User manual

72
Winged models
Winged models
Convenient support is provided for up to four aileron
servos and four flap servos on normal models or, for
V-tail and flying wing/delta models, up to two aileron/
elevator servos plus four flap servos.
The majority of motorized and glider models belong
to the tail unit type “normal” and are equipped with
one servo each for elevator, rudder and ailerons
in addition to a motor throttle or electronic speed
controller (or for brake flaps in the case of a glider
model). Beyond this, tail unit type “2 HR Sv 3+8” per-
mits the connection of two elevator servos to receiver
outputs 3 and 8.
“V-tail” is to be selected from the »Model type« menu
if the model has a V-tail instead of a “normal” tail. This
V-tail option provides coupled control functions for
elevator and rudder such that both tail flaps – each
controlled by a separate servo – are able to handle
both elevator and rudder functionality.
For delta and flying wing aircraft models, aileron and
elevator functionality is affected by way of a common
rudder flap on the trailing edge of each side (right and
left) of the wing. The program contains appropriate
mixer functions for both servos.
If ailerons, and conditionally the flaps, are each actu-
ated with two separate servos then settings can be
made for differentiated control of all aileron and flap
pairs in the »Wing mixers« menu, i. e. settings for
downward rudder throw independent of upward throw.
And finally, the ideal method of controlling flap posi-
tions is to use one of the two INC/DEC transmitter
controls, which are fitted as standard on the
mc-20
HoTT transmitter only.
Alternatively, there is a phase-dependent trim func-
tion available for flaps, ailerons and elevators in the
»Phase trim« menu.
Up to 7 flight phases can be programmed into each of
the 20 respectively 24 model memory locations.
Except for C1 trim, digital trim will be stored on a
flight-phase basis. C1 trim permits easy location of a
carburetor idle setting.
Two timers are always available for flight operation.
The transmitter operating time expired since the last
battery charge is also displayed.
All transmitter controls and switches can be assigned
in the »Control adjust« menu to inputs 5 … 8 re-
spectively 5 … 12 with almost no restrictions.
The “Dual Rate” and “Exponential” functions for ailer-
ons, rudder and elevators are separately programma-
ble and each are convertible between the two varia-
tions on a specific flight-phase basis.
In addition to eight freely assignable linear mixers,
four curve mixers (»Free mixers« menu) and four
dual mixers (»Dual mixers« – available as standard
on the
mc-20 HoTT transmitter only; can be un-
locked on the mc-16 HoTT as an extra-cost option),
flight-phase specific six-point curves are available for
control channel 1 (throttle / brake); see »Channel 1
curve« menu.
Depending on the number of wing servos, fixed-
definition mix and coupling functions can be selected
from a list in the »Wing mixers« menu.
• Multi-flap menu: control of flaps as ailerons, the in-
fluence aileron trim on flaps controlled as ailerons,
flap differentiation, flap function throw magnitude
for all aileron and flap pairs, ailerons controlled as
flaps, elevator mixer  flaps
• Brake settings: butterfly, differential reduction,
elevator curves
• aileron  rudder mixer
• flaps  elevator mixer
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