Bedienungsanleitung Multiplex Acromaster 21 4215 (Seite 27 von 40) (Deutsch, Englisch, Französisch, Italienisch, Spanisch)

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Dualrate for Elevator and Ailerons 30 -50%

Expo

Ailerons 30%, Elevator 50%

27. Test-flying

Longitudinal dihedral = 0°; this is defined by the model itself.

Centre of Gravity:

Start by setting the CG within the stated range. Now to the

fine-tuning: fly straight and level at half-throttle, then roll

inverted. If you have to apply a lot of ”down” to maintain

level flight, the model is nose-heavy, and you need to move

the CG back. If the machine tends to climb when inverted,

the CG is too far rearward. The CG is correct when you

need to apply just slight down-elevator for inverted level flight.

Correcting the tracking:

First the static balancing: hold the model by the spinner and

rudder; it should balance in the normal flight attitude. If one

wing is heavy (swings down), add ballast to the lighter tip.

During the next flight apply just enough throttle for the model

to remain airborne, and trim it for normal flight. Now fly the

model inverted and check its tracking. Add ballast if

necessary after the model has landed.

Sidethrust:

Place the model in straight and level flight, allow it to fly past

you at full-throttle, then pull up into a vertical climb. In a

vertical climb the model should show no tendency to fall

away to either side. If it veers to the left, add more right

sidethrust, and vice versa. However, please note that any

wind will also tend to push the aeroplane off course.

Downthrust:

Place the model in straight and level flight, and allow it to fly

past you at full-throttle, so that you view the model from the

side. Now pull up into a vertical climb. The model should

continue to climb vertically, with no tendency to tip forward

or over onto its back. If not, adjust the downthrust to correct

the fault.

After making these corrections you may find it necessary to

repeat the procedure for fine-tuning the model’s Centre of

Gravity.

Aileron differential

Fly three of four rolls to the right at half-throttle; if the model

ends up veering off to the right, the differential needs to be

increased. If it veers to the left, the differential is already too

great, and needs to be reduced.

28. Gilding the lily - applying the decals

The kit is supplied with a multi-colour decal sheet. Cut out

the individual name placards and emblems and apply them

to the model in the positions shown in the kit box illustration,

or in an alternative arrangement which you find pleasing.

29. Safety

Safety is the First Commandment when flying any model

aircraft. Third party insurance should be considered a basic

essential. If you join a model club suitable cover will usually

be available through the organisation. It is your personal

responsibility to ensure that your insurance is adequate (i.e.

that its cover includes powered model aircraft).

Make it your job to keep your models and your radio control

system in perfect order at all times. Check the correct

charging procedure for the batteries you are using. Make

use of all sensible safety systems and precautions which

are advised for your system. An excellent source of practical

accessories is the MULTIPLEX main catalogue, as our

products are designed and manufactured exclusively by

practising modellers for other practising modellers.

Always fly with a responsible attitude. You may think that

flying low over other people’s heads is proof of your piloting

skill; others know better: the real expert does not need to

prove himself in such childish ways. Let other pilots know

that this is what you think too. Always fly in such a way that

you do not endanger yourself or others. Bear in mind that

even the best RC system in the world is subject to outside

interference. No matter how many years of accident-free

flying you have under your belt, you have no idea what will

happen in the next minute.

All of us in the MULTIPLEX team hope you have many hours

of pleasure building and flying your new model.

MULTIPLEX Modellsport

Product development and maintenance

Klaus Michler

Parts list - AcroMaster kit

Part No. Description Material Dimensions

No. off

1 1 Kit building instructions Paper, 80 g / m² A4

2 1 Decal sheet Printed adhesive film 700 x 1000 mm

3 1 L.H. fuselage shell Moulded Elapor foam Ready made

4 1 R.H. fuselage shell Moulded Elapor foam Ready made

5 1 Canopy Moulded Elapor foam Ready made

6 1 L.H. wing panel Moulded Elapor foam Ready made

7 1 R.H. wing panel Moulded Elapor foam Ready made

8 1 L.H. wing cover panel Moulded Elapor foam Ready made

9 1 R.H. wing cover panel Moulded Elapor foam Ready made

10 1 L.H. aileron Moulded Elapor foam Ready made

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