SpeedWing 250 Mk II Assembly Instructions Manual Download Page 3

1.  Find the three parts of the motor mount.  You can 
smooth the edges of the motor mount doublers if 
you’d like.

2.  Use 5-minute epoxy to glue the ply doublers to the 
motor mount.  Make sure that you align the doublers 
correctly and hold them in place until the epoxy dries.

3.  Now place the mount along one wing core and 
mark where the ply doublers come in contact with the 
foam.  This foam will have to be cut from the cores so 
that the motor mount can be glued 

fl

 ush to the cores.

 

4.  Now use a sharp X-acto blade and cut the foam 
along the marks you have made.

5.  Glue the mount to one wing core with 5-minute 
epoxy.  Use just enough epoxy to cover the root of the 
wing.  To help hold the wing in place, use a couple of 
strips of masking tape.

6.  Glue the remaining wing to the motor mount using 
epoxy.  Again, use masking tape to help hold the wing 
to the motor mount while the glue dries.  Make sure 
the wing cores are in perfect alignment with the motor 
mount.

Summary of Contents for 250 Mk II

Page 1: ...Wing Loading 6 4 oz sq ft Motor Johnson 250 two incl w props RADIO EQUIPMENT NEEDED 2 Micro Servos HS 55 or equivalent Micro Receiver GWS 4P or Berg MS4P Micro Speed Control 10 amp 2 Cell 1200 ETEC or...

Page 2: ...nd tools needed to complete the SpeedWing 250 Mk II Supplies Industrial Strength Velcro Tape for battery attachment Pen 5 minute epoxy Thin CA Superglue Medium CA CA Accelerator 150 Grit Sand Paper or...

Page 3: ...m This foam will have to be cut from the cores so that the motor mount can be glued flush to the cores 4 Now use a sharp X acto blade and cut the foam along the marks you have made 5 Glue the mount to...

Page 4: ...the CF flats to the top of the wing There are two slots in the motor mount the CF Flat goes through the rear slot 3 Use a pen to mark where you will be burying the CF Flat Remove the CF Flat 4 Using...

Page 5: ...edge 10 Now put a piece of wax paper on your flat work surface Place the trailing edge of the wing flat against the work surface and glue the CF Flat to the trailing edge with Thin CA You can use a sm...

Page 6: ...ron the left servo arm should move forward and the right servo arm should move backwards 3 Make a shallow slice in the foam between the radio bays You will later bury the servo and speed control wires...

Page 7: ...like to use either Solarfilm or Econokote to cover with Both are low temp coverings and are easy to work with If you don t have experience or the tools to cover with iron on films colored covering ta...

Page 8: ...side then left Alternate shrinking between the top and bottom of the wing so that the covering shrinks evenly 7 Cover the elevons starting on the bottom side of the elevons I like to use the same colo...

Page 9: ...1 8 from the tip of the wing 11 Peel back the top of the graphic 12 Cut the transfer backing off 13 Using a plastic squeegee or a credit card press the graphic down working your way from the center of...

Page 10: ...e elevon up and cut the graphic along the hinge line using a sharp X acto or single edge blade 19 Carefully peel the backing off of the top of the graphic Be sure to pull at an angle and horizontal to...

Page 11: ...iplets Now make a mark from the tip of the tiplet to the back You will glue the tiplet to the wing with this line on the center line of the air foil Sand the tiplet where it will be glued to the wing...

Page 12: ...tors on the servo horn I use the second hole from the bottom of the servo horn 10 Make a Z Bend in one end of each push rod 11 Attach the Z Bend end of the push rod to the top hole in the elevon contr...

Page 13: ...located at 5 1 2 from the nose Make a mark 5 1 2 from the nose of the wing and attach the battery so that it balances on this mark Control Throws Measure the control throws at the widest part of the...

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