Futaba 9VHP User Manual

Page 14

ADJUSTMENTS AND FLIGHT TECHNIQUES

IDLE UP 1.2
Idle-up 1 and 2

• Idle-Up or "High Idle" functions allow the collective pitch to be reduced while engine

speed is reduced to a lesser extent. This allows a more constant engine and main rotor
speed during hovering and certain aerobatics. Collective pitch response is improved.

• Two separate Idle-Up circuits are provided. Idle-Up 1 is usually used for normal hovering

and forward flight, while Idle-Up 2 is usually reserved for aerobatics where a high rotor

speed is needed at low (negative) pitch settings (while inverted during rolls, etc.).

• Each Idle-Up circuit has a "Point" and "Rate" adjustment. The "Point" is the T/C stick

position above which the Idle-Up has no effect. The "Rate" adjustment sets the throttle
servo response curve as the stick is moved below the Idle-Up "Point".

• The CURVE adjustment on the IDLE-UP screens can be used to refine the shape of the

response curve below the idle-Up "Point".

• The DELAY function slows the servo movement from the normal to idle-Up position

when the idle-Up Switch is turned ON. This makes the transition in engine speed less

abrupt.

Setting Method

1) Select the EDIT screen and move the cursor

to Line 2 with the

cursor key, and press

the

program key.

5) Set the Idle-Up "Point" by moving the T/C

stick to the desired position and pressing the

key. (About 50% for IDL1 and 70%

pressing the

program key, then press

the program

key

( program

key

for

Idle Up 2).

cursor to the position and press the

program key. If the IDLE-UP 1 Switch

is on, "ON" is displayed. If the IDLE-UP 1

Switch is off, "OFF" is displayed.

2) Select the THROTTLE mixing screen by

To activate the Idle-Up function, move the

for IDL2 initially.) As the T/C stick is mov-
ed above the Idle-Up Point, "OFF" is dis-
played in ( ). As the stick is moved below
the point, "ON" appears in ( ) to indicate
that the Idle-Up function is operating (if the

appropriate Idle-Up switch is ON). The Point
cannot be set above the 75% position or
below the 25% position.

Move the cursor to the POSI position with

the

cursor key.

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