Venom Air Corps Night Ranger 3dxl Pilot's Handbook Manual - page 14
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-10º
0º
+10º
Blade Rotation
Positive
Pitch
Negative
Pitch
14
50-100% Throttle
50- 0% Throttle
50- 0% Throttle = 0 to -10º of Pitch
50- 100% Throttle = 0 to +10º of Pitch
Inverted Flight
3D FLIGHT MODE
3D FLIGHT MODE
Push Left control stick
forward to increase
positive pitch.
Push Right control stick
forward to increase
positive pitch.
Pull Left control stick
backward to increase
negative pitch.
Pull Right control stick
backward to increase
negative pitch.
Mode II
Mode I
(Europe/Australia)
(North/South America)
NORMAL FLIGHT MODE
50-100% Throttle
50-0% Throttle
Push Right control
stick forward and
backward.
Push Left control
stick forward and
backward.
XII. 3D AEROBATIC FLYING
NOTE: You should master basic flying skills BEFORE attempting
3D aerobatic flying!
Now that you have mastered the basic flying skills, it’s time to learn
some aerobatic maneuvers. When learning to fly 3D maneuvers,
altitude is extremely important. If a problem occurs, the more altitude
you have, the more time you’ll have to correct and recover.
3D Flying Mode:
To fly aerobatic maneuvers, the helicopter must be in 3D Flight Mode.
The Flight Mode switch is located in the upper right of the radio
switches between Normal and 3D flight modes (Fig. U). In Normal
Flight Mode, the first 50% of the throttle movement is for spooling
up the rotor head. As throttle input passes the 50% mark, the CCPM
system gradually increases the pitch of the blades to create lift and
get the helicopter into the air.
NOTE: All flying in the Normal Flight
mode will occur above 50% throttle. Landing will also occur in the
Normal Flight Mode.
In the 3D Flight Mode, the throttle stick
FLI
GHT MODE
N
1
Normal Flight Mode
3D Flight Mode
Fig. U
Blade Pitch
function switches from controlling the throttle to controlling the pitch angle
of the rotor blades. The VNR 3DXL™ must be flying to switch into the
3D Flight Mode so therefore, you should only switch into the 3D Flight
Mode when the throttle input is 50% or higher. When the helicopter is in
the 3D Flight Mode, the CCPM system will hold the motor at a constant
RPM. The throttle stick is now controlling the pitch. At 50% throttle stick,
the blades will have 0% pitch (they will be flat). Increasing the throttle
input above 50% will add positive pitch to the blades and generate more
lift. Decreasing the throttle input below 50% will add negative pitch to the
blades and force the helicopter down when flying upright. Understanding
this factor is key to successful 3D flight. There are very few instances
where you will use negative pitch while flying upright but when you
are inverted, less throttle stick will create more negative pitch, which
translates into positive pitch (because you’re upside down) and the VNR
3DXL™ will gain altitude (see The Flight Envelope section on page 9).