E-flight Blade CX3 MD 520N RTF Owner's Manual - page 16
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The aileron stick controls roll . Moving the stick left will roll the helicopter to the left, causing the helicopter to fly to
the left .
Moving the stick to the right will roll the helicopter to the right, causing the helicopter to fly to the right .
The aileron trim can be used to help keep the helicopter from drifting left or right when in hover with no aileron stick
input . For example, if the helicopter drifts to the right when in hover, add left aileron trim until the helicopter hovers
as level as possible with no drifting to the right .
Once you have become familiar with the controls of the helicopter, you are almost ready to fly .
Mode 2
Mode 2
Mode 1
Mode 1
Helicopter Moves Left
Helicopter Moves Right
Choosing a Flying Area
When you are ready for your first flight, you will want to select a large, open area that is free of people and
obstructions . We strongly recommend an indoor area with at least 20-feet by 20-feet of floor space and
no less than 8-foot ceilings.
If you have to make your first flight outdoors, you MUST pick a time when wind conditions are
COMPLETELY CALM. Due to the relatively small size and low weight of the Blade CX3 MD 520N, even the
slightest amount of wind can cause you to lose control, or the rotor blades to strike in the air, resulting in a crash .
Flying the Blade CX3 MD 520N
Having followed the proper 3-in-1 control unit arming procedure, confirmed proper control of the servos and motors,
and found a suitable flying area, your Blade CX3 MD 520N is ready for flight .
In addition to reviewing the flight maneuvers outlined below, we recommend that you watch the Instructional
Video online at www .E-fliteRC .com to see many of these maneuvers and adjustments performed by the
Blade CX3 MD 520N and pilot .
• Slowlyraisethethrottlestick,increasingthespeedofthemainrotorbladesuntilthemodelbeginstoliftoff.
Do not raise the throttle stick too quickly as the model could climb too fast causing you to lose control or make
contact with objects above .
• Liftthemodeloffthegroundjustafewinchesandconcentrateonbalancingthethrottlestickpositionsothatthe
model holds a steady hover altitude . In some cases it may be best to make a few short “hops” to an altitude of
just a few inches until you become familiar with the control inputs and trim settings required to maintain a steady
hover and altitude .
As you will find, the Blade CX3 MD 520N requires minor throttle adjustments to maintain its altitude in hover .
Remember to keep these throttle adjustments as minimal as possible as large adjustments could result in a loss
of control and/or a possible crash .
• Whileattemptingtoestablishalow-levelhover,youcanalsochecktoseeifanytrimadjustmentsarerequiredto
help keep the Blade CX3 from constantly drifting in various directions . If you find the helicopter constantly drifts
without any directional control input, it will be best to land the model before making any adjustments to the trim
levers .
If the nose of the helicopter does not stay pointed in one direction, but is drifting to the left or right,
you will need to adjust the rudder trim.YoucanalsoadjusttheMainMotorProportionalMixifyouexperience
any difficulties in trimming nose drift with the rudder trim lever only . Please see pages 34–35 for more
information regarding Main Motor Proportional Mix Trimmer Pot adjustment .
If the helicopter is drifting forward or backward, you will need to adjust the elevator trim.
If the helicopter is drifting to the left or right, you will need to adjust the aileron trim.
Continue to make trim adjustments until the helicopter can hover at a low altitude with very little drifting and
directional control input . If the Blade CX3 MD 520N is your first helicopter model, it may be best to have the help
of an experienced helicopter pilot to trim the model for you before making your first flight .
• OnceyouhavetheBladeCX3MD520Nproperlytrimmedandmaintainingastablelow-levelhover,practice
using the rudder, elevator and aileron controls to get a feel for how the helicopter responds to control inputs .
Remember to keep the control inputs as minimal as possible to prevent over-controlling the helicopter, especially
when in hover .
• AfterbecomingcomfortablewithhoveringtheBladeCX3MD520Natlow-levelsofaltitudejustafewinchesoff
the ground, you can transition to hovering and flying the helicopter at higher altitudes of approximately three to
four feet . At these higher altitudes you will be able to get a feel for the flight characteristics of the Blade CX3
when it is flying out of “ground effect .”
• Ifatanytimeduringflightyoufeellikethehelicopterisdriftingoutofcontrol,simplyreleaseallofthecontrols
exceptforthrottle.Youwillneedtousethethrottletomaintainaltitude,butduetotheinherentstabilityofthe
coaxial counter-rotating blades, the Blade CX3 will simply return to a stable hover on its own if space allows .
• Don’tbeafraidtosetthehelicopterdownonthegroundquicklybyloweringthethrottlewhenapproachingwalls