FUTABA 8UHPS Instruction Manual page 56

The Hovering Throttle function may be used to trim the throttle near hover without
affecting pitch. Its position can be memorized so that when the model memory is recalled,
the original trim is repeated by rotating the knob to its center position.
When the hovering throttle knob is turned clockwise, the engine speed rises and
when turned counterclockwise, the engine speed drops. Changes in rotor speed
caused by temperature, humidity, or other conditions can be accommodated. When
used with the hovering pitch function, more exact trimming is possible.
Working with Hovering Throttle
1. Activate Hovering Throttle Function
Press the (+) key to activate the HOV-TH function ("ON" or
"OFF" will be displayed, depending on the IDL-UP switch's
position). Use the (-) key to INHibit the mixer.)
Current trim memory
Range: -100 to +100%
(Initial value: 0%)
Current trim position
Range: -100 to +100%
(Initial value: 0%
The Hovering Pitch function may be used to trim the rotor pitch near hover without
affecting throttle. Its position can be memorized so that when the model memory is recalled,
the original trim is repeated by rotating the knob to its center position.
When the hovering pitch knob is turned clockwise, the rotor pitch increases, and when
turned counterclockwise, the rotor pitch decreases. Changes in rotor speed caused by
temperature, humidity, or other conditions can be accommodated. When used with the
hovering throttle function, more exact trimming is possible.
Using the Hovering Pitch Function
1. Activate Hovering Pitch Function
Press the (+) key to activate the HOV-PI function ("ON" or
"OFF" will be displayed, depending on the IDL-UP switch's
position). Use the (-) key to INHibit the mixer.)
Current trim memory
Range: -100 to +100%
(Initial value: 0%)
Current trim position
Range: -100 to +100%
(Initial value: 0%
2. Trim memory setting
Press the (+)/(-) keys
simultaneously to enter the current
knob location. When the hovering
throttle knob is returned to the
center, the trim returns to its
position before memorization.
Note that when memorization is
repeated with the knob offset from
center, the trim value accumulates.
• If you wish to reset to the initial value, make the trim position 0%
with the knob and memorize the trim, then return the knob to its
center position.
2. Trim memory setting
Press the (+)/(-) keys
simultaneously to enter the current
knob location. When the hovering
pitch knob is returned to the center,
the trim returns to its position before
memorization.
Note that when memorization is
repeated with the knob offset from
center, the trim value accumulates.
• If you wish to reset to the initial value, make the trim position 0%
with the knob and memorize the trim, then return the knob to its
center position.
53
These keys are used to move
To HOV-PI
through the two submenus in
function
the HOV-TH function.
To PMIX-2
function
These keys are used to move
To GYRO
through the two submenus in
function
the HOV-PI function.
To HOV-TH
function
Data input keys
Data input keys