Futaba 12Z - Manual (Page 109)

109 <Functions of Model Menu (Helicopter Functions)>
Hovering pitch trim
The Hovering Pitch function trims the pitch near
the hovering point. Normally, it is used with the
KRYHULQJFRQGLWLRQ7KHKRYHULQJSLWFKFDQEH¿QH
tuned for changes in rotor speed accompanying
FKDQJHVLQWHPSHUDWXUHKXPLGLW\DQGRWKHUÀLJKW
conditions. Adjust the hovering pitch so that
rotor speed is constant. This function can be used
together with the Hovering Throttle Trim function
for more delicate operation.
Setting method
ŏ :KHQ XVLQJ RQO\ WKH KRYHULQJ QRUPDO 
FRQGLWLRQ VZLWFK WKH JURXS EXWWRQ WR WKH
VLQJOHPRGHEHIRUHVHWWLQJ
ŏ6HWWKHIXQFWLRQWR$&7>21@
ŏ 6HOHFW WKH DGMXVWPHQW NQRE 6HOHFWLRQ
H[DPSOH /'
ŏ 7KH WULP RSHUDWLRQ PRGH 0RGH  &750
1250 FDQEHVHOHFWHG
CTRM mode:
 0D[LPXP DPRXQW RI FKDQJH
QHDUFHQWHUE\FHQWHUWULPRSHUDWLRQ
N O R M m o d e :
 1 R U P D O  W U L P  S D U D O O H O
PRYHPHQW WULP  RSHUDWLRQ 7KH DGYDQWDJH
RIXVLQJWKLVPRGHLVWKDWWKHKRYHULQJSLWFK
FDQ EH DGMXVWHG ZLWKRXW FKDQJLQJ WKH
curve.
ŏ7ULPDGMXVWPHQWUDQJH 5DQJH VHWWLQJ
 :KHQWKLVYDOXHLVPDGHVPDOOWULPFDQRQO\
be used near the center.
ŏ 7KH WULP UDWH FDQ EH DGMXVWHG DQG WKH
operation direction can be changed.
High Pitch/Low Pitch Trim
High Pitch/Low Pitch Trim is the pitch servo
high side and low side trim function.
Setting method
ŏ:KHQVHWWLQJWKHDGMXVWPHQWNQREVFRPPRQ
WR DOO WKH FRQGLWLRQV VHW WKHP LQ WKH JURXS
PRGH
ŏ6HWWKHIXQFWLRQWR$&7 21 
ŏ 6HOHFW WKH DGMXVWPHQW NQREV 6HOHFWLRQ
H[DPSOH /6 KLJKVLGH 56 ORZVLGH
ŏ 7KH WULP UDWH FDQ EH DGMXVWHG DQG WKH
operation direction can be changed.
ŏ7ULPDFWVDVKLJKVLGHRUORZVLGHWULPZLWKWKH
center as the standard.