FUTABA 8J Instruction Manual page 79

GOAL of EXAMPLE:
Set up Normal Flight Condition
Throttle/Collective Pitch Curves and
Revo.
Base point: Adjust base point of throttle
curve until engine idles reliably on the
ground. Adjust base point of collective
SLWFK FXUYH WR DFKLHYH  GHJUHHV RI
blade pitch. Apply throttle until the
PRGHO VLWV µOLJKW¶ RQ LWV VNLGV $GMXVW
base point of REVO . until model does not
rotate its nose at all.
+RYHU SRLQW Adjust collective pitch
curve to +5 degrees. Ease heli into a
hover. Land/shut engine off. Adjust
throttle curves and rudder trim. Repeat
until model hovers smoothly at half
throttle. Rapidly apply throttle from 1/4
WR  VWLFN $GMXVW REVO . until the nose
does not change heading.
+LJK SRLQW Adjust collective pitch
FXUYH WR  WR  GHJUHHV )URP KRYHU
throttle up rapidly. If engine bogs,
increase the throttle curve. If engine
RYHUUHYV LQFUHDVH WKH FROOHFWLYH SLWFK
curve at points 4 or 5. Apply full throttle
ZKLOH KRYHULQJ WKHQ GHVFHQG EDFN WR D
hover. Adjust REVO . until the nose does
not change heading.
Where next?
THROTTLE CUT:
The THROTTLE-CUT IXQFWLRQ LV XVHG WR NLOO WKH HQJLQH DW WKH HQG RI D ÀLJKW 7KH HQJLQH FDQ EH VWRSSHG ZLWK RQH WRXFK RI
DQ\ VZLWFK HOLPLQDWLQJ WKH QHHG WR PRYH WKH WULP WR NLOO WKH HQJLQH DQG WKHQ UHDGMXVW SULRU WR HDFK ÀLJKW 7KH KHOLFRSWHU
STEPS:
Open the THR-CURV/NOR function.
$GMXVW WKH ¿UVW SRLQW ([ 5% .)
Open the PIT-CURV/NOR function.
$GMXVW WKH ¿UVW SRLQW ([ 8% .)
Open the REVO. /NORM function.
Adjust the high point. (Ex: 4% .)
Adjust THR-CURV/NOR .
Adjust PIT-CURV/NOR .
Adjust REVO. /NORM .
Adjust THR-CURV/NOR .
Adjust PIT-CURV/NOR .
Adjust REVO. /NORM .
GYRO function: see p. 87.
Adjust HOV-THR and HOV-PIT if needed: see p. 85.
6HWWLQJ XS 7KURWWOH +ROG VHH S 
GOVERNOR function: see p. 89.
D/R , EXP : see p. 39.
THROTTLE-CUT LQFOXGHV DQ 212)) WKURWWOH SRVLWLRQ QRUPDOO\ D OLWWOH DERYH
idle). You must move the THROTTLE STICK EDFN EHORZ WKH VHW SRLQW EHIRUH
the THROTTLE-CUT function can be reset, to avoid sudden engine acceleration.
)RU D GHWDLOHG H[DPSOH RI WKURWWOH FXW VHWXS VHH ACRO p. 38.
INPUTS:
for 1 second.
to THR-CURV/NOR .
to POINT-1 .
to PIT-CURV/NOR .
to POINT-1 .
to REVO. /NORM .
to MIX .
to HIGH .
Repeat above as needed.
Repeat above as needed.
Repeat above as needed.
Repeat above as needed.
Repeat above as needed.
Repeat above as needed.
79
to 5% .
to 8% .
to ON .
to 4% .