Bedienungsanleitung Graupner MX-16 HoTT (Seite 111 von 200) (Englisch)

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Program description: wing mixers – ﬁxed-wing model

ail  ﬂaps (Aileron  ﬂap)

This mixer feeds a variable amount of the aileron signal

into the ﬂap channel. When an aileron command is

given, the ﬂaps “follow” the ailerons, although usually

through a smaller angle, i. e. the mixer ratio is gener-

ally less than 100%. The adjustment range of -150%

to +150% allows the user to set up the ﬂap direction to

match that of the ailerons.

The ﬂaps should not deﬂect more than about 50% of the

(mechanical) travel of the ailerons.

Simultaneously pressing the  or  buttons of the

right-hand touch-key (CLEAR) resets an altered value

to 0%.

brak  elev (Airbrake  elevator)

Extending any form of airbrakes usually generates an

unwanted change in airspeed; this is especially marked

when a butterﬂy (crow) braking system is deployed (see

next page).

This mixer feeds a corrective signal to the elevator to

compensate for such an effect. The adjustment range is

-150% to +150%.

Simultaneously pressing the  or  buttons of the

right-hand touch-key (CLEAR) resets an altered value

to 0%.

“Usual” values are generally in single to low double

ﬁgures. It is essential to check and adjust this setting at

a safe height, and it is also important to ensure that the

model does not slow down too much when the airbrakes

are extended. The danger is that you might need to

retract the brakes again on the landing approach when

you realise the model will “land short”; if its airspeed is

too low when you retract the brakes, the model will just

fall to the ground at that point.

brak  ﬂap (Airbrake  ﬂap)

When you operate the brake function (Ch 1 stick), both

ﬂap servos move together for the landing approach; the

mixer ratio can be set to any value in the range -150% to

+150%. Down-ﬂap is usually selected.

Simultaneously pressing the  or  buttons of the

right-hand touch-key (CLEAR) resets an altered value

to 0%.

At this point you select the value which causes the ﬂaps

to deﬂect down as far as possible when the airbrake

function is deployed. However, please ensure that none

of the servos concerned strikes its mechanical end-

stops (servos stalled). To achieve this, you may need

to limit the servo travel(s) using the “Travel -/+” option,

which is found on the “RX SERVO” display page of the

“Telemetry” menu.

brak  aile (Airbrake  aileron)

When you operate the brake function, both aileron

servos move together for the landing approach; the

mixer ratio can be set to any value in the range -150%

to +150%.

Simultaneously pressing the  or  buttons of the

right-hand touch-key (CLEAR) resets an altered value

to 0%.

Note:

It can also be useful to deﬂect both ailerons up slightly

when the airbrakes are extended; in most cases this

signiﬁcantly reduces the risk of a tip-stall.

Combination of the “Brake  NN *” mixers:

“Crow” or “Butterﬂy” setting

If you have set up all three airbrake mixers for your

model, it is then possible to program a special conﬁgura-

tion known as the “crow” or “butterﬂy” arrangement for

glide path control. In the butterﬂy setting both ailerons

are deﬂected up by a moderate amount, and both ﬂaps

down by the maximum possible amount. The third mixer

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Graupner MX-16 HoTT Seite 111

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