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SIG Rascal 72 EG, Инструкция по сборке, Страница: 5 / 20

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NOTE:  In this manual, any references to right or left, refer to your
right or left as if you were seated in the cockpit of the airplane. 

The wings are designed as a 2-piece system, with sererate right
and left wing panels joined by an aluminum blade Front Wing
Joiner and a steel Locating Pin at the rear.  This system has
proven to be very tough.  An obvious benefit is the fact that the
wing panels can be easily transported or stored, requiring a min-
imum of space.  Also, you might want to consider using 5-minute
epoxy to permanently install the aluminum blade wing joiner and
the rear steel locating pin into one of the wing panels.  Doing this
prevents accidentally losing these parts - your call.  Note that the
ailerons have been factory-hinged.  Flex them up and down a few
times to loosen them up and they are ready to use.  

For the following steps you will need two standard-size Servos for
the ailerons, two 12”-24” Servo Extension Chords and one dual
servo Y- Harness for your particular radio system.

❑ 

1)  The aileron servos will be mounted in the bottom of each

wing panel.  Notice the servo bay openings located just in front of
the ailerons, in the bottom of each wing panel.  Inside the servo
bay opening you will see a short length of balsa wood with a string
tied to it.  This string will be used later to pull the aileron servo
chord through the wing - leave it in place for now.

Also on the bottom of each wing panel, near the front at the cen-
ter, you will see an oblong opening.  This is the exit hole for the
servo chord.  Inside this opening you will see another piece of
wood with a string tied to it - this is the other end of the string in
the aileron servo bay.  Leave the string in place for now.

❑ 

2)  First we will mount the aileron servos onto the molded plastic

Aileron Servo Hatches.

     a)  Begin by installing the rubber grommets and brass eyelets

(supplied with your radio system) into each servo.

     b)  Use epoxy to glue two Hardwood Servo Mounting Blocks

to the inside surface of the plastic Hatch.  Use the servo to deter-
mine the correct spacing and location for the blocks.  Be sure to
locate the servo with the output arm directly in the center of the
pushrod fairing that is molded into the hatch, as shown.  Allow the
epoxy to dry.

     c)  M2 x 6mm PWA Screws are provided to reinforce the

mounting of the hardwood servo blocks to the plastic hatch.  Mark
the center of both blocks on the top (plastic) side of the hatch.  Tip:
Hold the hatch up to a light (blocks towards the light), and you will
be able to see a shadow on the plastic side indicating where the
blocks are located.)  Drill a 1/16" dia. pilot hole about 1/4" deep,
through the hatch and into the mounting block.  Install a screw in
the hole.  Repeat to install a screw in the other mounting block.

     d)  Use a Dremel® Tool and a tapered sanding drum bit to

open the end of the pushrod fairing in the plastic hatch, where the
pushrod will pass through from the servo arm to the aileron horn.

     e)  Mount your aileron servo to the hatch, using the screws

that were provided with the radio system.  Be sure to drill pilot
holes in the mounting blocks before screwing the servo in place.

     f)  Repeat steps 2a) through e) to mount the other aileron

servo to the other plastic hatch.

5

WING ASSEMBLY

Содержание Rascal 72 EG

Страница 1: ...5 5 lbs 2268 2495 g Wing Loading 16 17 6 oz sq ft 49 54 g dm2 Radio Required 4 Channel with 5 Standard Servos Glow Power 2 Stroke 40 46 cu in 6 5 7 5 cc 4 Stroke 40 54 cu in 6 5 8 8 cc Electric Power 500 800 watt Brushless Motor 50 60 amp ESC Lipo Battery Pack SIG MFG CO INC PO Box 520 Montezuma IA 50171 0520 www sigmfg com ...

Страница 2: ... in Whatever brand engine you choose take the time to carefully break it in according to the manufacturer s instructions A good running reliable engine is a minimum requirement for the enjoy ment of this or any R C model aircraft PROPELLER FOR GLOW Refer to the engine manufacturer s instructions for recommenda tions on proper propeller size for their engine In our experience most 2 stroke 40 46 gl...

Страница 3: ...ilable voltage 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 REQUIRED TOOLS For proper assembly we suggest you have the following tools and materials available A selection of glues SIG Thin Medium Thick CA Glue CA Accelerator CA Debonder SIG Kwik Set 5 Minute Epoxy Screw...

Страница 4: ...r rect temperature This is critical for achieving a good result The iron should be set to about 220OF 250OF 104OC 121OC as measured on the bottom of the iron using a thermometer If you do not have a thermometer you can find the correct tem perature by trial and error Set your iron to a medium setting Glide the iron over some of the covering that is over solid wood such as the sheeted wing center s...

Страница 5: ...servo chord Inside this opening you will see another piece of wood with a string tied to it this is the other end of the string in the aileron servo bay Leave the string in place for now 2 First we will mount the aileron servos onto the molded plastic Aileron Servo Hatches a Begin by installing the rubber grommets and brass eyelets supplied with your radio system into each servo b Use epoxy to glu...

Страница 6: ...ion Using the pre drilled mounting holes in the servo tray as your guide drill four 1 32 dia pilot holes through the sheeting in the bottom of the wing Then mount the hatch using the provided M2 6 x 8mm PWA Screws Repeat this step to mount the other servo hatch in the other wing panel 5 From the kit contents locate two Nylon Control Horns four M2 x 20mm Mounting Bolts and two wire Aileron Pushrods...

Страница 7: ...other positions The difference can generally be found in the starting procedures used by individual modelers Flooding can be minimized by remembering to keep the carbure tor closed between flights and during fueling When first starting the engine keep the throttle in the low position Using an electric starter is recommended Avoid choking fuel through the line by placing your finger over the carbur...

Страница 8: ...ow you to adjust the mounts to fit your engine After you get the mounts in correct position tighten all four mounting bolts securing the engine mounts on the firewall 5 Slide the engine forward or aft on the engine mounts until the front of the engine s thrust washer is 4 1 2 from the front of the firewall 6 Double check to make sure that the engine is pointing ex actly straight forward and then m...

Страница 9: ...f the holes Use a sharp hobby knife blade to pierce the front wall of the closed hole Install the 3rd tube in that hole again with 3 8 of tube sticking out in front of the stopper assembly 3 Put the plain end of a 47 drill bit about 1 4 inside the back end of the vent tube Using the drill bit for leverage slowly bend the back end of the vent tube upwards at least 45O Do not to put a kink in the al...

Страница 10: ...o the engine The best method is to sneak up on these openings continually trial fitting the cowling over the engine until it finally fits properly Once the opening is big enough for you to slip it over the engine and place it in correct location on the model then continue modifying the opening as needed to provide access to the needle valve and the fuel line tubing at the carb Note A Dremel Tool o...

Страница 11: ...f the carburetor throttle arm c Put the carburetor in full high throttle position d Use a marker pen to mak the nylon pushrod tube where it should be cut and still accept 1 4 of the threaded stud e Use a sharp blade to cut the pushrod tube at the mark f Take the R C link and threaded stud off the carburetor throt tle arm Screw the end of the threaded stud at least 1 4 into the end of the nylon pus...

Страница 12: ...hot at the location cut an angle on the end of the stick to allow you to hold the blind nut at the correct angle 3 Additional holes are needed in the firewall to allow air to flow back inside the fuselage to cool the battery and the ESC in flight We recommend drilling three new 3 8 dia holes in the lower part of the firewall as shown in the photo These three new holes in addition to the laser cut ...

Страница 13: ...it of the cowl and make any adjustments needed with tape to hold it in place Then on the opposite side of the fuselage drill another 1 16 guide hole and install a screw into that hole Repeat this process for the remain ing two cowl mounting holes Remove the tape 10 COOLING IS IMPORTANT With a fully cowled in electric motor it is very important to make sure your power system is getting proper cooli...

Страница 14: ... Spread the glue evenly over the exposed wood of the stabilizer saddle Carefully set the stabilizer back in position on the saddle Press the stabilizer down firmly and pin it in correct position Quickly recheck the alignment in both the top and front views before the glue dries Use a paper towel and rubbing alcohol to wipe off any excess glue that oozes out of the joint Let this joint dry complete...

Страница 15: ...see in the hinge gap should have a dry appearance not wet Two to three good size drops of Thin CA should be about the right amount NEVER USE CA ACCELERATOR ON CA HINGES TAILWHEEL Locate the following parts from the kit contents 1 Leaf Spring with Tailwheel Steering Arm 3 M2 6 x 12mm PWA Screws 2 Coil Steering Springs 1 Mount the leaf spring assembly in place on the bottom rear of the fuselage a Fi...

Страница 16: ... Be sure there is solid sheet balsa under the covering in the area you are putting the switch Use a modeling knife to cut the opening Use a 1 16 dia drill to make the holes for the bolts Install the switch Internal Mount Some flyers prefer to mount the switch internally to keep it away from dirt and fuel If you wish to mount your switch inside the fuselage you can simply stick it to the floor with...

Страница 17: ...t least 1 4 Thread a metal R C link onto the stud centering the threads to allow equal adjustment in either direction b Slip the opposite end of the pushrod tube into the outer pushrod sleeve inside the fuselage on the right side for the ele vator servo Slide it all the way towards the back until you can clip the R C link into the outermost hole in the elevator servo arm c Turn on your radio syste...

Страница 18: ...cal completely off the backing sheet being careful not to let the sticky side double over and adhere to itself Then spray the adhesive side of the decal as well Lightly position the decal in place on the wet surface of the model Do not push down The liquid allows you to slide the decal into the desired final position as long as you don t press down on it Once you have it in position gently squeege...

Страница 19: ... and smoothly advance the throttle do not slam the throttle full open all at once As the RASCAL begins moving forward back off of the up elevator input and use the rudder only as needed to correct any engine torque and or wind induced deviations from a straight take off run Allow the airplane to lift off using ailerons to keep the wings level Climb to a reasonable altitude before mak ing any trim ...

Страница 20: ...s you with important 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 72 EG ARF Should you encounte...

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