Futaba 8SGAP User Manual download pdf (Page 24)

•RUDDER AUTO DUAL RATE

•This

function

automatically

switches

rudder

D/R to ON

the

throttle

lever

moved

from

LOW

HIGH

position. This allows a smaller rudder throw for precise inputs during rolling maneuvers (at HIGH throt-

tle) and increased throw (at LOW throttle) during stall turns, taxing, etc.

Safety Switch [31]

is set to ACT.

Adjust desired Rudder travel in D/R

ON using Trimmer

[21].

Throttle

Position

Trimmer 8

can

used

set

the

throttle

stick

position

which

D/R

turned

ON and OFF. Medium slow is recommended.

SWITCH 16 FUNCTION SELECTOR

Fig.

•Transmitter control switch 16

can be used as a Rudder D/R switch

or for turning the programmable

mixing function ON and OFF.

Usage is determined by the Func-

tion Select switch [30] on the trans-

mitter back panel.

• When switch 30 is set to the P

MIX position the programmed

mixing function can be turned ON

or OFF with switch 16 . The Rud-

der D/R function will not operate

unless

Rudder

Auto

D/R

function

is used.

• When switch

[30]

is set to the

RUDD D/R position, the rudder

D/R can be turned ON or OFF with

Switch 16 . In this mode, the pro-

grammed mixing function will re-

main on regardless of Switch 16 .

RUDDER AUTO DUAL RATE SAFETY SWITCH

Fig.

•When the Rudder Auto D/R

Safety Switch 31 is set to ACT,

rudder auto D/R is ON. If Function

Select Switch [30] is also set to

RUDD D/R, the rudder D/R can

turned ON and OFF with con-

trol switch 16 but the rudder auto

D/R function will still remain acti-

vated regardless of Switch 16.

•When switch

[31]

is set to INHIB,

the rudder auto D/R function is

inoperative. If Function Select

switch [30] is in the RUDD D/R

position, the rudder D/R function

can be turned ON or OFF with con-

trol switch 16 . Trimmer 21 sets

the rudder D/R and Auto D/R

deflection angles.

•USING

VTR

(VARIABLE

TRACE RATIO)

•VTR

(Variable

Trace

Ratio)

new type

non-linear control response. It is similar to Ex-

ponential Control, but is easier to use. Aileron

will be used as an example.

•When the Aileron LINEAR/VTR Switch [3] is

in the LINEAR position, servo travel is linear

and directly proportional to the deflection of

the transmitter control stick as shown in Fig. 42.

In the VTR position (Ail. D/R Switch 14 must

also be in D/R OFF pos.), servo maximum throw

is unchanged. However servo tracking is the same

as when the rate switch is in the D/R I ON

position up to about 80% of the transmitter

stick deflection. Servo throw then abruptly in-

creases to the same deflection as when D/R

Switch 14 is in D/R OFF position. Fig. 42

shows the servo movement curve when VTR is

used. Another way to think of VTR is as "auto-

matic dual rate" that is switched off automati-

cally as the control stick is moved past the 80%

deflection point.

•

Note: Maximum

servo

travel

the

same

both

LINEAR and VTR modes and is determined by

ATV settings or maximum travel of the servo

itself if no ATV is set.

• If rate switches are set to D/R ON while in the

VTR mode, servo tracking will revert to LINEAR

and travel is set by the D/R trimmer.

Fig.

•When the dual

rate switch is

ON, operation

is the same as

when the

LINEAR-VTR

switch is set to

the LINEAR

position.

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Futaba 8SGAP User Manual Page 24

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