linear curve,

a straight line from 0 to 100% passing through 50% at

hover (center, point 3).

2. Be sure you’re in the desired flight condition by moving

the Flt. Mode and Flt. Cond switches to their proper

position. Remember, you can

input separate, independent

throttle curve settings for each

flight condition (except for

ST3, throttle hold)! Also, be

sure to center the hovering

throttle knob.

3. You begin at set point #1,

idle. Numeral 1 should be flashing in the display, and a value

of

0% should be shown. Press the Data +Increase or

-Decrease key to change the setting to your desired

value.

4. When you’re finished

with Point 1, move to the

next point with the Cursor

Right key. The numeral 2 should

be flashing that

indicates you are setting the

value for

Point 2. Note that the function is inhibited (Inh) to start

with. If you leave it, you get a straight line from points 1

to 3. Otherwise, you can change this setting with the

Data +Increase or -Decrease keys. You can inhibit

THCV point 2 or 4 by pressing the clear key.

5. Repeat this procedure for Points 3, 4, and 5 by

pressing the Cursor Right key, then adjusting as

desired with the Data +Increase or -Decrease keys.

6. When you’ve completed the settings for the first flight

condition (NOR), test fly your model. When you’re

satisfied with the settings, use them as a basis for the

other flight conditions. Flip the switches as necessary to

get into the new conditions, verify on the display that you

are in the desired flight condition, then set all the five

points in by going through the steps given previously

PTCV - Pitch Curve

Like the throttle curve described

above, pitch curves are

tied to the position of the collec-

tive stick, and are

specified at five points labeled 1

through 5 below. Setup

instructions are the same as those for throttle curve,

except that you may also input a curve for the throttle

hold/ST3 flight condition. You can get a linear response

by making the five settings line up as shown above. But

if you want another shape, you’re free to do it. You can

“flatten out” or “soften” the curve around hover,

which is handy for making the control less sensitive there.

Inputting The Pitch Curve Values

1. Press one of the Up Down Edit buttons until the

PTCV window appears. The default is for a linear curve,

The Throttle Hold function moves the engine throttle

servo to a selected position near idle, and disengages it

from the throttle stick. It is commonly used during autorotation,

and activated with the Flt. Cond. switch on the

right rear of the transmitter. You can set the throttle position

to be held over a -50 to +50% range centered about

the throttle idle position. Activating throttle hold also

disables revolution mixing (RVMX).

Setting Up Throttle Hold

1. Press one of the Up Down Edit buttons until the H0LD

window appears. The default is for the function to be

inhibited. To activate the throttle hold function, press the

Data -Decrease key. This will cause the INH display

to change to a -4% value with an ON or OFF display,

depending on the Flt. Cond. switch’s position.

2. Now you can adjust the throt-

tle hold position with the Data

+Increase or -Decrease keys,

anywhere between -50 and

+50% (To inhibit this feature,

press the Active/Inhibit (Clear)

key).

3. Check that your throttle goes to the desired hold position

by flipping the Flt. Cond. switch one way and the other.

Adjust the number as needed. Be sure to choose an engine

speed that’s fast enough to keep the engine from accidentally

quitting but slow enough to not engage the main rotor clutch.

THCV - Throttle Curve

The throttle & pitch curves are tied to the position of the

collective stick, and are specified at five points labeled 1

through 5 below. These “curves” are really straight lines

connecting the settings at the five points, and are defined

by assigning servo movement percentages to five

positions of the left stick: lowest = Point 1, the 1/4-up stick

position = Point 2, half-stick = Point 3, 3/4 position = Point

4, and top position = Point 5. With the numbers as input

as shown, the servo would move 50% of full travel to one

side at low collective stick position, and 50% of full travel

to the other side at high stick position. You can get a

linear response by making the five settings line up as

shown above. But if you want another shape, you’re free

to do it. You can “flatten out” or “soften” the curve around

hover as shown here. This is handy for making the

control less sensitive around hover.

Flashing

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