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Read this instruction manual fully so as to become completely familiar with the features of
this product before operating. Failure to operate this product correctly could result in
damage to the product, personal property and cause serious injury. This is a sophisticated
hobby product and is NOT a toy. It must always be operated with caution, common sense
and some basic mechanical ability. This manual provides instructions as the the assembly,
safe operation and maintainence of this hobby product. It is highly reccommneded that you
follow and read fully the instructions and warnings stated in this manual including safety,
assembly, set-up and flying guidelines in order to operate this product correctly and avoid
damage or serious injury.
As the user of this product you and you alone are responsible for operating it in a manner
that does not endanger yourself and others around you or result in damage to the product or
property of others. This product is operated via a radio controlled system that in some cases
can be subject to interference from sources outside of your control. Interference may result
in a momentary loss of control so it is always recommended that this product be used in a
suitably open outdoors space.
- This is a radio controlled flying model and as such must always be flown with caution and
care. This is not a toy.
Ugly Stick Brief
- The
- Alway exersie great caution when using the recommended battery to power this product.
For full safety notes and operating procedures, please see information provided by your
battery supplier.
- Take great care when connecting/disconnecting the battery. See battery supplier for full
safty procedures.
- Never power up the
obstructions.
- This product is not a toy. Children must be accompanied by an adult at all times if operating
this product.
- Only fly this model in an open area away from crowds, people, buildings, tree's, power lines
and obstructions.
- Always put safety first when operating this model and consider the warnings stated above.
- The supplier/manufacturer accepts no responsibility for damage or injury caused through
the use of the product. Not suitable for children under the age of 14. THIS IS NOT A TOY.
is designed for intermediate to advanced pilots.
model in confined spaces and always keep the props clear of
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Contents
Introduction
Specifications
Contents of box
Required to complete
Assembly
Setting up your model
Model flying precautions
Pre-flight checks
Flying the Ugly Stik
UglyStik tips
Spare parts listing
Trouble shooting
Contact information
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INTRODUCTION:
Thank you for purchasing the Durafly Retro Series ‘Das Ugly Stik’. The Ugly Stik design has
been a popular nitro sports model for almost half a century and this iconic airframe is known
throughout the RC world for its exceptional flight characteristics and charming yet simple lines.
With the Durafly Retro Series Ugly Stik, you too can now experience what made this great
model a classic, but with benefit of modern electronics and EPO construction. No building, no
tuning, no cleaning! Das Ugly Stik is a impressively authentic electric PnF interpretation of this
classic RC subject. From the perfectly captured outline of the design to the exceptionally
convincing dummy nitro engine, Das Ugly Stik from Durafly has it all.
Like all Retro Series models before it, Das Ugly Stik comes with all electronics pre-installed, all
major components assembled for you and a full compliment of tools and accessories included.
No glue is provided, as none is needed! The Ugly Stik bolts and screws together in just 8 easy
steps and multiple access hatches allow for easy access to all internal electronics.
With this latest Retro Series model, you’ll be rewarded with an extremely well balanced and
enjoyable sports model in the air and a great conversation piece on the ground, thanks to the
ultra high level of design and authenticity Durafly has achieved with ‘Das Ugly Stik’.
SPECIFICATIONS:
Wingspan: 1100mm (43.3”)
Lenght: 950mm (37.4”)
Flying weight: 1050g (37oz)
Controls: 4 channel (Ailerons, Elevator, Throttle, Rudder)
ESC: Durafly 30amp (pre-installed)
Motor: 3536 1000kv Brushless outrunner (pre-installed)
Prop: Durafly wooden 10x6
Battery reccommened: 2200mah 11.1v 3S lipo (25C min)
Radio System: Min 4 channel Rx and Tx required.
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CONTENTS OF BOX:
1 2
5
7
8
5. Vertical Stab
6. Accessories Set
7. Horizontal Stab
8. Main Wing
1. Dummy Engine
2. Fuselage
3. Landing Gear
4. Propeller
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4
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REQUIRED TO COMPLETE MODEL:
In its ‘Plug n Fly’ format Das Ugly Stik requires some additional electronic
components to get it flight ready. Durafly recommends the products below for
optimum performance and great value. Available at hobbyking.com
Turnigy 2200mAh
3S 30C Lipo:
Part No. T2200.3S.30
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ASSEMBLY:
1. Locate the bag marked ‘Aileron’ and install aileron control horns and rods for
each side of the wing as shown. Ensure the servo horn is at 90 degrees to the wing
when installing the control rod.
2. Now connect the supplied Y-lead to the aileron servos and set the wing aside for later.
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3. Following the illustration below, screw the remaining control horns to both the
elevator and rudder control surfaces until firmly installed.
PB1.7 x 10mm
PB1.7 x 10mm
4. Turn the fuselage over and with the supplied bolts, secure the horizontal and
vertical tail plane to the rear of the fuselage as shown, connecting the pre-installed
control rods to the control horns. Ensure the tail is firmly secured and aligned.
PM3.0 x 15mm
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5. With the supplied 2.6x10mm screws, attach the landing gear to the plastic plate on
the underside of the fuselage. Screw down firmly to avoid any play at the mounting
point.
6. Install the tail wheel up through the elevator and tighten into the metal collet with
the supplied hex tool as shown. Ensure the tail wheel is directly inline with the
rudder when secured.
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7. Now mount the wing to the fuselage using the four 3x30mm bolts provided. Make
sure no servo wires are caught between the wing an the fuselage when the two are
tightened together.
8. The final stage of assembly is to mount the propeller. Slide the prop onto the motor
shaft and tighten firmly in place. Note: The Durafly logo on the prop faces outwards.
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Assembly of your Durafly Ugly Stik is now complete.
Before you move onto the final set-up of the model, we suggest
you perform a final check on all screws, bolts and components to
ensure all are secture and firmly in place.
SETTING UP YOUR MODEL:
1. With your receiver installed and all servos plugged into their corresponding channels,
connect the flight battery to the ESC to power up the model. With the model now armed,
ensure all servo’s are centered and all control surfaces are level. If not, adjust by turning
the control clevis’s by hand accordingly until the control surfaces are level as shown.
Note: For saftey reasons, it is advised that this is done with the prop removed from the
model.
Ailerons Elevator Rudder
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2. Check all control surfaces are moving in the correct direction with the applicable
stick input (see below)
3. Das UglyStik handles very well in flight but requires setting up beforehand. Please
follow the recommended settings below for good all round flight performance
10-20mm
10-20mm
Rudder
* Elevator ‘low rates’ 10mm ‘high rates’ 20mm in either direction from neutral.
* Aileron ‘low rates’ 10mm ‘high rates’ 18mm in either direction from neutral.
* Rudder ‘low rates’ 12mm ‘high rates’ 18mm in either direction from neutral
10-18mm
10-18mm
12-18mm
12-18mm
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4. Suggested center of gravity (CG) for Das Ugly Stik is approximately 65mm from the
leading edge of wing (on the aileron servo wire). With a 2200mah 3S lipo installed via
the underside battery hatch and pushed as far forward as possible the model should
balance at this point. The C/G can be adjusted to suit your own flying style by moving
the battery backwards or by adding some weight to the nose of the model.
CG Location:
CG 65mm ~ from leading edge
65mm
With assembly and set-up now complete your Durafly UglyStik
should now be ready for flight. However we recommend you read
and follow the advice given in the following stages of this manual
before flying your model.
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MODEL FLYING PRECAUTIONS:
crowded areas
Remember to keep clear of the propeller at all times when your flight battery is
connected.
flight
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PRE-FLIGHT CHECKS:
1. Always range check your model before any flight (especially when flying a new
model for the first time). Follow your radio manufacturers guidelines for performing
this check.
2. Check all screw/bolts and mounting points are firmly secured, including control
horns and clevises.
3. Only fly with fully charged batteries (both in your radio and model). Failure to do
so could result in loss of control, damage to the model and/or persons/property
around you. Check your batteries are fully charged.
4. With the model powered up (Transmitter on first, then receiver/model) check that all
surface are free from damage/obstructions, moving in the correct directions and
freely with stick input.
5. Inspect the model and prop for any damage that may have occurred during transit
and listen for any unusual sounds from the electronics when powered up. If in
doubt, do not fly.
6. With the model held securely and the prop free of obstructions, increase the throttle
just slightly to confirm the rotations of the prop is correct. The model should want to
pull straight forward with throttle.
7. If this is your first flight with the model double check the C/G is at the correct
position. If not adjust battery position inside model accordingly.
8. If you are an inexperienced model pilot seek the help and assistance of an
experienced pilot to perform these final checks and to test fly the model for you.
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FLYING THE UGLY STIK:
The Durafly Retro Series Ugly Stik not only looks as good as the original, but flies just as
well, capturing perfectly those excellent flight qualities that established the Ugly Stik as
such a popular RC sports flyer all those years ago.
Das Ugly Stik requires no special flying considerations as it is such a well mannered
sports model suitable for both novice and experienced flyers alike. The model has a good
range of speed and is just as happy flying at low throttle as she is at high. At the lower
end of the speed range the Ugly Stik exhibits no bad stall tendencies and can be flown
comfortably at half throttle if desired. However when you wish to experience the full flying
capabilities of Das Ugly Stik, full throttle flying is even more fun and all manner of sports
aerobatic maneuvers are achievable with the model.
Thanks to the steerable tail wheel and the wide stance of the main gear, the Ugly Stik
handles very well on the ground and take off is always very straight and controlled either
on paved or grass surfaces. With good acceleration and plenty of power your Ugly Stik
will be airborne within a few feet and with less than 3/4 throttle. Once in the air you’ll be
rewarded with an airframe that goes exactly where you point it and tracks very true in
flight. Even more impressive is the sight of its electric powered nitro engine as it flies
pass in near silence. This unique feature of the Durafly Ugly Stik will never get old and
always impresses. If required the Ugly Stik can also be hand launched with ease at full
throttle and with nothing more than a over arm launch from standing.
Flight times on the recommended 2200mah 3S lipo range from 6-9 minutes, depending
on your use of throttle and with its low current draw, the power system is always barely
warm to the touch after each flight. When it is time to land, the Ugly Stik is comfortable in
either a power on or power off approach, depending on your preference and circumstance. The model will glide power off and you’ll remain comfortably in control in either
situation all the way down.
Don’t forget to make a point of stopping and starting the Ugly Stiks electric nitro engine in
flight or when on the ground, its entertaining for all to see and is part of what makes the
Retro Series Ugly Stik from Durafly so special.
Happy flying and thank you for choosing Durafly.
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UGLY STIK TIPS:
1. When handling the Ugly Stik it is recommended that you do so only from the leading
edge of the wing to avoid wear to the edges of the fuselage. The Ugly Stik by design
has flat sides and hard edges to the fuselage, edges that are vulnerable as painted
EPO. Over time these edges can get worn down if handled so it is best to try and avoid
handling the UglyStik by any surface other than the wing.
2. It is HIGHLY recommended to use a piece of foam or sponge behind the battery
when installed in the fuselage to keep the lipo from sliding backwards during flight.
3. For optimum flight performance and model longevity it is highly recommend that you
always fly with a balanced prop. This is especially true with the Ugly Stik as a badly
balanced prop can damage the dummy nitro engine and electric power system of this
model. The supplied prop should be balanced, but it is always good to check first. If you
replace the propeller with your own choice of prop, please be sure to balance it
beforehand.
4. Flight packs of 25C discharge rate or above are recommended for use in the
UglyStik to ensure optimal performance in flight and from the power system.
5. 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 around electronics and a reduction in potential electronic
signal interference (noise).
6. Inspect the propeller and 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.
Thank you again for purchasing the Durafly Retro Series Ugly Stik.
We hope you’ll have many happy days of 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.
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SPARE PARTS LISTING:
Fuselage
9306000098-0 9306000099-0 9306000100-0
Main wing
Horizontal stabiliser
Vertical stabiliser Battery hatch Dummy engine
9306000101-0 9306000102-0 9306000103-0
Landing gear
9306000104-0 9306000106-0
Prop nut set
9306000107-0
Accessories set
9306000105-0
Sticker sheet
9306000108-0 9306000109-0
Propeller
Motor
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TROUBLE SHOOTING:
Problem Cause Solution
Motor does
not turn
Model moves
backwards
Control surfaces
not moving with
stick input
Model does not
fly straight
1. Battery is not fully charged.
2. Transmitter battery low.
3. Motors not connected.
4. The motor is damaged.
5. Reciever is not bound to Tx.
6. ESC in set-up mode.
1. Prop installed backwards
1. The servo lead is connected
2. The servo is damaged.
1. Control surfaces not centered.
2. CoG is not in the correct position.
to Rx incorrectly.
1.Charge the batteries.
2. Install a full charged battery.
3. Check for connection
between the ESC and
motor.
4. Replace motor.
5. Consult Radio manual and
go through bind procedure
again.
6. Hold model and move
throttle to full postion then
back down to idle.
1. Turn the props around .
1. Make sure the servo leads
are connect properly.
2. Replace servo.
1. Adjust the trims on the
transmitter.
2. Re-possition lipo as
suggested.
Model does not
climb well
Limited Radio
Range
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1. The battery is not fully charged.
2. Elevator servo is reversed.
3. CG too far backwards.
1. Transmitter/Receiver batteries
are flat.
1. Charge the battery.
2. Change servo direction
via Tx.
3. Move battery forwards.
1. charge/replace batteries.
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