4
Instruction Manual
http://www.jperkinsdistribution.co.uk
http://www.jperkinsdistribution.co.uk
5
Instruction Manual
http://www.jperkinsdistribution.co.uk
6. CONTROL OPERATION CHECK
1. The helicopter swashplate should be
perfectly horizontal when viewed from
the side and horizontal with the flybar and
paddles when viewed from the side of the
helicopter. If it is not, adjust the transmitter
trims until it is.
2. Roll cyclic - Move the roll (aileron) stick to
the left. The swashplate should tilt to the
left. If it tilts the opposite way, reverse the
roll (AIL) reverse switch on the front of the
transmitter.
3. Fore and aft cyclic - Move the fore and aft
(elevator) stick forward. The swashplate
should tilt forward. If it tilts the opposite way,
reverse the fore and aft (ELE) reverse switch
on the front of the transmitter.
4. Slowly move the throttle trim forward until
the tail rotor unit rotates but the main rotor
does not.
5. Move the tail rotor stick gently to the right.
The nose of the helicopter should try to
swing right (whilst the tail swings left).
6. Throttle - Slowly push the throttle stick
forward and check that the main rotors start
to rotate. Then immediately throttle back.
Your Twister is ready for flight.
N.B. After finishing flying you should always first
disconnect the battery from the helicopter FIRST.
Then switch off the transmitter.
WARNING!
If you are new to RC helicopters we strongly
recommend you read the two following sections:
How does a helicopter fly?
Flight training tips
NEVER FLOWN R/C
HELICOPTERS?
WE RECOMMEND YOU SEEK
ADVICE FROM YOUR LOCAL
MODEL SHOP
HOW DOES A HELICOPTER FLY?
Both model and full-size helicopters are controlled
in similar ways. A helicopter must be controlled
about 4 axes simultaneously; yaw, pitch, roll and
height. Your E Sky transmitter has 2 dual-axis
precision stick units designed specifically for this
task. The transmitter is supplied in Mode II version
where the left stick controls height (climb or
descent) and tail rotor (yaw left or right). The right
stick operates the cyclic steering controls which
are used to pitch the helicopter nose up/nose down
and to roll the helicopter left or right. Note that the
included DVD depicts the use of a Mode I (throttle
right) transmitter.
Transmitter stick movements
Helicopters require relatively small control inputs of
relatively small duration. Do not move the sticks to
extreme positions. A delicate touch is required on
the sticks. The sticks should be allowed to return to
neutral almost immediately after a control input is
made. If you watch an experienced pilot hovering
his helicopter, you will see that his transmitter sticks
hardly move. This is the goal you will be working
towards in this guide.
Height control
A helicopters rotating wings - the rotor blades,
generate lift, in the same way that a propeller
generates thrust. The lift generated by the main
rotor blades increases as rotor speed rises causing
the helicopter to climb. Conversely as the main rotor
speed is reduced, the helicopter descends.
This method of helicopter height control is called
'fixed pitch'.
Height is managed using the throttle stick of your E
Sky transmitter.
Push forward to climb, pull back to descend.
Tail control
Motor-driven rotor blades generate an opposing
force (torque) that acts on the body of the
helicopter, twisting the fuselage in the opposite
direction of rotation to the main rotor blades. This
rotation needs to be balanced by thrust generated
by the tail rotor.
When a helicopter is in the hover and the torque
generated by the main rotor has been balanced
by the tail rotor, a helicopter can be yawed left or
right. If the tail rotor speed is increased, more tail
thrust is generated and the nose of the helicopter
yaws (swings) to the right. If the tail rotor speed
is decreased the nose of the helicopter will swing
to the left. This is called 'tail rotor control' and is
Check swashplate and flybar paddles
are horizontal
Flybar
paddle
Swashplate
