TRIM
submenu
:
Resets and adjusts effectiveness of digital trims.
The 7C has digital trims which are different from conventional mechanical trim sliders.
Each
T
RIM
L
EVER
is actually a two-direction switch. Each time the
T
RIM
L
EVER
is
pressed, the trim is changed a selected amount. When you hold the
T
RIM
L
EVER
, the trim
speed increases. The current trim position is graphically displayed on the start up screen.
The
TRIM
submenu includes two functions that are used to manage the trim options.
HELI
models only:
OFFSET
is available in the idle ups. If
OFFSET
is inhibited, adjustment of the
T
RIM
L
EVERS
will adjust the
trims for all flight conditions. If
OFFSET
is active, then moving the trims within any one condition will affect only that
condition. See
OFFSET
, p. 70.
Trim reset
(
CLR
): Electronically centers the trims to their default values. Note that the
SUB-TRIM
settings and the trim
STEP
rate are not reset by this command.
GOAL of EXAMPLE:
STEPS:
INPUTS:
Trim step
: Changes the rate at which the trim moves when the
T
RIM
L
EVER
is activated. It may be set from 1 to 40
units, depending on the characteristics of the aircraft. Most ordinary aircraft do well at about 2 to 10 units. Generally larger
trim steps are for models with large control throws or for first flights to ensure sufficient trim to properly correct the model.
Smaller trim steps are later used to allow very fine adjustments in flight.
GOAL of EXAMPLE:
STEPS:
INPUTS:
38
Reset trims to neutral after having
adjusted all linkages.
NOTE: This is one of several
functions for which the radio requires
confirmation to make a change.
Where next?
Open
BASIC
menu, then open
TRIM
submenu
.
Request
and confirm the reset.
Close.
for 1 second.
(If
ADVANCE
,
again.)
to
TRIM
.
for 1 second.
Beep sounds.
Adjust
SUB-TRIM
s: see p. 39.
Adjust trim rate (
STEP
): see below.
Adjust
END POINT
s: see p. 31.
Set up dual/triple rates and exponential (
D/R,EXP
): see p. 33.
Double the sensitivity (larger step) of
the
AILERON TRIM LEVERS
for a first
flight of an aerobatic model to ensure
sufficient range to trim the model for
level flight.
Where next?
Open
Choose the
STEP
you wish to change.
(Ex: aileron)
TRIM
submenu.
Adjust the size of the step. (Ex: incr. to 8)
Repeat as desired for other channels.
Close.
for 1 second.
(If
ADVANCE
,
again.)
to
TRIM
.
to 8.
to
CH1
.
to
ELEV
.
to new setting.
Repeat as needed.
Adjust sub trims: see p. 39.
Adjust
END POINT
s: see p. 31.
Set up dual/triple rates and exponential (
D/R,EXP
): see p. 33.
.