Durafly Efxtra User manual

Instruction Manual

(PNF)

CONTENTS

Introduction

Specifications

Content

Required to complete model

Required for Optional FPV Canopy

Assembly

Setting up the model

EFXTRA Optional parts

Model flying precautions

Pre-flight checks

Flying the EFXTRA

EFXTRA tips

Spare parts listing

Trouble shooting

Contact

Notes

1

2

3-5

6-8

8-10

10-11

11-12

12-13

14

15

16

17

17-18

1

Thank you for purchasing this EFXTRA from Durafly. The EFXTRA have been

designed from the ground up to offer the speed (110mph) and strength normally

reserved for high end full composite models together with the agility and stability

you’d expect from any good sports model. In addition to this you of course get

the convenience, quality and uniqueness only an EPO model from Durafly can

offer. Add to this the new FPV race canopy and slope nose cone included in the box

and you get a exhilarating experience, however you choose to fly.

With a minimal part count and assembly, the EFXTRA simply clips and screws

together in less time then it takes to charge a battery. In the air the EFXTRA will

reach 110mph+ (4S) and feel exceptionally stable and controlled whilst doing so.

Yet unlike most speed machines, it also has exceptional slow speed handling and

performance. With its 4 channel control the EFXTRA is also very aerobatic.

BIG loops, fast rolls, incredibly locked in knife edges, snaps and spins, the EFXTRA

can do them all and more. Its only limit, is you!

With the EFXTRA you get a model that flies with precision and authority straight

out of the box and one that will excite and awe pilot and spectator alike!

Wingspan: 970mm (38.1")

Length: 760mm (30.2")

Flying weight: 720g (25.3oz)

Controls: 4 Channel (Throttle, Ailerons, Elevator, Rudder)

ESC: Aerostar 60amp (pre-installed)

Motor: Aerostar 3536 1780kv Brushless outrunner (pre-installed)

Prop: Grey 8x6 (3S), black 7x6.5 (4S), included.

Battery: 1800-2400mah 14.8v 4S lipo (30c min) on supplied 7x6.5

2200-2700mah 11.1v 3S lipo (30c min) on supplied 8x6

Radio system: Minimum 4 channel Rx and Tx required

INTRODUCTION:

SPECIFICATIONS:

2

1

2

3

45

6

8

7

1. Wing

2. Fuselage

3. Horizontal stabilizer

4. Propellers (4S 7x6.5 & 3S 8x6)

5. Aluminuim Spinner

In the ‘PnF’ format the EFXTRA will still require some additional electronic components to be

ready for flight. Durafly recommends the products below for optimum performance and great

value. Available at www.hobbyking.com

Zippy Compact

2700mah 3S 40C:

Part No. 9067000031-0

Turnigy Bolt

2400mah 4S 30-130C:

Part No. 9210000108-0

CONTENT:

REQUIRED TO COMPLETE MODEL:

6. Control and mounting accessories

7. Aileron covers and fusealage scratch plate

8. Slope nose cone.

9. FPV mounting tray

10. FPV canopy

10

9

Turnigy 9XR Pro 2.4GHz

Transmitter

Part No. 171000414-0

REQUIRED FOR OPTIONAL FPV CANOPY:

Quanum Elite X40-6

600mw 5.8ghz VTX:

Part No. 9704000008-0

Turnigy HS1177 CCD

FPV Camera:

Part No. 9805000001-0

Aomway 5.8ghz Clover

leaf antenna set (SMA):

Part No. 523000025-0

Orange Rx R618XL 6CH

2.4GHz Receiver:

Part No. 9171000898-0

https://hobbyking.com/en_us/6ch-dsmx-dsm2-receiver-with-long-antenna-and-cppm.html

https://hobbyking.com/en_us/turnigy-9xr-pro-radio-transmitter-mode-2-without-module.html

https://hobbyking.com/en_us/zippy-compact-2700mah-3s-40c-lipo-pack.html

https://hobbyking.com/en_us/turnigy-bolt-2400mah-4s-15-2v-65-130c-high-voltage-lipoly-pack-lihv.html

https://hobbyking.com/en_us/color-ccd-fpv-camera-1-3-sony-super-hadii-ccd.html

https://hobbyking.com/en_us/x40-6-600mw-tx-cnc-alloy-case-40-channel.html

https://hobbyking.com/en_us/aomway-5-8ghz-4-leaf-clover-antenna-set-for-tx-rx-sma-rhcp.html

3

4. Locate the aileron push rods and remove the plastic swing keepers from the rods

and insert the bent end of the rod into the top hole of the servo horn (A). Make sure the

servo arm is at 90 degree to the wing (centered) before you connect the push rod.

Re-attach the swing keepers to secure the push rods to the servo then connect the ball

link to the aileron control horn with pliers (B).

1. Locate the two horizontal tail halves and slide the left hand tail firmly into the plastic

housing at the rear of the fuselage as shown (A). Install the other half of the tail ensuring

both pieces lock into one another by pushing both firmly together from the tips and

center to ensure good firm fit (B). Use contact glue for extra security if desired.

2. Using a pair of pliers (ball link pliers ideally) connect the elevator and rudder push

rod to the control horn as shown (A). To ensure both the elevator and rudder are

neutral (with the servo’s centered) you may loosen the grub screw of the piano wire

faster until both surfaces are neutral if required. Tighten firmly when done (B).

ASSEMBLY :

A. B.

B.A.

A. B.

4

6. Connect the supplied Y-lead to the aileron servos then mount the wing to the fuselage

(A). Using the two 3x20mm bolts, screw the wing firmly to the fuselage ensure no servo

wires or ESC wires caught between the wing and fuselage as it closes (B).

7. Install your receiver in the fuselage between the servo’s as shown and connect all

servo wires. This space is tailor made for the recommended ORX receiver though any

other 4-6ch receiver can of course be used.

5. With the aileron now connected and centered, peel the paper backing off the bottom

of the aileron covers and affix each cover squarely in place as shown.

3x20mm

8. Affix the clear plastic ‘fuselage scratch plate’ to the underside of the nose of the

fuselage by removing the paper backing from the double sided tape and pressing into

position a shown. This PVC scratch plate will help protect the foam in this high impact area.

A. B.

5

Basic assembly of your EFXTRA is now complete.

Please perform a final check on all screws, bolts and compoents

ensuring all are secure and firmly in place.

9. Install the spinner back plate on to the motor shaft ensuring the notches on the rear

of the back plate align with the shafts base. Secure your supplied prop of choice (the

black 7x6.5 for 4S, or the grey 8x6 for 3S) with the prop nut and then secure the spinner

as shown below using the M3 bolt (3x10mm) provided.

3x10mm

Note: Double check your prop is balanced before installing. An unbalanced prop can

cause excess vibration and a loss in efficiency.

6

1. Before getting started, bind your receiver to your transmitter. Please refers to your

Transmitter Manual for the operation procedures. Make sure all the control sticks are

in neutral position(Rudder, elevator andailerons) and the throttle in the OFF position.

Turn on the transmitter make sure all the trims and the sub trims (For computerized

TX) are in neutral position, and then power on the ESC for the control system testing.

For safety reasons, it’s advised that this is done with the propeller removed.

2. Check all control surfaces are moving in the correct direction with the correct

stick input(see below).

SETTING UP YOUR MODEL:

Aileron Elevator Rudder

7

4. The recommended center of gravity (CG) for the EFXTRA is approximately 50-55

mm from the leading edge of the wing. With either 3 or 4S installed and pushed as far

forwards as possible, your EFXTRA should balance out at this point. To adjust the CG

weight can be added or taken away from the nose or tail respectively. Be sure to

perform the balance check with the model up side down.

3. The EFXTRA handles very well in flight but needs setting up beforehand. Please

follow the recommended settings below for good all round performance.

6-10mm

8-14mm

50-55

12-16mm

6 10

12 16

814

50-55mm

CG 50-55mm

from leading edge

8

With assembly and set-up now complete your Durafly EFXTRA

should now be ready for flight. However we recommend

you read and follow the advice given in the later

stages of this manual before flying your model.

Your EFXTRA comes with optional extra’s that really enhance the FUN factor of the

EFXTRA. An FPV canopy for mounting your own FPV epquipment in and ripping up the

race track and a slope nose cone to convert your powered EFXTRA into a silent slope

speed machine. Both are detailed below:

SLOPE NOSE CONE:

EFXTRA optional parts:

To convert your EFXTRA into a slope soaring model you simply need to remove the

prop and spinner and replace with the included plastic slope nose cone. Secure in place

with some low tack clear tape as shown. When flying, just install your lipo as you would

for the powered version and you are ready to hit the slopes.

9

FPV Canopy:

High speed FPV flying opens up a whole new level of enjoyment with the EFXTRA, add

the recommended FPV equipement to the provided FPV canopy and you have yourself

a rock solid and 100mph plus FPV racer. Follow the below assembly stages and you’ll

be expeiencing high speed FPV in no time.

1. Cut each plywood component from the framing and remove all tabs. Assemble parts

as shown below, gluing together with CA (super) glue. Before you glue the magnet in

place ensure it is the correct orientation to the receiving magnet on the fuselage.

2. Install your FPV VTX and camera (HS1177 recommended) as shown. The VTX can

be secured with cable ties if desired (A). Position the FPV canopy over the camera and

secure in place using the 2x6mm screws as shown (B). Use of hot glue is recommend

for extra security and to reduce vibration in the camera.

A. B.

2x6mm

MODEL FLYING PRECAUTIONS:

10

3. With all FPV components installed and secure on the FPV pod insert on fuselage

in place of the battery hatch and ensure the canopy fits firmly and aligns as show below.

To power your VTX, it is reccomended that you make up a power lead that can run from

the balance tab of your lipo to the power port of the VTX.

11

PRE-FLIGHT CHECKS:

Durafly’s EFXTRA delivers stunning looks and performance and go far beyond all

expectations for a EPO model of this class, especially when in the air.

Out of the box you have on offer 110mph+ performance if desired, yet very reassuring

stability and handling at low speeds too. For this reason an EFXTRA can be flown by

both intermediate and experienced pilots alike. If you are an intermediate pilot it is

suggested you start with the supplied 8X6 prop and fly on a 3S 2200-2600mah lipo. If

however you are an experienced pilot, the supplied 7X6.5 black prop running on

1800-2400mah 4S should be your set-up of choice.

Getting airborne with the EFXTRA takes very little effort. On both 3 and 4S set-ups

your EFXTRA will soon be flying from a simple yet firm underarm hand launch.

When launching, power-up the motor to 3/4 throttle and launch your EFXTRA whilst

holding in some up elevator. As soon as you release the EFXTRA, advance the throttle

to full quickly and maintain a now reduced amount of up elevator. Very soon after

launching you will see just how rock solid the EFXTRA is in flight, but keep in mind the

EFXTRA gets small quickly at full throttle!

The EFXTRA is build for speed and nothing is more impressive than a full throttle dive

from upon high right down the center of the flight line at 110mph+ followed by a full power

rolling climb. Equally as impressive is the EFXTRA’s aerobatic ability thanks to the

powerful elevator, ailerons and rudder. BIG loops, fast rolls, snaps and spins look great

and are a lot of fun. However one of the most impressive aerobatic maneuvers for the

EFXTRA is the knife edge. You will be amazed just how well the EFX performs in a knife

edge, so try it! Your EFXTRA model is also incredibly strong and handles with ease high

G maneuvers such as high speed turns rolls and snaps.

FLYING THE EFXTRA:

12

13

Happy flying and thank you for choosing Durafly.

A true testament to the EFXTRA’s design however is its slow flying ability and how well

it handles even without power. This is in no way more apparent than when landing.

Though the EFXTRA does have a relatively high glide rate, it benefits from a very low

stall speed, so you can comfortably increase elevator input at slow speeds without the

risk of a stall. With the higher demand 4S set-up, flight times are typically 4-5 minutes

with mixed throttle use. On 3S 2600mah you can expect flight times in excess of 6

minutes with varied throttle use.

What ever set-up you choose and however you prefer to fly, your EFXTRA will perform

and deliver time and time again.

14

1. If the stock set still isn’t given you enough speed, the stock motor in the EFXTRA is the

perfect motor for 6S to give you 150mph+ HOWEVER, you will need to change the prop

to a 5.5x5.5 and change the ESC for one rated at 80amps. With a 1500mah 6S, you can

expect flight times of not more than 3mins, but what a 3mins that will be!

2. It is only recommend to hand launch the EFXTRA with an under arm launch. This not to

say it is impossible to launch it over arm (it isn't), its just far more easier underarm.

3. For optimum flight performance and component longevity it is highly recommended that

you always fly with a balanced prop. This is especially true with your EFXTRA due to the

high performance nature of the model and fast speeds at which it operates. The supplied

props should be close to balanced out of the box, but it is always good to check first. If you

replace the propeller with one of your own choosing, please be sure to balance it before

hand.

4.Flight packs of a 30C constant discharge rate or higher are the only lipo’s we recommend

you use in both 3 and 4S set-ups. Not only will a higher rated pack give better performance

but it will also result in cooling running components and increased run times.

5. Because of the high current demands on of the EFXTRA, if you choose to fly your entire

flight at full throttle, it is recommended that you allow time in between flights for the motor

and ESC tocool.

6. Keep all leads within the fuselage area as tidy as possible. Tidy wires not only look better,

but also allow for easier access to all internal components, better battery installation,

increased airflow and a reduction in potential signal interference (noise).

7. Inspect the propeller and all mounting nut/bolts frequently, especially if you have suffered

a hard landing or the prop has been knocked. If the prop is in any way damaged it must be

replaced and any loose fixings must be tightened before your next flight.

Thank you for purchasing the Durafly EFXTRA We hope

you’ll have many adrenaline filled days flying and look

forward to bringing you more Durafly models in the future.

Don’t forget, spare parts are available for this model,

please see the next page for details.

EFXTRA tips:

15

Fuselage(Red): Fuselage(Blue): Fuselage(Green): Main Wing

Hatch Cover(Red): Hatch Cover(Blue): Hatch Cover(Green): Horizontal Stab:

Cowl(Red): Cowl(Blue): Cowl(Green): Spinner set:

PVC covers:

Hardware: Sticker(Red): Sticker(Blue):

9499000145-0 9499000166-0 9499000144-0 9499000146-0

9499000148-0 9499000167-0 9499000147-0 9499000027-0

9499000150-0 9499000168-0 9499000149-0 9499000151-0

9499000032-0

9499000033-0 9499000156-0 9499000165-0

EFXTRA motor:

9499000152-0

Aerostar 60a ESC:

9164000038-0

3S 8x6 prop set:

074000131

Sticker(Green):

9499000155-0

EFXTRA prop shaft

9499000153-0

Motor X mount

9499000157-0

FPV Canopy kit

9499000154-0

16

Motor does

not turn

Motor not connected

1. Prop installed backwards 1. Ask Bruce.

battery.

17

www.durafly.com

www.facebook.com/durafly

www.youtube.com/hobbykinglive

www.hobbyking.com

To watch the promo for the EFXTRA, click here

To watch the product profile for the EFXTRA, click here

https://www.youtube.com/watch?v=P1IP-AqOB9I

https://www.youtube.com/watch?v=RtEXmgF0RrI

Durafly EFXTRA User manual

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