Multiplex ROYALevo 7 Manuel D'utilisation page 299

ROYAL evo 7
When you operate the Spoiler con-
trol (stick /
changing flaps deflect down to act
as landing aid:
Off = Offset for flap servos (see be-
low for notes on calibrating the AI-
Spoiler
LERON+ servos for four-flap gliders.
Travel = Aileron deflection at full
spoiler extension.
If ailerons are set to deflect up
when spoilers are extended, the re-
sult is known as the Butterfly or
Crow landing system.
When the flap control (F) is oper-
ated, both camber-changing flaps
deflect up or down to alter the wing
camber in order to optimise the
wing section for thermal and speed
flying:
Travel' = Up-flap deflection, e.g.
for speed flying
Flap
Travel# = Down-flap deflection,
e.g. for thermal flying
The values should be set so that the
camber of the wing section is con-
stant over the full wingspan, i.e. co-
ordinated flap and aileron travels.
When the elevator stick is operated,
both flaps move up or down to
support the elevator response for
aerobatics ("snap-flap mixer"):
Travel' = Flap deflection when
Elevatr
down-elevator is applied
-Tr
Travel# = Flap deflection when
up-elevator is applied
The mixer can be switched on and
off at any time using the "SNAP-
FLAP" mixer switch (= I).
* appears only if the V-tail mixer is activated (= ON ).
‡
) both camber-
Page 68
Note:
Special features when calibrating the following servos:
FLAP+ and AILERON+ (input: Spoiler , parameter:
Off = OFFSET)
Glider wings with four flaps can be set up to produce
the Butterfly or Crow landing system (max. aileron up-
travel, max. flap down-travel). In this case the flap servos
in particular have a highly asymmetrical working range:
Maximum up-aileron travel is required (approx. 20°). For
landing the flaps should deflect down as far as possible
to obtain best possible braking effect (if possible > 60°).
The servo travel in the "up" direction must be greatly
reduced, unless you have installed the output arms on
the servos at an angle (mechanical differential). This
means that valuable servo travel is sacrificed, and servo
power is lost. Unnecessary gearbox play, reduced posi-
tional accuracy and increased gearbox shock loading in
a hard landing have to be accepted.