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Top:    Front  Joiner  Assembly.    Bottom:  Rear 
Joiner  Assembly  - 

At  this  point,  the  joiners  have 

been  fastened  to  the  center  section  shear  webs.  
Notice  the  "open"  side  of  the  C-channel  is 
positioned against the face of the plywood web. 

With  the  center  panel  flat  on  the  table

  and  the 

assemblies  clamped  in  place,  make  certain  the 
joiners are parallel to each other and the table. 

 1    WING JOINER INSTALLATION    >  

 
 



Prepare the wing joiners exactly as described in the Sig directions.  Okay, maybe one exception:  If you don't 

have numbered drill bits (like me), you can use a 7/64" drill for the 4-40 bolts (the mounting bolts, not the set screws) 

and a 9/64" drill for the 6-32 bolts.  Slide the joiners into the C-channels, tighten the set screws, and set aside.  
 



Use the Shear Web Identification drawings (on the plans) to locate the internal shear webs A, B, and C.  Trial 

fit these internal webs between the main spars.  Trim as necessary; try for a snug fit. 

 



Trial fit the external shear webs D, E, and F against the aft faces of the main spar.  Actually, webs E and F 

should fit perfectly because you used these earlier to position the W-2 ribs.  Hold the webs in place and mark the 
spar locations using a pencil from the front side.  Now you can glue the internal webs to the external webs using the 

pencil lines for proper alignment.  Web A glues to web D, B glues to E, and C glues to F. 
 



Trial fit the three rear shear webs G, H, and J against the rear spars; trim to fit as necessary. 

 



Working  with  the  center  wing  panel  only,  position  the 

shear webs for the C-channels, front and rear.  No glue yet!  You 
might have to use tape to hold the rear web in place against the 
rear spars.  Now position your joiner assemblies on the webs.  I 

positioned my set screws heads-down, so they can be tightened 
through holes in the bottom of the wing.  They may be positioned 
on top, if you prefer.  Visually inspect the aluminum joiners to be 
certain they are parallel, then mark the webs (mechanical pencil) 
through the four mounting holes in each C-channel. 
 



Remove  the  joiner  assemblies  and  the  webs  from  the 

center  panel,  then  carefully  drill  the  webs  (3/32”  drill  bit)  at  the 
marks.  Bolt the C-channels to the webs using the high-quality hardware supplied with the kit: 
 

 

Each Front C-channel:  Four 4-40 x 1" Socket-Head Bolts, #4 Washers, and 4-40 Hex Nuts 

 

 

Each Rear C-channel:  Four 4-40 x 3/4" Socket-Head Bolts, #4 Washers, and 4-40 Hex Nuts 

 



You  will  have  to  notch  the  rear  spars  to  clear  the 

mounting  hardware used  on  the  rear  joiner.    Try  to  make  the 
notches as small as possible in order to maintain spar strength. 

 



Temporarily fit the shear webs in the outer wing panel, 

front and rear.  Again, you may have to tape the rear webs to 
the rear spars. 
 



Position  the  webs  with  the  joiner  assemblies  in  the 

center section, again without glue.  With the center section firm 
on your table (I used beanbags filled with lead shot), slide the 
outer panel into position.  Prop up the wingtip end of the outer 

panel  1-1/4"  off  the  table  for  proper  dihedral.    The  W-2  ribs 
should  fit  against  each  other  pretty  well  at  this  point,  and  the 
aluminum joiners should be resting against the faces of the plywood webs in the outer panel.  Carefully mark the 
webs through the joiner mounting holes. 

 

PAGE 4  

Summary of Contents for SUPER FLYIN' KING

Page 1: ...hes Wing Area 3380 square inches Length 96 inches Weight 36 pounds approximate Engine Range 60cc 80cc Gas Manufactured by BRUCE THARPE ENGINEERING 8622 E EVANS CREEK ROAD ROGUE RIVER OR 97537 phone 54...

Page 2: ...TABLE OF CONTENTS 0 1 2 0 3 4 5 4 4 2 22 0 2 0 0 0 6 0 7 1 0 2 2 8 9 6 7 5 2 1...

Page 3: ...is 2 move the web all along the rib to be sure it is straight along its entire length front to back Left Outer Wing Panel with all spars sub LE and servo lead tube in place Shear webs have yet to be...

Page 4: ...tick to hold the ends of the W 1 ribs but found out later it would have been smarter to use a sheet of 3 32 balsa maybe one or two inches wide Use only a few spots of glue so it can be removed later A...

Page 5: ...r webs for the C channels front and rear No glue yet You might have to use tape to hold the rear web in place against the rear spars Now position your joiner assemblies on the webs I positioned my set...

Page 6: ...er Three 6 32 x 3 4 Socket Head Bolts Six 6 Washers and Three 6 32 Hex Nuts Notice I used a washer under the bolt heads to keep the bolts from digging into the aluminum Now the webs are ready to be gl...

Page 7: ...ace of the wing Mark the sheeting as you go so you ll remember their uses later on Aileron sheeting Select another six sheets and slice four of them in half along their full length These eight 1 1 2 x...

Page 8: ...t to add extra wood for trimming curved corners later Center TE Sheeting no diagram This is to sheet the small wing section between the flaps in the center wing panel The final piece for the top shoul...

Page 9: ...he sub LE to match the airfoil contour in preparation for the leading edge sheeting Glue the top LE sheeting in place Again notice the sheeting should cover only half the width 3 8 of the main wing sp...

Page 10: ...build a flat wing panel once the remaining sheeting is glued in place your wing panel will be locked into its final state In case you re wondering the SFK doesn t have or need washout Try for zero wa...

Page 11: ...I had to sand nearly a full ply off to make the plate match the thickness of the balsa sheeting Check yours before gluing and take steps to be sure it will be flush with the trailing edge sheeting to...

Page 12: ...x 4 1 2 x 10 1 8 When dry flip the wing over upside down and pin it down this time with the top spar against the table Support the TE with a stick then take a long careful look at the panel from all...

Page 13: ...beveled to match the slope of the ribs Remember to make right and left ailerons and flaps Aileron Upside Down After sanding the front face of the aileron I decided that my hinges would need more mater...

Page 14: ...Drill 3 8 holes for the tail brace hard points as shown on the plans Add the dowels and the lite ply reinforcements When dry use your big sanding block to sand both sides of the stabilizer flat The el...

Page 15: ...the model s centerline so that the prop shaft ends up centered at the front of the model Cowling and Spinner This is where builders will need to do their greatest amount of innovating because of all t...

Page 16: ...n 6 0V and they are inexpensive You will need a variety of servo extension wires Y harnesses and possibly servo reversers I ve had real good luck with the products from Electrodynamics they use heavy...

Page 17: ...nition wire Carb Box as recommended by Cactus Aviation Only bottom of carb box is attached to F 1 the top and sides are removable Bottom of box has large hole for air intake Bellcrank is linked to cho...

Page 18: ...sets the tailwheel mount and the diagonal sticks on the bottom of the fuselage This picture is a little out of order because some upcoming steps are already done here The plywood plate in front of F 3...

Page 19: ...recess it into the fuselage as shown here If not the length of the rear mount will have to be trimmed The half moon cut at the front of the bottom sheet is optional it s purely for looks The big hole...

Page 20: ...o support false floors which of course I ve yet to finish Fuselage Top showing the cabin rear and laminated wing blocks glued in place Cabin Rear Wing Block Support Fuselage Top showing the position o...

Page 21: ...sheeting extends rearward slightly to overlap the front of the stabilizer Also notice that I added some balsa triangle stock to reinforce the tailwheel mount Above Hatch removed The hatch is held down...

Page 22: ...0 1 2 3 4 1 5 6 7 PHOTO 1 PHOTO 2 PHOTO 3 PHOTO 4...

Page 23: ...0 1 2 3 PHOTO 1 PHOTO 2 PHOTO 3 PHOTO 4...

Page 24: ...4 5 4 6 4 0 7 0 8 0 0 9 4 1 PHOTO 5 PHOTO 6 PHOTO 7 PHOTO 8 PHOTO 9...

Page 25: ...1 0 1 9 5 9 7 6 A PHOTO 10 PHOTO 11 PHOTO 12...

Page 26: ...ut there may be times in the future when nobody is available Of course some would argue that flying alone is unsafe too but I ll leave that up to you The eyelet is bolted to a 1 4 plywood plate and is...

Page 27: ...LERONS 1 5 8 UP 1 DOWN ELEVATOR 1 UP 1 DOWN RUDDER 1 1 2 LEFT 1 1 2 RIGHT RUDDER DEFLECTION WITH FULL AILERON 3 4 FLAP DEFLECTION FULL MOVEMENT 40 DOWN ELEVATOR WITH FULL FLAPS 7 16 0 1 2 3 0 0 4 5 6...

Page 28: ...0 12 3 4 5 6 7 6 8 3 9 7 9...

Page 29: ...ough call It might be okay without them but I didn t want to find out the hard way that I was wrong I added wires to mine which have held up well but there are sturdier and more expensive alternatives...

Page 30: ...ALL BALSA PARTS BAG 4 1 4 4 6 4 5 0 9 3 0 7 9 3 0 1 3 0 3 0 SMALL PLY HARDWOOD PARTS BAG 3 0 8 8 1 4 4 LITE PLY PARTS 3 8 7 1 2 4 3 2 4 9 2 3 9 2 4 9 2 1 2 5 9 1 2 4 2 9 2 2 6 2 2 4 9 2 0 2 6 5 2 0 2...

Page 31: ......

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