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SIG SIGRC80 Rascal C, Instruction Book, Page: 3 / 31

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SIG SIGRC80 Rascal C Instruction Book Download Page 3

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Sheet Balsa

2 1/16"x3"x36" Balsa Sheet (Fuselage)

Hardwood

1 3/16"x3/16"x3" Elevator Joiner 

(Spruce)

2 5/32" Dia. x1-1/4" Wing Dowels

Shaped Balsa

2 24" Long Shaped Leading Edge

1 2" Long Shaped Wing Center 

Section Block

7 1/16"x1/4"x1" Tapered T.E. 

Stock (Shims)

Hardware

8 2-56x3/8" Slotted Bolts (Wheel Pant 

Mounts & Motor Mount)

8 2-56 Blind Nuts (Wheel Pants & 

Motor Mount)

1 8-32x1" Nylon Wing Bolt

4 1/16" Dia. x1/4" Brass 

Tube (Pushrods)

2 3/32" Dia. x3" Aluminum Tube 

(Fuselage Cabin Braces)

1 1/16" Dia. x1/2" Aluminum Tube 

(Tail Skid Brace)

1 5/16" Dia. x1/4" Drilled Wing 

Dowel

2 3/32" Landing Gear Clips

2 #2x3/8" Sheet Metal Screws (Hatch 

Mount)

2 Gem #1 Paper Clips (P/R 

Connectors)

Pre-Bent Music Wire

1 3/32" Dia. Pre-Bent Main Gear Wire

1 1/32" Dia. Pre-Bent Tail Skid

Plastic Parts

1 Set of .030 Molded Wheel Pants

1 .008x3"x17" Clear Plastic For 

Windshield & Side Windows

Miscellaneous

3 .031x18" Steel Cable (Throttle, Rudder 

& Elevator)

3 .073 O.D.x18" Nylon Tube (Throttle, 

Rudder & Elevator)

1 2-1/2"x4-1/4" Card Stock 

(Main Gear Fairings)

1 1"x4-1/4" Velcro (Battery 

Hold Down)

1 19"x25" Full Size Plan Sheet 1

1 19"x25" Full Size Plan Sheet 2

1 19"x25" Full Size Plan Sheet 3

1 9-1/2"x25" Full Size Plan 

Sheet 4

1 5"x13-1/2" Decal Sheet

1 Printed Instrument Panel

1 Photo-Illustrated Instruction 

Book

 
 

Items Needed To Complete Kit

 

Electric Version

 

Speed 400 Motor and Gearbox - Maxx #ACC347  

7 or 8-cell 600 AE Battery Pack with Connectors  

Speed Controller for 7-8 Cells  

Battery Pack Charger - A/C-D/C Type  

Battery Connectors, such as Sermos  

16 gauge red & white hook-up wire  

Electric Motor Mount - Maxx #ACC314 

 

Glow Engine Version

 

.049 - .07 R/C Engine  

Sullivan 2 ounce Slant Fuel Tank, #SS-2 436  

Third Servo for Throttle Control  

250 - 350 maH Airborne Battery Pack  

Dave Brown #0506 Motor Mount  

Small Diameter Fuel Tubing 

 

Common To Both Versons

 

Radio System with small micro or mini servos and a small receiver  

Covering Material - Two 6 rolls typical for multi-color scheme  

Williams Bros. 1-7/8 diameter wheels - #150  

Typical Hobby Tools: Hobby knife with sharp blades, Dremel Tool and bits, selection of drill bits, razor blades, 
sandpaper, and sanding blocks of various sizes, pliers, good soldering iron and solder, etc. 

Summary of Contents for SIGRC80 Rascal C

Page 1: ...a paper route could afford We fondly recall many afternoons building these models with other aviation minded friends all of us wiping the excess Ambroid glue on our blue jeans to the chagrin of our moms Those afternoon building sessions were soon followed by flying these great little airplanes under the streetlights in the early evening Wonderful memories of a simpler time We never forgot the fun ...

Page 2: ...ish Even though the original Rascal didn t have wheel pants we couldn t resist adding them to this design for a more rakish look Heck we even made sure the tailwheel tailskid has a matching wheel pant Finally your R C Rascal is loaded with the best hardware and most innovative parts available giving you a truly lightweight airplane that will give you many many enjoyable flights It is important tha...

Page 3: ...Stock Main Gear Fairings 1 1 x4 1 4 Velcro Battery Hold Down 1 19 x25 Full Size Plan Sheet 1 1 19 x25 Full Size Plan Sheet 2 1 19 x25 Full Size Plan Sheet 3 1 9 1 2 x25 Full Size Plan Sheet 4 1 5 x13 1 2 Decal Sheet 1 Printed Instrument Panel 1 Photo Illustrated Instruction Book Items Needed To Complete Kit Electric Version Speed 400 Motor and Gearbox Maxx ACC347 7 or 8 cell 600 AE Battery Pack wi...

Page 4: ... ...

Page 5: ...ally using SIG Thick CA glue However there are certain areas of construction that may require different adhesives We will call these out in the appropriate instruction steps You may notice that some laser cut parts have small notches along their edges This is done on purpose to hold the part in the sheet Use a hobby knife with a sharp 11 blade to remove the parts as needed With scissors remove the...

Page 6: ...tom of the leading edge of the cabin In order to make this piece fit flat to the fuselage side you must relieve it slightly to fit flat against the fuselage doubler forward of F 5 Use a sanding block to do this and glue the piece in place 3 Cut fit and glue the two 1 8 square balsa uprights in place that fit against the back face of F 6 and the front face of F 7 Hold the actual formers in place to...

Page 7: ...k the mount s hole locations on the firewall with a pencil Use a 1 8 dia drill bit to drill the four mounting holes through the firewall Insert the four supplied 2 56 blind mounting nuts into the back face of the firewall and press firmly in place Use a small amount of thick CA glue around the edges of the blind nuts to secure them 10 Mount the engine to the motor mount using 2 56 bolts and locknu...

Page 8: ... balsa longerons Be sure to install this former squarely making sure it is accurately in place 16 Glue former F 3 in place at angle shown Use the F 3 ANGLE GUIDE a guide This angle is important because it dictates the slope of the nose Also note that when the wire landing gear is in place between the fuselage sides its top edge is immediately in front of F 3 Electric Version Glue former F 1 in pla...

Page 9: ...his doubler in place match the bottom curvature of the nose Lightly sand the doubler and fuselage sides smooth 21 Glow Version Only Use your Dremel Tool and drum sander bit to begin clearing out the top front sheeting to accept the engine and mount back to the firewall As shown in the photo and on the plans the sheeting is cleared enough to cleanly accept the engine and its muffler with approximat...

Page 10: ...age longerons just ahead of F 5 The front lip of the hatch stiffener has the rounded ends The front of the hatch fits under the plywood landing gear brace and the rear of the hatch rests on the spruce hatch screw plate just installed Start by positioning the ply hatch brace in place in the bottom of the fuselage rounded ends beneath the ply landing gear brace and the rear with the screw holes dire...

Page 11: ...es in place on the top of the fuselage with the lasered hole to the rear Hold the sheeting firmly in place to W 8 and look at the hole at the rear of the sheet It should be centered over the hole in the wing bolt mounting plate If the hole in the sheet is too far back trim the front of the sheet a little to move the hole forward Use a little piece of waxed paper directly beneath W 8 to keep glue a...

Page 12: ...shape to the fuselage sides at the front and its top surface smooth with the leading edge of the center section Don t worry about final sanding at this stage just sand the parts to match Remove the completed center section and set it aside for wing assembly 34 Without using glue fit former F 7 in place at the rear of the fuselage use a little tape or a clamp to keep the fuselage sides firmly again...

Page 13: ...ach joint making sure the tube is secure use glue sparingly Use scissors to reach inside the servo compartment to trim the tubes to a length of about 1 ahead of the front of F 6 Use your sanding block to lightly sand the fuselage sides where the tubes exit 36 Use the 1 16 x1 8 balsa stock to now cut and glue in place the top and bottom cross braces at fuselage stations A and B on your plans Cut th...

Page 14: ...ge of the spar all the way out to the outer W 8 rib location do not apply glue past this point Accurately position the spar in place making sure it is 90 deg upright Pin in place 43 Note that the wing root ribs are lasered into two parts W 2 and W 2A Separate these parts with a razor blade Position the already built wing center section in place against the inboard edge of the bottom wing panel she...

Page 15: ...lock over exposed ribs spars etc it is possible to mistakenly sand these parts perhaps changing the airfoil or causing dips in the top sheeting It is easy to protect these parts by simply using masking tape to cover them before sanding Once the panel is sanded remove the tape The result will be no damage to the ribs 48a Pin the wing panels securely to your building board as shown use pieces of scr...

Page 16: ... identical top and bottom curvatures Take your time making sure the complete top and bottom of each panel is sanded smooth Do not sand the tips and the trailing edges too finely As shown after sanding these should be typically a uniform 1 16 3 32 thick The leading edges of both panels can now be sanded to uniform shape We used a small razor plane to take the leading edges down more quickly followe...

Page 17: ...Lightly sand the glue seams smooth The stab parts are now ready for assembly Because CA glue is too quick for this step we suggest a slower adhesive such as SIG BOND Apply glue to one side of one of the stabilizer cap sheets and position it in place against the S 1 S 2 core Use pins or weights to keep this assembly flat against your work surface After a little while apply glue to the remaining cap...

Page 18: ...when the wheel pant was finished we painted this half wheel flat black simulating a tire 60a The tailwheel wire is now mounted to the rudder As shown the rudder end of the tailskid wire is glued into the bottom leading edge of the rudder From the contents of your kit locate the 1 2 length of 1 16 OD aluminum tubing This length of tubing will be glued into the rudder to receive and hold the top par...

Page 19: ...sand the whole thing smooth Done right these fillets look professional and are very light Landing Gear And Wheel Pants 65a Remove the two screws holding the bottom access hatch in place on the fuselage Use your hobby knife to carefully remove the tack glued plywood landing gear brace from the fuselage b From your kit contents locate the four 4 plastic wheel pant halves four 2 56 x1 2 bolts four 2 ...

Page 20: ...ing the plywood pant mount in place against the inside surface of the wheel pant half Let the glue cure before removing the bolts 69a The outer pant halves can be glued in place to their corresponding inner halves Apply thick CA glue around the edge of the inner pant half and carefully align and hold it in place to the outer half Have a few small pieces of masking tape handy to help hold everythin...

Page 21: ...ions to personalize your model The R C Rascal lends itself to all kinds of covering possibilities The open framework of the fuselage and wings looks really nice when covered with transparent covering films As you can see from the models presented in this manual and on the box art we used this look to good advantage on our own airplanes Realistically the R C Rascal could be covered in a variety of ...

Page 22: ...e the tubing permanently in place use thick CA glue to glue it to the backside of the firewall against the bottom of F 3 and to the rear face of F 5 Fuel Tank Installation Glow Engine Version With the throttle tubing in place and the engine compartment fuelproofed the fuel tank can now be installed Back in Step 18 of the FUSELAGE construction section you assembled the fuel tank and cut two pieces ...

Page 23: ...nges The technique is the same Apply 3 or 4 drops of thin CA glue to each hinge location on one side and then do the same thing to the opposite sides of the hinges Allow at least 15 minutes before flexing the rudder Any excess glue that may have gotten onto the covering can be removed with CA debonder Landing Gear Fairings As you can see in the photographs of our R C Rascal models the landing gear...

Page 24: ... of the cockpit area and also add a believable look to the pilot s office From your kit contents locate the two 3 32 dia x3 aluminum tubes These have been cut oversize and must be trimmed to length Confirm the exact cutting length for these tubes by first using scrap pieces of 1 16 balsa sticks held in place Once you have the exact size use a single edge razor blade to cut the tubes to length Sand...

Page 25: ...l to adhere it in place The top fuselage wing fairing is now covered Be sure to use low heat and avoid prolonged contact with the windshield itself Decal Application With the model now covered you can add the decals These are not die cut and need to be cut from the sheet using a sharp 11 blade and your hobby knife In order to avoid harming the decal and to provide you with the ability to position ...

Page 26: ...ll the speed controller s On Off switch into the left side of the fuselage using the slot and screw holes made earlier The speed controller is now placed into the tank compartment behind the firewall do not wrap it in anything Connect the rudder and elevator servos to the appropriate receiver receptacles Connect the speed controllers receiver connector to the appropriate throttle channel receptacl...

Page 27: ...ed at the control surface end of the pushrods As shown the wire connectors that attach to the servos are the same as the flying surface connectors except they have a simple V bent into them behind the Z bend This V bend allows surface adjustments to be made without having to use the radio Open the V bend a little to adjust the surface in one direction or close the bend a little to adjust the surfa...

Page 28: ...e transmitter Last be sure to secure the servo output arms in place with their locking screws Recommended Initial Control Movements RUDDER 3 8 Right 3 8 Left ELEVATORS 1 4 Up 1 4 Down Balance As shown on the plans the Center of Balance or Center of Gravity for both versions of the R C Rascal is located directly on the wing spar Before attempting to balance the model remember the following WHEN BAL...

Page 29: ...st the stall characteristics of the airplane Our R C Rascals have demonstrated very straightforward shallow stalls with almost instant recovery If you built the glow engine version with a third channel for throttle you ll quickly find that the little Norvel 061 makes a lot of power We fly our Norvel powered Rascals at about 1 3 to 1 2 throttle saving full throttle for climb outs and mild aerobatic...

Page 30: ...and Throttle Note These weights were obtained by building the actual kit and using the covering techniques radio equipment and batteries specified in this manual The finished weight of your model may be different if you use heavier or lighter equipment and or covering and finishing techniques The above weight of the electric version includes an 8 cell KR 600AE battery pack weighing 5 6 ounces with...

Page 31: ...urance in case your R C model should ever cause serious property damage or personal injury to someone else For more information contact ACADEMY OF MODEL AERONAUTICS 5151 East Memorial Drive Muncie IN 47302 Telephone 317 287 1256 Customer Service SIG MFG CO is totally committed to your success in both building and flying the RASCAL design Should you encounter any problem building this kit or discov...

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