9
Flying HM 5G4
If you are new to flying model helicopters, please read and follow these instructions:
First make sure that all your batteries are fully charged, and that there is nothing around you that may create
interference for the receiver. Check that the helicopter is balanced by putting a finger on each end of the flybar at
equal distance from the centre of the rotor and see that fuselage is level, and not tilting in any direction. If it does,
then adjust it as explained in Battery Mountings and Adjustments, page 7.
Also make sure that you have ample space around and above the helicopter so you don’t risk hitting furniture,
appliances, chandeliers, ceiling, or other obstacles.
• Place the MH 5G4 on a flat, horizontal surface, preferably at floor level.
• Move the throttle stick slowly upwards, increasing the speed of the main rotor blades until the model begins to
lift off.
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 like ceiling or lamps.
• Let the model lift just a few inches off the ground, and concentrate on finding a throttle stick position where the
model is in a steady hover. Sometimes it may be best to make a few short “bunny hops” just a few inches up till
you are familiar with the control inputs and trim settings needed for a steady hover. You will find the MH 5G4
needs small throttle adjustments to maintain hover. Remember to keep the throttle adjustments as fine as
possible as large throttle movements could result in uncontrolled flight and/or a possible crash.
• While doing a low-level hover, check to see if any trim is required to stop the MH 5G4 drifting in any direction. If
you find the helicopter drifts without any directional control input, make adjustments with the trim levers. If you
are not comfortable with doing this in flight, make sure you know the drift direction, land the helicopter and make
minute trim adjustments before you try again.
- If the nose of the helicopter is drifting to the left or right, you will need to adjust the rudder trim.
- 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.
Keep doing this till you are happy with the way your MH 5G4 hovers at a low altitude with no or very little drifting,
and without any directional control input.
If the MH 5G4 is your first helicopter model, it will be an advantage to have an experienced helicopter pilot to trim
the model for you before making your first flight.
• When the MH 5G4 is properly trimmed, and can maintains a stable low-level hover, start practice using the
rudder, elevator and aileron controls to get the feel of how the helicopter responds to different control inputs.
Remember to keep the control inputs small and gentle to prevent jerking the helicopter around, especially when
in when you have it in a hover.
• As you become comfortable with hovering the MH 5G4 at low-levels just a few inches off the ground,
try hovering and flying the helicopter at altitudes of three to four feet. At these higher altitudes you will get a feel
for the flight characteristics of the MH 5G4 when it is flying out of “ground effect.”
• If at any time during flight you feel like the helicopter is drifting out of control, simply release all of the controls
except for throttle. You will need to use the throttle to maintain altitude, but due to the inherent stability of the
coaxial counter-rotating blades, the MH 5G4 will simply return to a stable hover on its own if space allows.
• If you are about to hit a wall or an obstacle, don’t be afraid to set the helicopter down on the ground quickly by
lowering the throttle to prevent main rotor blade strikes. There is optional training landing gear available for this
type of helicopters from any good hobby shop.
• NOTE: When flying the MH 5G4, be aware of the power level of the Li-Po battery pack.
If at any time the helicopter requires more throttle to maintain hover or flight, or cannot maintain hover
or fly, you must land the helicopter and shut the motors down IMMEDIATELY to prevent excessive drain
of the Li-Po battery pack.
If you continue to run the motors after noticing a loss in power it is possible to discharge the Li-Po
battery pack too much, and cause permanent damage to the pack. Too much discharge of the Li-Po
battery pack can result in shortened flight times, loss of power output, or total failure of the pack.
• Once you have gained experience and confidence in hovering and basic flying of the MH 5G4, you can try
more advanced manoeuvers like:
Forward/ Backward Flight - Pirouettes - Sliding Take Offs - Sliding Landings - Precision Landings
And Have Fun!
