Futaba 9VHP User Manual download pdf (Page 16)

ADJUSTMENTS AND FLIGHT TECHNIQUES

TH-HOLD

Throttle Hold

• Throttle Hold is used for practicing autorotations. When the TH-HOLD Switch is pulled,

the throttle (CH3) servo moves to a pre-set position (at or near idle) and remains there

as long as the HOLD Switch is left ON. Throttle -> Pitch mixing is disconnected, and the

collective pitch servo operates over the full range with the T/C stick.

• Manual or Auto mode can be selected. In MANUAL mode, TH-HOLD is engaged as

described above. In the AUTO mode, the TH-HOLD Switch is set to ON in preparation for

performing autorotation. The HOLD function then automatically engages when the T/C

stick is moved below a certain (adjustable) position.

• The Pitch Curve is fully-adjustable for optimum performance in autorotations (See page

28).

Setting Method

1) Select the EDIT screen and move the cursor

to Line 2 with the cursor key, then press

the program key.

2) Select the THROTTLE mixing screen by pres-

sing the program key, then select the

pro-

TH-HOLD screen by pressing the

gram key.

To activate Throttle Hold (Manual), move the

cursor to the position and press the

program key. If the THROTTLE HOLD

Switch is on at this time, "ON" is displayed.

If the THROTTLE HOLD Switch is OFF,

"OFF" is displayed.

when the HOLD Switch is turned ON and

OFF. For competition, etc., the TH-HOLD

position can be set to the engine shut off

point if desired.

6) The TH-HOLD servo position can be trimmed

with the TH-HOLD sub trimmer on the trim-

mer panel. A tone sounds at the trimmer

neutral position. The actual position set, in-

cluding the sub trim amount is displayed in

( ). Hint: With the HOLD position set at

idle with the program keys, the HOLD posi-

tion can be quickly changed to full cut-off

using the sub trimmer.

4) To

set

the

servo

position when

the

Throttle

Hold Switch is turned ON, move the cursor to

the POSI position with the cur-

sor

key.

Set

the

servo

the idling position

with

the

program key. 0% = Center

TH-HOLD AUTO MODE

1) Move the cursor to the MODE position with

the cursor key.

2) Activate the Auto Mode by pressing the

key.

(neutral) position. "+" = higher throttle.

"-" = slower throttle. Hint: With the TH-

HOLD Switch OFF, set the T/C stick and

trim

(ATL)

lever

the

safe

idle position.

Stop the engine, and adjust the TH-HOLD

position so that the servo does not move

3) ON or OFF is displayed in the ( ) at the right

side of the POSI % display.

4) To set the throttle hold ON and OFF position,

move the T/C stick to the desired position and

press the ENT program key. That position is

memorized.

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Futaba 9VHP User Manual Page 16

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