SIG RASCAL EP-49 Assembly Manual Download Page 14

tion, even when the transmitter is in storage.  Be sure to recheck
the throttle stick position before plugging in the battery pack.
Under no circumstances should you hold this model by the nose
when the battery is plugged in.  Never plug your battery pack onto
the system until; 1) your transmitter is ON with the throttle stick in
the low position, and 2) you are on the flight line, ready to fly.

SIDE WINDOW INSTALLATION:

From the contents of your kit, locate the molded side windows.
Use scissors to cut out each window, leaving about 1/8" of plastic
around the edges for a gluing surface.  We suggest using 5-minute
epoxy or RC-56 glue to mount the windows into the inside of the
fuselage.  DO NOT use thin CA glue for this step!  Apply a thin
bead of glue to these edges and press the window in place from
the inside of the fuselage.  Use small pieces of tape to hold the
windows in place until the glue sets.

DECAL APPLICATION

The decals supplied with the RASCAL EP-49 are stickers with a
self-stick adhesive back.  They are not water slide decals.  Also,
these decals are not die-cut.  Each design must be cut from the
sheet with a sharp #11 hobby knife or a sharp scissors.

Small decals can be easily applied to the model by simply remov-
ing the paper backing sheet, and then, laying the decal in position
and pressing it in place with your finger.

For the larger decals, such as the "RASCAL EP-49" wing decal,
we suggest the following "wet" method of application:

a) Carefully cut out the decal with a hobby knife.
b) Peel the paper backing sheet completely off the decal, being

careful not to let the sticky side double over and adhere to itself.

c) Use a product like SIG Pure Magic Model Airplane Cleaner,

Fantastic®, or Windex® to spray the adhesive side of the decal.
Also, spray the area of the model that will receive the decal.

d) Lightly place the decal onto the wet surface of the model.

The liquid cleaner solution will keep the decal from actually stick-
ing to the model until you have had time to shift it around into exact
position.  Once in position, use a piece of stiff cardboard (or sheet
balsa, thin plywood, or a SIG SH678 EPOXY SPREADER) to
squeegee the excess liquid out from under the decal.  Squeegee
repeatedly, removing all excess liquid and any air bubbles.  Mop
up the liquid with a paper towel.  Allow to dry overnight.

e) When completely dry, wash off any soapy smears with a soft

clean wet rag.

BALANCE YOUR  AIRPLANE

IMPORTANT:  An R/C model should always be balanced with
everything on board, ready for flight.  The flight battery must be
installed in the fuselage and the propeller and spinner must be
mounted in place when balancing the model.

Because the RASCAL EP-49 is a relatively small and light air-
plane, the single most effective adjustment you can make to
achieve correct balance is the weight of the battery pack and its
location.  As mentioned in the beginning of this manual, we rec-
ommend 3S1P lithium-polymer (lipo) battery packs in the 850-
1400 mAh range.  The difference in weight between these two size
battery packs can be as much as 1-1/2 ounces, making it an ef-
fective balancing tool.  Battery packs in this range all provide
plenty of flight time, so we chose the pack that best balanced our
individual airplane.  We suggest that you do the same thing.

RECOMMENDED BALANCE POINT

2”  to  2-5/16"

Behind The Leading Edge Of The Wing

At The Fuselage Sides

Notice that the rear face of the main wing spar of the RASCAL
EP-49 is at the rear limit of the balance range.  The simplest way
to check the balance of your RASCAL EP-49 is to place a finger-
tip, one on each side of the fuselage, at the main spar location on
the bottom of the wing.  Slowly lift the airplane off the worktable
and note the attitude of the fuselage.  The airplane should balance
on your fingertips in level position - not nose up or nose down.  If
the nose hangs low, the model is "nose heavy".  If the tail hangs
low, this means that the model is "tail heavy".  If either of these
conditions exists, you must make adjustments to correct the prob-
lem.  Never attempt to fly a model that is out of balance!  Since
the battery pack is the single heaviest component in the airplane,
it can be used to adjust almost any tail heavy or nose heavy con-
dition.  This is simply done by moving the battery forwards or back-
wards inside the airplane, and/or going to a lighter or heavier
battery pack.

FLYING YOUR RASCAL EP-49

The RASCAL EP-49 appeals to R/C fliers of all experience levels
-from beginners to expert pilots.  Assuming that the expert pilots
will not need much guidance, these flying notes are written for the
R/C newcomer.

PRE-FLIGHT

Be sure your flight battery pack is fully charged.  Also, be sure
your transmitter is fully charged.  We highly recommend that you 
perform a standard range check on your radio system - with and
without the motor running.  Make sure your propeller is balanced
and has no nicks or cracks - never fly with a faulty propeller!  Fi-
nally, take a few minutes to give your model a thorough pre-flight
inspection.  Make sure everything is secure and tight and operat-
ing properly, before attempting to fly the model.  Any problems you
have will not magically disappear in the air - they will get worse!

14

Summary of Contents for RASCAL EP-49

Page 1: ... SIG Mfg Co Inc Wingspan 49 in 1245 mm Wing Area 324 sq in 20 9 dm2 Length 32 1 2 in 825 5 mm Flying Weight 22 25 oz 624 700 g Wing Loading 9 7 11 1 oz sq ft 30 33 g dm2 Radio Req 4 Channel Mini Receiver 4 Mini Servos ...

Page 2: ...ltage in the cells en suring that the battery pack is at peak capacity at the end of the charge cycle This translates to better flight times and a longer life from the battery pack RADIO EQUIPMENT The RASCAL EP 49 gets its great flight performance from many factors but two of the most important factors are its lightweight and generous wing area The lighter the final weight is the better this airpl...

Page 3: ... 11 blades Scissors Covering Iron and Trim Seal Tool Paper Towels Rubbing Alcohol for cleaning off excess epoxy glue KIT INVENTORY 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 1 bag 1 Fuselage with Clear Plastic Windshield installed Elevator Rudder Pushrod Tubes installed 1 bag 1 R...

Page 4: ... place on the fuselage After checking the fit remove the wing AILERON HOOKUP For this section you will need the assembled Wing 2 Aileron Servos and appropriate Chords see radio notes at beginning of this book 2 Short Formed Wire Pushrods 2 Nylon Control Horns and 2 Nylon Pushrod Keepers 3 Note that the ailerons are permanently hinged in place Give each aileron a gentle pull to the rear to double c...

Page 5: ...e of the horn is right at the front edge of the aileron Follow these steps a First with a sharp hobby knife or razor blade shorten the pegs on the bottom of the control horns so the pegs won t poke through the cov ering on the top side of the ailerons Cut off half the length of the pegs b Hold the control horn in correct location on the aileron and when you have it in the correct position press do...

Page 6: ...the control horn mounting Puncture the cov ering material directly over these two holes on the BOTTOM of the elevator only to accept the two pegs of the control horn b Use a sharp knife to remove the covering material around the two holes where the control horn will sit c Glue the nylon control horn in place on the BOTTOM of the elevator using thick CA glue Apply a small amount of glue to the two ...

Page 7: ...e rudder only c Use a sharp knife to remove the covering material around the two holes where the control horn will sit see photo back in Step 9 of the elevator horn mounting d Glue the nylon control horn in place on the LEFT of the rud der with thick CA glue Apply a small amount of glue to the two pegs and a small amount of glue to the bottom of the control horn base itself Firmly press the horn i...

Page 8: ...Formed Wire Pushrods and 2 Nylon Pushrod Keepers 16 Mount the elevator and rudder servos in the fuselage using the screws that came with the servos a Begin by positioning the servos in place in the plywood servo tray built into the fuselage Make sure the ends of the servo arms line up with the plastic pushrod tubes already installed in the fuselage b Once you have the servos correctly positioned d...

Page 9: ...ve it The wire should slide in easily all the way in until it bot toms out in the slots b Remove the gear from the fuselage and use coarse sand paper to sand the wire everywhere it will contact the fuselage sides Then wipe the wire clean with a rag soaked in rubbing al cohol or paint thinner This will improve adhesion of the glue c Apply 5 minute epoxy into each landing gear slot on the in side of...

Page 10: ...nto the end of the shaft with it s hex end going on first The propeller will be put on later The other hard ware in the small parts bag is not needed for this installation 24 There are two small set screws holding the motor mount on the back of the motor shaft Use a 1 5mm hex wrench or ball driver to loosen the two set screws far enough to allow you to pull the mount off of the shaft 25 Using 3 M2...

Page 11: ...shown in the next photo RECEIVER BATTERY INSTALLATION For this section you will need the remainder of hook and loop tape your receiver the aileron Y Harness and a charged flight battery pack 30 You can mount the receiver either on the top or bottom of the plywood cabin floor using a piece of hook and loop tape to keep it in place We mounted ours on the bottom 31 Plug the aileron Y harness into the...

Page 12: ...u were sitting in the cockpit the motor shaft should turn clockwise when throttle is applied If your motor is turning in the wrong direction double check that you have the red black and white wires from the motor to the ESC plugged in correctly If they are correct red to red black to black white to white and the motor still turns the wrong direction simply switch two of the wires to change the dir...

Page 13: ...up tight against the rear lock nut Tighten it securely If you have some Locktite thread locking compound put a drop between the two nuts before you tighten them together b A short section of aluminum tubing is provided with the pro peller to sleeve down the hole in the prop hub to the same diam eter as the prop shaft Press the aluminum sleeve into the center hole of the prop as shown It s a tight ...

Page 14: ...eady for flight The flight battery must be installed in the fuselage and the propeller and spinner must be mounted in place when balancing the model Because the RASCAL EP 49 is a relatively small and light air plane the single most effective adjustment you can make to achieve correct balance is the weight of the battery pack and its location As mentioned in the beginning of this manual we rec omme...

Page 15: ...easy Don t get discouraged if you have a minor crack up Repair the damage and get back into the air as soon as possible FIRST TEST FLIGHT Choose a calm day with little or no wind for the initial test flights This is important in getting the model properly trimmed If there is too much wind you won t get a true reading on what the model is doing in the air The RASCAL EP 49 is capable of taking off f...

Page 16: ...nt liability insurance in case your R C model should ever cause serious property damage or personal injury to someone else ACADEMY OF MODEL AERONAUTICS 5161 East Memorial Drive Muncie IN 47302 Telephone 765 287 1256 AMA WEB SITE www modelaircraft org CUSTOMER SERVICE SIG MFG CO INC is committed to your success in both assembling and flying the RASCAL EP 49 ARF Should you encounter any problem buil...

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