E-flite UMX ASK-21 BNF User Manual download pdf (Page 4)

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AS3X Stabilization Delivers

Breakthrough Performance

Horizon Hobby has always made RC sport, scale

and unique aircraft with the kind of performance

experts appreciate. Now the exclusive Artificial

Stability – 3 aXis (AS3X) system helps take

performance expectations in ultra micro aircraft a

quantum leap higher.

Based on the successful use of MEMS sensor

technology within the AS3X Stabilization System

essential to Blade® ultra micro flybarless

helicopters, the specifically tuned AS3X System

for airplanes helps invisibly correct for turbulence,

torque and tip stalls when encountered.

Furthermore, the outstanding control agility delivers

an ultra smooth, locked-in feel that obeys your

every command with performance that’s natural

feeling. It’s so gratifying, in fact, that it’s as though

you’re the RC pilot of an expertly tuned, giant-scale

model.

AS3X will change the way you’ll want to fly now and

in the future. To see what we mean, go to

www.E-fliteRC.com/AS3X.

Preﬂ ight Checklist



1. Charge ﬂ ight battery.

2. Install ﬂ ight battery in aircraft

(once it has been fully charged).

3. Bind aircraft to transmitter.

4. Make sure linkages move freely.

5. Perform Control Direction Test with

transmitter.



6. Set dual rates.

7. Adjust center of gravity.

8. Perform a radio system Range Check.

9. Find a safe and open area.

10. Plan ﬂ ight for ﬂ ying ﬁ eld conditions.

Charging Warnings

The included battery charger (EFLC1000) has been

designed to safely charge the Li-Po battery.

CAUTION: All instructions and warnings must

be followed exactly. Mishandling of Li-Po batteries

can result in a ﬁ re, personal injury, and/or property

damage.

• By handling, charging or using the included Li-Po

battery, you assume all risks associated with

lithium batteries.

• If at any time the battery begins to balloon or

swell, discontinue use immediately. If charging

or discharging, discontinue and disconnect.

Continuing to use, charge or discharge a battery

that is ballooning or swelling can result in ﬁ re.

• Always store the battery at room temperature in a

dry area for best results.

• Always transport or temporarily store the battery

in a temperature range of 40–120º F (5-48º C).

Do not store battery or aircraft in a car or direct

sunlight. If stored in a hot car, the battery can be

damaged or even catch ﬁ re.

• Always charge batteries away from ﬂ ammable

materials.

• Always inspect the battery before charging and

never charge dead or damaged batteries.

• Always disconnect the battery after charging, and

let the charger cool between charges.

• Always constantly monitor the temperature of the

battery pack while charging.

• ONLY USE A CHARGER SPECIFICALLY DESIGNED

TO CHARGE LI-PO BATTERIES. Failure to charge

the battery with a compatible charger may cause

ﬁ re resulting in personal injury and/or property

damage

• Never discharge Li-Po cells to below 3V

under load.

• Never cover warning labels with hook and loop

strips.

• Never leave charging batteries unattended.

• Never charge batteries outside recommended

levels.

• Never attempt to dismantle or alter the charger.

• Never allow minors to charge battery packs.

• Never charge batteries in extremely hot or cold

places (recommended between 40–120° F or

5-48° C) or place in direct sunlight.

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E-flite UMX ASK-21 BNF User Manual Page 4

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