E-flite EFL1275 Instruction Manual download pdf (Page 10)

Flying Tips and Repairs

Consult local laws and ordinances before choosing a ﬂ ying location.

Range Check your Radio System

Before you ﬂ y, range check the radio system. Refer to your speciﬁ c transmitter

instruction manual for range test information.

Oscillation

Once the AS3X system is active (after advancing the throttle for the ﬁ rst time),

you will normally see the control surfaces react to aircraft movement. In some

ﬂ ight conditions you may see oscillation (the aircraft rocks back and forth on

one axis due to overcontrol). If oscillation occurs, refer to the Troubleshooting

Guide for more information.

Hand Launching

For ﬁ rst ﬂ ights, we recommend you use the help of a friend to hand launch the

model. Hold the aircraft in the ﬁ nger grips on the underside of the fuselage.

Face into the wind and advance the throttle to between 50 and 75%. Give the

aircraft a ﬁ rm throw directly into the wind at a slight angle (10 degrees above

the horizon). Advance the throttle and climb out.

Flying

Always choose a wide-open space for ﬂ ying. Due to the higher speeds of this

aircraft, it does require more room to ﬂ y than average foam models. It is ideal

for you to ﬂ y at a sanctioned ﬂ ying ﬁ eld. If you are not ﬂ ying at an approved

site, always avoid ﬂ ying near houses, trees, wires and buildings. You should

also be careful to avoid ﬂ ying in areas where there are many people, such as

busy parks, schoolyards, or soccer ﬁ elds.

In ﬂ ight trimming

During your ﬁ rst ﬂ ight, trim the aircraft for level ﬂ ight at 3/4 throttle. Make

small trim adjustments with your transmitter’s trim switches to straighten the

aircraft’s ﬂ ight path. After landing, adjust the linkages mechanically to account

for trim changes and then reset the trims to neutral. Ensure the aircraft will ﬂ y

straight and level with no trim or sub-trim.

After adjusting transmitter trim in the air

or on the ground, do not touch the

control sticks for 5 seconds. This al-

lows the receiver to learn the correct

settings to optimize AS3X performance.

Failure to do so could affect ﬂ ight

performance.

Landing

For your ﬁ rst ﬂ ights with the recommended battery pack (EFLB33004S50), set

your transmitter timer or a stopwatch to 3 minutes. After three minutes, land

the aircraft. Adjust your timer for longer or shorter ﬂ ights once you have ﬂ own

the model. If at any time the motor pulses, land the aircraft immediately to

recharge the ﬂ ight battery. See the Low Voltage Cutoff (LVC) section for more

details on maximizing battery health and run time.

Land the aircraft into the wind in a soft area, such as tall grass using the rec-

ommended landing rate. Use a small amount of throttle for the initial approach.

Once the aircraft is on a proper approach angle, and the aircraft will land in

the proper area, remove all throttle, but maintain the descent. During approach

and landing, keep the wings level and the aircraft pointed into the wind. As you

approach 2-3 feet in altitude, begin your ﬂ are. Continue easing back on the

elevator to bring the aircraft down gently on the belly.

NOTICE: If a crash is imminent, reduce the throttle and

trim fully. Failure to do so could result in extra dam-

age to the airframe, as well as damage to the ESC and

motor.

NOTICE: After any impact, always ensure the receiver

is secure in the fuselage. If you replace the receiver,

install the new receiver in the same orientation as the

original receiver or damage may result.

NOTICE: Crash damage is not covered under warranty.

NOTICE: When you are ﬁ nished ﬂ ying, never leave the

aircraft in direct sunlight or in a hot, enclosed area

such as a car. Doing so can damage the aircraft.

Low Voltage Cutoff (LVC)

When a Li-Po battery is discharged below 3V per cell, it will not hold a charge.

The ESC protects the ﬂ ight battery from over-discharge using Low Voltage

Cutoff (LVC). Before the battery charge decreases too much, LVC removes

power supplied to the motor. Power to the motor pulses, showing that some

battery power is reserved for ﬂ ight control and safe landing.

Disconnect and remove the Li-Po battery from the aircraft after use to prevent

trickle discharge. Charge your Li-Po battery to about half capacity before stor-

age. During storage, make sure the battery charge does not fall below 3V

per cell. LVC does not prevent the battery from over-discharge during storage.

NOTICE: Repeated ﬂ ying to LVC will damage the battery.

Tip: Monitor your aircraft battery’s voltage before and after ﬂ ying by using a

Li-Po Cell Voltage Checker (EFLA111, sold separately).

Repairs

Thanks to the Z-Foam

™

material in this aircraft, repairs to the foam can be

made using virtually any adhesive (hot glue, regular CA, epoxy, etc). When parts

are not repairable, see the Replacement Parts List for ordering by item number.

For a listing of all replacement and optional parts, refer to the list at the end of

this manual.

NOTICE: Use of CA accelerant on your aircraft can damage paint. DO NOT

handle the aircraft until accelerant fully dries.

WARNING:

Always decrease

throttle at propeller

strike.

5 Seconds

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E-flite EFL1275 Instruction Manual Page 10

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