SIG Rascal 80 eg Assembly Manual Download Page 4

Fuel Tank for Glow Engine 

  (1) Fuel Tank Body - 295cc (10 oz.) 

  (1) Rubber Stopper 

  (1) M3 x 34mm Bolt 

  (1) Metal Clunk Pick-Up 

  (3) Plastic Tube - 4mm od x 60mm 

  (2) Zip-Ties 

  (1) 5/16" x 3/4" x 3-3/16" Balsa Fuel Tank Retainer 

Engine Mounts for Glow Engine 

  (1) Right Nylon Engine Mount 

  (1) Left Nylon Engine Mount 

  (8) M4 x 25mm Mounting Bolts 

  (8) M4 Flat Metal Washers 

  (4) M4 Blind Nuts 

  (4) M4 Nylon Insert Locking Nuts 

Electric Power Accessories 

 (1) Adjustable Wood Motor Box 

 (1) Balsa Tri Stock Stick  

 (2) Hook n Loop Straps 

   

 NOTE:  “PWA Screws” are metal screws with a Phillips/washer  

               style head. 

 

COVERING MATERIAL 

Your  RASCAL  ARF  is  covered  with  ORACOVER®,  a  premium  quality 
covering  made  in  Germany,  and  sold  in  the  U.S.  by  Hanger-9  as 
Ultracote®. 

Colors Used On Your Airplane

 

      ORACOVER® #10 White (Ultracote® #HANU870) and 

              ORACOVER® #29 Transparent Red (Ultracote® #HANU950) or 

             ORACOVER® #59 Transparent Blue (Ultracote® #HANU954) 

If sometime in the future you need replacement covering or matching 
paint  for  repairs,  they  are  available  from  your  local  hobby  dealer  or 
online from Hanger-9. 

How to Tighten Loose Covering 

After you open your RASCAL 80 and take all the covered parts out of 
their  plastic  bags,  the  covering  may  begin  to  wrinkle.    This  is  not 
unusual and is no cause for alarm.   

Your airplane was built and covered in a part of the world which has 
relatively high humidity and therefore, the wood was likely carrying a 
fair amount of moisture.  When exposed to drier air, the 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.  Caution: Trying to remove the 
wrinkles by hastily going over them with a heat gun can lead to more 
problems.  You should take your time to carefully go over the entire 
model with a covering iron, as we will describe. 

We suggest using a model airplane covering iron for this process. Cover 
the  iron's  shoe  with  a  thin  cotton  cloth,  such  as  an  old  T-shirt,  to 
prevent scratching the covering as you work. 
After covering your iron, the next step is to set the iron to the correct 
temperature.    This  is  critical  for  achieving  a  good  result!        The  iron 

should be set to about 

220

O

F - 250

O

F (104

O

C - 121

O

C) 

as measured on 

the bottom of the iron using a thermometer.   

If  you  do  not  have  a  thermometer,  you  can  find  the  correct 
temperature 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  section.    Observe  the  covering  to  see  if  any 
bubbles  appear.    If  bubbles  appear,  the  covering  is  getting  too  hot!  
Turn down the temperature of the iron and repeat the test. 

If no bubbles appear, turn up the heat slightly and repeat the test. Keep 
adjusting  until  you  “zero  in”  on  the  correct  temperature.    Find  the 
temperature that will get the covering to stick down without forming 
bubbles or causing the seams to pull away.   

Once  your  iron  is  set  to  the  correct  temperature,  go  over  the  entire 
framework of the airplane, making sure that the covering is securely 
bonded  to  the  structure  everywhere  the  covering  comes  in  contact 
with  the  wood  underneath.    This  takes  some  time,  but  is  worth  the 
effort. 

After you have all the covering secured onto the solid areas, turn the 
temperature  of  the  iron  up  to  approximately 

300

O

F  -  320

O

F  (149

O

C - 

160

O

C)

.    This  is  the  correct  temperature  for  shrinking  the  covering 

material. 

Use the iron to tighten up any wrinkles in the “open” areas of the model 
(no wood underneath the covering).  Glide the iron over the wrinkle for 
a few seconds, then remove.  Repeat until the covering is tight with no 
wrinkles. 

 

If  wrinkles  keep  coming  back  on  the  tail  surfaces,  you  may  need  to 
“ventilate” the areas between the ribs.  Otherwise the air that is sealed 
in those relatively small areas will expand when the heat is applied and 
actually cause the covering to stretch instead of shrink.  Use a pin to 
poke a tiny hole in the covering between each rib, on the bottom of the 
part.  That will let the expanding air escape and the covering to shrink 
properly. 

Caution When Using Heat Guns:  

You can also use a hobby-type  heat  gun  to  shrink  the  covering,  but 

you must be careful around seams or color  joints.   Getting  too  much 
heat on the seams  may  cause  them  to "creep" or  come  loose.   You 
must also be careful  when  using  a  heat  gun  when  working  around  
the windshield and side windows – heat  will  distort  the  clear  plastic 
material. 

 

Recommended Temperatures:

 

To adhere the covering - 220

O

F - 250

O

F (104

O

C - 121

O

C)

 

To shrink the covering  - 300

O

F - 320

O

F (149

O

C - 160

O

C) 

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. 

Summary of Contents for Rascal 80 eg

Page 1: ......

Page 2: ...ystems and we make the following recommendations based on our successful on field experience GLOW POWER RECOMMENDATIONS ENGINE We recommend the following engine sizes for the RASCAL 80 2 STROKE 46 to 55 cu in 4 STROKE 53 to 65 cu in SIG carries O S Engines for the Rascal 80 and we suggest the following engines 2 Stroke O S 46AXII SIG Part OSMG0548 2 Stroke O S 55AX SIG Part OSMG0557 4 Stroke FS56 ...

Page 3: ...ortment Pin Vise for Small Dia Drill Bits Hobby Knife with Sharp 11 Blades Small Power Drill with Selection of Bits Dremel Tool with Selection of Sanding Grinding Bits Scissors Sandpaper Covering Iron Trim Seal Tool Masking Tape Paper Towels Alcohol and or Acetone for Epoxy Clean up COMPLETE KIT PARTS LIST The following is a complete list of all parts contained in this kit Before beginning assembl...

Page 4: ...f the iron using a thermometer If you do not have a thermometer you can find the correct temperature 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 section Observe the covering to see if any bubbles appear If bubbles appear the covering is getting too hot Turn down the temperature of the iron and...

Page 5: ...the plug to the end rib direct it through the round hole in the bottom surface of the wing panel By that time the servo itself should be next to the servo mount cutout and ready for mounting f Fit the servo into the servo mount in the wing panel note that the servo is positioned so that the servo arm is at the forward end toward the wing leading edge Take up any slack in the servo wire as you inse...

Page 6: ...Next assemble and install the aileron pushrods a Slide a short piece of Fuel Tubing onto the small end of the Metal R C Clevis Screw the Hex Nut on the Aileron Pushrod Wire all the way up to the end of the threads Then screw the metal clevis halfway onto the threaded end of the Aileron Pushrod Wire b Clip the metal clevis into the last hole in the nylon control horn Lay the other end of the pushro...

Page 7: ...e Axle Tighten the wheel collar set screw securely 7 Slide the wheel on the axle and test to make sure it spins freely on the axle If it does not turn freely drill out the plastic hub of the wheel with an 11 64 or 17 drill bit 8 Slide a second wheel collar onto the axle and up to the wheel Leave a small gap between it and the wheel so the wheel will turn freely and then tighten the wheel collar se...

Page 8: ...glued permanently onto the rear of the fuselage We suggest using slow curing epoxy glue for this job to allow time to position the stab accurately and make any final adjustments that might be needed Apply the glue to both sides and reset the stab in place Use pins to hold it in place Re check the alignment Wipe away any excess epoxy with rubbing alcohol and a soft paper towel Allow the glue to cur...

Page 9: ...will mount the Tailwheel Assembly in place on the lower rear end of the fuselage a Begin by placing the three armed rudder steering horn on the bottom of the rudder The front edge of the steering horn should be 1 4 back from the beveled edge of the rudder Mark the location of the two steering arm holes on the bottom edge of the rudder b Using a 5 64 drill bit drill a hole at each location you mark...

Page 10: ...le that fits your switch and mount using the screws supplied with your switch 23 Assemble and install the elevator pushrod a First slide a small piece of Fuel Tubing onto the small end of the Metal R C Clevis Next screw the Hex Nut that is on the Pushrod Wire all the way up to the end of the threads Then screw the metal clevis halfway onto the threads b Locate the pre cut upper pushrod exit hole f...

Page 11: ...tray Note that the rudder servo goes in the center servo opening with the output shaft to the rear of the fuselage Be sure to drill pilot holes through the plywood tray for the mounting servo mounting screws a Locate the pull pull hardware bag and lay out the parts b Thread an M3 nut and a metal clevis onto the brass rigging coupler Do this step four times c Slide one of the crimp tubes onto the n...

Page 12: ... 1 Fiberglass Cowling 4 M3 x 10mm Screws 1 Plywood Electric Motor Mount 1 Plywood Battery Box 1 Balsa Triangle Stock 4 M4 x 20mm Socket Head Bolts 4 M4 Flat Metal Washers 4 M4 x 16mm Socket Head Bolts 4 M4 Split Ring Lock Washers 4 M4 Blind Nuts 1 Hook Loop Velcro Straps 1 Electric Motor ESC Prop LiPo Battery not furnished 25 NOTE The mounting of the electric motor in the Rascal 80 assumes that yo...

Page 13: ...e pieces of triangle stock in all the corner joints inside the motor mount box 29 If you have not already re attached the X mount plate to the back of your motor do so now Then use 4 M4 x 16mm Socket Head Mounting Bolts and Lock Washers to bolt your motor in place on the plywood motor mount box 30 Install your ESC a Solder appropriate battery connectors not supplied to the battery leads of your ES...

Page 14: ...to Glue the plain side to the wood not the fuzzy side Epoxy glue works best for this step c Cut the hook strap in half and then glue one end of it to the other box side The hook side should be glued against the wood Epoxy glue works best for this step d Trial fit the assembled battery box inside the fuselage Note that there are slots in the plywood fuselage floor to accept the tabs on the bottom o...

Page 15: ...propeller not furnished and the included spinner optional on your motor Be sure to balance the propeller before installation 33 COOLING IS IMPORTANT With a fully cowled motor it is very important to make sure your power system is getting proper cooling Air flowing into the front of the cowling must have a place to exit the cowl In fact it s best to have more air exit area than inlet area to create...

Page 16: ... Stopper Assembly 1 Fuel Pick Up Weight clunk 1 Fuel Line Tubing for inside tank 1 Nylon Throttle Pushrod Tube 1 17 3 4 long Wire Throttle Pushrod with Z bend 1 Metal Pushrod Keeper with Set Screw and Hex Nuts 2 Zip ties You will also need to acquire these items not supplied 1 R C Engine and suitable Propeller 4 Socket Head Engine Mounting Bolts to fit engine 4 Lock Nuts for engine mounting bolts ...

Page 17: ...d location on the firewall This can be easily done by lining a pencil up with the throttle arm on the carburetor and marking the firewall 38 Set your engine aside and unbolt the engine mounts from the firewall Drill clearance holes for your engine mounting bolts all the way thru the engine mount beams at the four locations you marked in the previous step We recommend that you secure the engine mou...

Page 18: ...o and check the operation of the throttle pushrod Make adjustments as needed to get full range of carburetor travel You can adjust the overall length of the pushrod with the Pushrod Keeper Use the EPA End Point Adjustment feature of your transmitter to accurately dial in the desired amount of servo travel Also make sure there is no binding in the throttle linkage which could cause unnecessary batt...

Page 19: ...ve the cowl and tape two 1 2 by 4 strips of tag board to each side of the fuselage c Use a 1 16 bit to drill holes in the firewall for the cowl mounting screws through the tag board d Slide the cowl back into position with the four pieces of tag board on the outside of the cowl Carefully reposition the cowl and tape it in place with low tack masking tape Now drill the four cowl mounting holes thro...

Page 20: ...e window in place until the glue dries CONGRATULATIONS Your RASCAL 80 EG ARF is completely assembled However it is NOT ready for flight There are a few very critical pre flight tasks we must perform before flying These are extremely important and should be approached with patience and care BALANCE YOUR AIRPLANE This may be the single most important step in preparing your airplane for flight All ai...

Page 21: ...irplane making sure the surfaces are moving in the correct directions Also check each control linkage to be sure they are secure and that nothing is loose With all the controls checked make a range check with your radio system making sure everything is working perfectly After starting and warming up the engine taxi the RASCAL 80 out to the take off position on the flying field holding up elevator ...

Page 22: ...ion shall be to replace those parts of the kit proven to be defective or missing The user shall determine the suitability of the product for his or her intended use and shall assume all risk and liability in connection therewith JOIN THE AMA The governing body for radio control model airplanes in the United States is the ACADEMY OF MODEL AERONAUTICS commonly called the AMA The AMA SAFETY CODE prov...

Page 23: ... top hatch from the fuselage grasp the hatch near the top of the windshield and lift straight up to disengage the rear magnets When that happens and the bottom rear corner of the hatch clears the front fuselage former the hatch will lift back and off easily SIG MFG CO INC 401 S Front St Montezuma Iowa 50171 U S A Copyright 2016 SIG MFG CO INC Printed in Vietnam Also Available from SIG ...

Reviews: