User manual

Gyro/governor
Settings for the gyro and governor
In the basic transmitter display, use a fi nger or the
provided stylus to touch the gear icon labelled "F":
000 000
000
000
mz
000%
000%
000
000
BATT TIME 00: 01: 23
Starlet
M 2
0:01:23
NORMAL
000:00.0
000:00.0
4.2V
RX TX
RX 00.0V
Touch
The display switches to the blue function menu. Touch
the menu item "Gyro/Gover" with your fi nger or the
provided stylus.
BACK
SYSTEM
BASE
FUNCTION
Q.Link
PIT.CRV
D/R,EXP
THR.CRV
Gyr/Gover
THR.HOLD
S.Limit
Swash
S.MIX
THR.MIX
Prog.MIX
PIT>>RUDD
Trainer
Telemetry
Touch
Flight-phase-dependent settings for the gyro and
governor
If you have created Quick Links in the "Q.Link" sub-
menu, page 168, and assigned them an appropriate
name, "NORMAL" (for example) appears in green at
the top right of the display. Activate the corresponding
switches if desired to switch between Quick Links.
"Gyro suppression" line
Gyro Gain
000% Gyro Suppression
Governor RATE
Governor ACT
000%
INH
050%
RES
DEC
INC
NORMAL
Starlet
BACK
S
This option may normally not be used for
current standard gyro systems. You there-
fore need to consult your gyro setting
instructions since otherwise you may make it
impossible to fl y your helicopter. Nonetheless, this
menu was retained to satisfy all requirements and
conventions.
This option can infl uence the effect of the gyro sensor
(gyroscope) as the tail rotor control stick is moved,
assuming that a gyro system is used in which the gyro's
effect can be set by the transmitter using an additional
channel, channel 7 in the Graupner remote-control
system. The gyro suppression reduces the gyro's effect
in a linear manner in proportion to the defl ection of the
tail rotor control stick corresponding to the set value. If
the gyro has not been suppressed (at a value of 0%),
the gyro's effect remains independent of the control stick
defl ection.
The gyro's effect can however be additionally varied
smoothly (depending on the Quick Link if desired)
between a minimum and maximum using a control
assigned in the "Gyro" line in the "channel set" menu,
page 92, for example with one of the side proportional
dials SL1 or SL2. The maximum gyro gain occurs at the
full defl ection of the control and is zero at the opposite
limit.
In the program, you are of course free to restrict the
effective range to both sides by setting the control travel.
Depending on the position of the control, the gyro gain
is as follows in response to the full defl ection of the tail
rotor control stick:
"Momentary control position
minus the value of the gyro suppression".
If the gyro is in the neutral position and gyro
suppression is set, the gyro's effect is accordingly
reduced from 100% to zero with increasing tail rotor
excursion. For values between 100% and a maximum of
199%, full gyro suppression is achievable before full tail
rotor excursion (depending on the control position) (see
the fi gure after the next).
With the Graupner/JR-Gyro NEJ-120 BB, order No.
3277, both the bottom and top value are set: control 1
sets the minimum gyro gain in the bottom position of
the servo, control 2 sets the maximum effect in the top
end position of the servo. The switch between these two
values occurs approximately in the center of the servo
travel.
The gyro systems PIEZO 900, PIEZO 2000 and PIEZO
3000 contrastingly feature proportional, infi nitely
variable adjustment of gyro gain (see the following
example graphs).
As an example, the option to confi gure fl ight phase-
specifi c – and static – gyro gain gives you the
opportunity to exploit maximum stabilization for normal,
slow fl ying, but to reduce gyro gain for fast circuits and
aerobatics.
Samples of various gyro settings and confi guration
notes
• Linear gyro suppression: 0% to 199%.
With the tail rotor control stick in the center position,
the resulting gyro gain is set using the selected
control. Using a proportional rotary control, the
effect is infi nitely variable between zero ("min") and
maximum ("max"), provided that control travel is not
restricted. With full tail rotor defl ection, the effective
gyro gain is as follows:
"current control position
minus
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Helicopter model function menu - Gyro/Gover
S1006_mz-24.3.en.indd 186 17.12.2014 15:22:41