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Twister Medevac
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 Medevac.
Make sure the take-off floor has a smooth surface rather than carpet which can trip up the Twister
Medevac during ground handling.
WARNING!
You should be aware that the main 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
Medevac.
POSITIONING YOUR TWISTER MEDEVAC
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.
For example, if the nose of the helicopter yaws to the left the tail swings right, therefore you must apply
right tail rotor to correct this by pushing the yaw stick to the right.
INCREASE THROTTLE GENTLY
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 as friction
from the ground is reduced as the helicopter gets nearer to 'unsticking' from the surface.
Observe whether or not the helicopter is tending to move 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 Medevac 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 Medevac 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 Medevac 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.
WALKING THE HELICOPTER
The helicopter should now be trimmed and you should be in a position to start learning to 'take your Twister
Medevac for a walk'.
These first flights should be made with the Twister Medevac 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.
At this point, you will be able to check yaw operation. Applying left yaw will tend to swing the nose to the
