http://www.jperkinsdistribution.co.uk
7
http://www.jperkinsdistribution.co.uk
FLIGHT TRAINING GUIDE
The flying area
The flying area should be indoors in a large room
or a hall or office. In this room you should have all
doors closed as any wind can affect the movement
of the Twister CP V2.1.
Make sure the take-off floor has a smooth surface
rather than carpet which can trip up the Twister CP
V2.1 during ground handling.
Be prepared for the fact that the helicopter will
slide around on the floor until flying rpm has been
reached.
WARNING!
If you are a newcomer to R/C model helicopters, we
advise you seek assistance from an experienced
R/C model helicopter pilot. You should be aware
that the main rotor blades and tail rotor blades spin
at a high rpm and are capable of inflicting serious
damage to objects, people and animals.
You must take care when you are flying and make
sure there are no children or animals in the room
or flying area. In addition, make sure the flying area
is large enough and contains no obstacles (such as
furniture) which could be hit while you are learning
to come to terms with the flight characteristics of
your Twister CP V2.1.
STEP 1–POSITIONING
First, double check that all the controls are working
and operating correctly.
Place the model in the middle of the room.
Position yourself at least 2 metres behind the
helicopter and slightly off to one side so that you are
able to see the nose of the helicopter.
Useful tip
........................... Please note when flying
that you must always watch the nose of the
helicopter. If the nose of the helicopter yaws to the
left, you must apply right tail rotor to correct this by
pushing the tail rotor stick to the right.
STEP 2–ROTOR SPIN-UP
Watch the nose and apply just enough throttle until
the model becomes light on its skids.
Useful tip
........................... All helicopters exhibit a
degree of instability when approaching take-off due
to the side thrust generated by the tail rotor and to
turbulence generated by the main rotor blades.
These disturbing influences mainly manifest
themselves as a drift to the left before and during
take-off and a tendency to yaw left or right just prior
to take-off.
Observe whether or not the helicopter is tending to
tilt forwards or backwards.
If it tilts forward, you will need to apply rear elevator
(rear cyclic) trim to correct. And vice versa if the
Twister CP V2.1 tends to tilt backwards towards you.
Observe the helicopter about the roll axis and adjust
the trims in the same way–if it tends to roll or hop to
the left, apply a little right roll trim and vice versa.
Adjust the trims until the Twister CP V2.1 shows no
detectable forward, backwards or sideways drift
tendencies.
Useful tip
........................... When applying throttle,
you must apply it gently and in small amounts.
At this stage the Twister CP V2.1 MUST STAY ON
THE GROUND!
Too much throttle will cause the helicopter to leave
the ground and you may have difficulty in bringing it
under control quickly enough to avoid tipping it over.
WARNING!
Too much throttle applied too quickly will cause
your helicopter to leap rapidly and uncontrollably
into the air!
Never apply too much throttle too quickly.
STEP 3–GOING FOR A WALK
The helicopter should now be trimmed and you
should be in a position to start learning to 'take your
Twister CP V2.1 for a walk'. These first flights should
be made with the Twister CP V2.1 in contact with
the ground at all times.
Apply just enough power to make the helicopter
light on the skids and add a few clicks of forward
trim to tilt the rotor disc forwards.
Apply enough power so that the machine starts
to move slowly forwards. Watch for any change
of direction of the model and use the controls to
correct. If you cannot correct immediately, reduce
the throttle and try again. The aim is to travel
steadily and progressively across the floor.
Walk forwards following the helicopter across the
floor whilst using the controls to maintain slow and
accurate progress.
The 'walking technique' is the method required
to safely develop the automatic ability to apply
the right control input when needed. You must
practice this until you believe you are starting to
automatically input the control commands required
to keep the helicopter moving gently forwards along
the ground.
When you feel confident in your ability to operate
the controls correctly, proceed to the next step...
STEP 4–TAKING THE FIRST 'HOP'
If you are ready for the first 'hop' into the air you will
have spent some time mastering the skills required
to observe the attitude of your Twister CP V2.1. You
should be making the necessary control inputs
automatically and you should able to make smooth
progress across the surface of your floor.
If you cannot, please keep practicing Step 3!
The first 'hop' is a natural next step from walking
your Twister CP V2.1. Whilst walking you apply a
small amount of extra throttle to briefly raise the
helicopter off the floor and into the air for a second.
Then you should reduce throttle almost immediately