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good power margins and excellent high speed-low speed 
characteristics. Using larger engines is not recommended. Larger
engines weigh more and will cause CG problems.

COVERING MATERIAL:

Your Little Extra ARF has been professionally covered using 
SIG AEROKOTE-LITE

iron-on covering film.

This is a low 

temperature covering film that is both very tough and light, 
weighing only 5.9 grams per square foot.

For reference, the

AEROKOTE-LITE

colors used on this model are:

#SIGSGX204 Cream and #SIGSGX241 Turquoise  or
#SIGSGX100 Brilliant White and #SIGSGX360 Violet

If you live in a drier climate, you may notice that some wrinkles
might develop after removing the covered parts from their plastic
bags. This is does not mean that the covering is defective! Your
model was built and covered in a part of the world with relatively
high humidity and therefore the wood was likely carrying a fair
amount of moisture. When exposed to drier air, wood typically
loses this moisture, dimensionally "shrinking" in the process. In
turn this may cause some wrinkles. However, wrinkles are easy to
remove by just using a hobby type heat iron. Remember that with
thin structures, such as the tail group and ailerons, excess heat
will warp them.

Therefore, be careful when applying heat to

remove a wrinkle - a Trim Seal tool, with a small shoe is always
best for these kinds of surfaces - be sure to use the low heat 
setting on this tool.

For reshrinking AEROKOTE-LITE

set your iron temperature

to approximately 140

O

-180

O

F (60

O

-82

O

C).

Use the iron to go completely over all seams and color joints, 
making sure they are all well sealed and secure. If a wrinkle is
found, hold the hot iron over the wrinkle to lightly shrink the 
material - do not press on it. Once the covering is tight, lightly iron
it back down to the wood. Be careful with the iron when working
around any seams. Overheating a seam may cause the covering
to creep, exposing the wood beneath. Also, use caution when
working with heat around the canopy area - heat will distort this
clear plastic material.

REQUIRED TOOLS:

For proper assembly, we suggest you have the following tools and
materials available:

A selection of glues - SIG Thin and Thick CA 

and SIG Kwik-Set 5-Minute Epoxy

Threadlock Compound, Such as Loctite

®

#242 Non-

Permanent Blue
Screwdriver Assortment
Pliers - Needle Nose and Flat Nose
Diagonal Wire Cutters
Small Allen Wrench Assortment
Small Power Drill With Selection of Bits
Pin Vise for Small Dia. Drill Bits
Hobby Knife With Sharp #11 Blades
Scissors
Heat Iron and Trim Seal Tool
Masking Tape
Paper Towels

COMPLETE KIT PARTS LIST:

The following is a complete list of all parts contained in this kit.
Before beginning assembly, we suggest that you take the time to
inventory the parts in your kit.

AIRCRAFT PARTS:

Bag #1

Vertical Fin and Rudder Assembly (with 3 unglued hinges 
in place) 

Bag #2

Horizontal Stabilizer and Elevator Assembly (with 6 unglued 
hinges in place) 

Bag #3

Wing Assembly with Ailerons (with 4 unglued hinges in 
place for each aileron)

Bag #4

Fuselage Assembly (with rudder & elevator pushrod tubes 
installed and canopy installed) 

Bag #5

2

1mm x 126mm Aileron Pushrods Z-Bend

1

1mm x 325mm Throttle Pushrod with Z-Bend

1

1mm x 495mm Rudder & Elevator Pushrods with Z-Bend

1

Sub Bag (a)

1

4-40 x 1" Nylon Wing Bolt

4

Control Horns

5

Pushrod Keepers

Bag #6

2

42mm x 58mm Plastic Aileron Hatch/Mount Covers

4

7.2mm x 10.2mm Hardwood Aileron Servo Mounting 
Blocks

1

Plywood Aileron Positioning Guide (APG)

1

6mm x 12mm x 63mm Balsa Fuel Tank Retainer

2

MODELER'S TIP: A method to avoid damaging seams and
joints when reshrinking the covering is to protect them with
paper towels soaked in cold tap water and rolled into strips.
These are then arranged directly onto the joints or seams and
their coolness protects the seam from shifting or "crawling"
under heat.

Summary of Contents for little extra

Page 1: ...ger fun fly type sport models the Little Extra is loaded with a lot of features and truly exhilarating performance potential The airframe is very light beautifully built and engineered to last a long time The covering has been professionally applied and the trim scheme is just about perfect for this type of model The assembly process is very quick and further enhanced by the completeness of the ki...

Page 2: ...h the iron when working around any seams Overheating a seam may cause the covering to creep exposing the wood beneath Also use caution when working with heat around the canopy area heat will distort this clear plastic material REQUIRED TOOLS For proper assembly we suggest you have the following tools and materials available A selection of glues SIG Thin and Thick CA and SIG Kwik Set 5 Minute Epoxy...

Page 3: ...the pre cut hinge slots in the wing panel up to the hinge slot cut out Place a card wedge into each hinge center and then press the aileron in place onto each exposed hinge half up to the card wedges Align the outer tip of the aileron with the wing panel tip The hinges are now in proper position for permanently gluing in place with thin CA glue Flex the aileron downward about 30O or so exposing bo...

Page 4: ...ply some thick CA glue to one end of one of the hardwood mounting blocks and press it in place next to the servo beneath its mounting lug and use CA accelerator to set the glue Apply glue to the end of another mounting block and press it in place on the opposite side of the servo beneath the mounting lug Remove the tape and the remove the servo Use a small diameter drill to make pilot holes in the...

Page 5: ...o leads to the Y harness and plug the Y harness lead into the aileron channel in your receiver Connect your On Off switch lead into the receiver and the battery pack to the switch Turn on your transmitter and make sure the aileron trim lever is in dead neutral Turn on the airborne system with the switch and move the transmitter aileron stick to confirm that he servos are both moving Reinstall both...

Page 6: ...measurement on the other side of the model the two measurements should be the same or within 1 16 or so of each other Also make sure the slot in the center of the stabilizer is aligned directly beneath the vertical fin slot at the top rear of the fuselage Use the vertical fin to check that it fits in place without leaning one way or the other Turn the wing over and use another piece of tape along ...

Page 7: ...tabilizer elevator assembly carefully back in place into the fuselage Once again align the stabilizer squarely to the fuselage per the above instructions With everything aligned set the model on a flat surface and stand back a few feet to view it directly from the front The stabilizer should be parallel with the wing in front view If it is tilting one way or the other use tape or small weights to ...

Page 8: ...ct or small diameter drill bit to clear out this hole to allow clearance for the rudder control horn mounting spikes 6 The tail wheel mounting plate is now secured to the bottom rear of the fuselage with the two M2 x 6mm PWA screws included with the tail wheel assembly Slide the mounting bracket up to the fuselage and hold it centered in place to the bottom of the fuselage Use a marking pen or poi...

Page 9: ...front guide the tank through the fuselage wing saddle and into the tank former Continue pulling the string until the stopper assembly fits into the round cut out in the front face of the firewall From the rear push the tank firmly into position as far forward as it will go The silicon sealer will form a very nice gasket protecting the inside of the fuselage from fuel 2 The balsa Fuel Tank Retainer...

Page 10: ... radio system RADIO INSTALLATION 1 Install the rudder elevator and throttle pushrods into the fuselage From the open wing saddle insert the unbent ends of each wire pushrod into the appropriate tubes The rudder elevator and throttle servos are now installed onto the fuselage servo tray as shown We installed the rear rudder and elevator servos first and the throttle servo last We also found it help...

Page 11: ...g tape to hold the elevators in neutral to the horizontal stabilizer Turn the transmitter on followed by the airborne radio system Make sure the transmitter elevator trim is in neutral Turn the fuselage over for easy access to the bottom of the horizontal stabilizer Slide one of the plastic pushrod keepers in place onto the pushrod with its arm facing to the rear and move it back toward the fusela...

Page 12: ...n place Thread one of the M3 Hex Nuts in place almost up to the wheel hub Thread a second M3 Hex Nut in place up to the first nut Use pliers or a metric box end wrench to hold one of the M3 nuts while firmly tightening the second nut to it make sure the wheel turns freely Slide the exposed end of the M3 Axle Bolt through the bottom hole in the aluminum Main Landing Gear Start to thread one of the ...

Page 13: ...n even lower idle speed can be obtained However you must experiment a little to obtain the lowest possible reliable idle speed without killing the engine Our experience with this simple modification has given us very reliable low speed idle characteristics and after adjusting the trims on our transmitter even the ability to use the Throttle Cut feature available with some transmitters 2 Now is the...

Page 14: ... engines makes break in a must before attempting to fly the model Break the engine in per the factory instructions and DO NOT use the molded plastic spinner provided in this kit during break in We recommend that you use an electric starter to start the engine the first few times using the propeller spinner thrust washer provided with the engine This avoids burning the spinner with the electric sta...

Page 15: ...this model Such conditions are always best for evaluating and trimming R C aircraft especially smaller models We also strongly suggest that you perform a complete range check of your radio system with and without the engine running Radio system problems will not magically disappear once you re in the air We suggest that you take this model off from the ground Rise Off Ground While it might be poss...

Page 16: ...16 HERR LITTLE EXTRA LOG BOOK Date of first flight Comments ...

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