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Boulton-Paul Defiant Construction Manual 
 

Version 2.0 

 

 

 Page 5 

 

 

Cut  4  each  1/2

  lengths  and  4  each  1/4

  lengths  of  1/16  aluminum  or 

plastic tubing (not included). 

 

 

Cut a length of 1/16 music wire to 10-

/ ”

 long. B

e d up o e e d  / ”. 

Slip on the tubing lengths 

/ ”

-

/ ”

-

/ ” as sho .

 

 

 

Bend  the  other  end  of  the  wire 

/ ” as sho . Make a left a d a  ight 

side. 

 

 

Glue the tu e  ea i gs to the  i s as sho . Do ’t glue the  ea i gs to 

the music wire! 

 

Summary of Contents for Boulton Paul Defiant Mk I

Page 1: ...Boulton Paul Defiant Mk I Manual Version 2 1 January 2011 Scale 1 15 Wingspan 31 3 Inches Area 150 Square Inches Power 2408 Brushless Original Design by David Collins...

Page 2: ...int reinforcement Self tapping Screws Cowl mounting 1 4 Square Hardwood Cowl mounting TRIM THE PLASTIC PARTS Turret tall Cowl f om spinner ring to rear of cowl The cowl should overlap the fuselage a o...

Page 3: ...edge Glue the ribs and spar to the sheeting Use a square to get the ribs perpendicular to the spar and push the ribs up against the leading edge Glue the rib doublers W5A to each side of the center ri...

Page 4: ...lsa st ip to ea h side of the slot Pi s i the edge of the sheeti g help to alig the spa s The e ill e a gap etween them When the outer panels are finished pin the center section down followed by the o...

Page 5: ...4 lengths of 1 16 aluminum or plastic tubing not included Cut a length of 1 16 music wire to 10 long Be d up o e e d Slip on the tubing lengths as sho Bend the other end of the wire as sho Make a left...

Page 6: ...of tu i g o to the aile o Do t glue any of the tubes to the wire Sheet the top of the e te se tio ith alsa a pape pu h makes neat holes for the aileron horn wire to protrude Sheet the oute pa els ith...

Page 7: ...a st ip of alsa Glue the strip to the aileron using the wire as a guide as shown Bevel the strip and notch for the aileron wire Hi ge the aile o s to the i g usi g st ips of CA hi ge Glue the wing do...

Page 8: ...0 Page 8 Glue 1 4 balsa triangle to the aft bottom edges of the fuselage sides and bevel the tail ends as shown Make up the battery box motor mount Glue s ap t ia gle to the i side o e s of the fi e a...

Page 9: ...iant Construction Manual Version 2 0 Page 9 Glue the other fuselage side in place Glue F1 to the battery box keeping it square Glue the battery box F1 into the fuselage Glue F6 flush to the top of the...

Page 10: ...Glue scrap balsa to the underside of F6 to support it Glue F9 in place Laminate two F14 pieces together and glue in place Glue some scrap 1 4 triangle into the inside corners for reinforcement Glue F...

Page 11: ...g the fit the wing to the fuselage Square up the wing then drill and tap the hole for a 4 40 mounting bolt Glue F3 to the front edge of F6 Glue 1 8 x 1 4 balsa strip in the former slots as shown Glue...

Page 12: ...n See the pattern on the plan Glue the sheet to the fuselage sides a d et the outside Tape the wet sheets in place and let dry When they are dry trim and glue the sheets in place Trim the sheeting usi...

Page 13: ...Wet ap a d glue the sheeti g to the otto of the ose section Install the elevator pushrod Sheet the bottom of the fuselage ith alsa Plane and sand the corners to a nice rounded shape Laminate the tail...

Page 14: ...Remove the mount from the motor and attach it to the firewall centering it on the hole Mount the motor and cowl using small screws into scrap hardwood blocks as shown Glue the wing fillets to the fus...

Page 15: ...rvo and horn NOTE The tu et pa ts ha e ee e ised Use o l the tu et pa ts o the laser cut sheet as shown here These revisions will be incorporated in subsequent production runs Glue the turret base par...

Page 16: ...urret is finished in place on the fuselage Note that this photo does not show the revised turret base Glue the scoop parts S1 S2 and S3 S4 together the smaller scoop goes under the nose Glue the two F...

Page 17: ...Boulton Paul Defiant Construction Manual Version 2 0 Page 17...

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