E-flite UMX Pitts S-1S BNF Basic Bedienungsanleitung PDF herunterladen (Seite 7)

Before the ﬁ rst ﬂ ights, or in the event of an

accident, make sure the ﬂ ight control surfaces

are centered. Adjust the linkages mechanically if

the control surfaces are not centered. Use of the

transmitter sub-trims may not correctly center the

aircraft control surfaces due to the mechanical

limits of linear servos.

1. Make sure the control surfaces are neutral

when the transmitter controls and trims are

centered. The transmitter sub-trim must

always be set to zero.

2. When needed, use a pair of pliers to carefully

bend the metal linkage (see illustration).

3. Make the U-shape narrower to make the

connector shorter. Make the U-shape wider

to make the linkage longer.

Centering Controls After First Flights

For best performance with AS3X, it is important

that excessive trim is not used. If the aircraft re-

quires excessive transmitter trim (4 or more clicks

of trim per channel), return the transmitter trim

to zero and adjust the linkages mechanically so

that the control surfaces are in the ﬂ ight trimmed

position.

Control Centering

Control Horn Settings

The table to the right shows the factory settings for

the control horns. Fly the aircraft at factory settings

before making changes.

After ﬂ ying, you may choose to adjust the linkage

positions for the desired control response.

CAUTION: When these are incorrectly

connected for the pilot’s skill level, unexpected

aircraft response to controls can result. This can

cause damage to the aircraft and personal injury.

Aileron Elevator Rudder

Dual Rates

To obtain the best ﬂ ight performance, we

recommend using a DSM2/DSMX radio capable

of adjustable Dual Rates. The suggested settings

shown here are the recommended starting settings.

Adjust according to the individual preferences after

the initial ﬂ ight.

NOTICE: Do not set your transmitter travel adjust

over 100%. If the TRAVEL ADJUST is set over

100%, it will not result in more control movement, it

will overdrive the servo and cause damage.

It is normal for linear servos to make signiﬁ cant

noise. The noise is not an indication of a faulty

servo.

Tip: For the ﬁ rst ﬂ ight, ﬂ y the model in low rate.

Dual Rate

High Low

Aileron 100% 70%

Elevator 100% 70%

Rudder 100% 70%

Control Direction Test

You should bind your aircraft and transmitter before

doing these tests. Move the controls on the trans-

mitter to make sure the aircraft control surfaces

move correctly and in the proper direction.

Make sure the tail linkages move freely and that

paint or decals are not adhered to them.

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