TRIM submenu: resets and adjusts effectiveness of digital trims.
The 7CA has digital trims which are different from conventional mechanical trim sliders.
Each TRIM LEVER is actually a two-direction switch. Each time the TRIM LEVER is
pressed, the trim is changed a selected amount. When you hold the TRIM LEVER, 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 TRIM LEVERS 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 TRIM LEVER 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:
39
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-TRIMs: see p. 40.
Adjust trim rate (STEP): see below.
Adjust END POINTs: see p. 32.
Set up dual/triple rates and exponential (D/R,EXP): see p. 34.
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.tonew setting.
Repeat as needed.
Adjust sub trims: see p. 40.
Adjust END POINTs: see p. 32.
Set up dual/triple rates and exponential (D/R,EXP): see p. 34.
.
