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Now glue the piece onto the cover plate. To do center the 2mm balsa piece on 
the center line with an overlap of +/- 4mm on the front of the cover plate. Put a 
small once folded paper in the front part between the cover plate and the balsa 
piece to get a slight angle. 

Tail-Boom 

You need a long ruler or square profile (ca. 1m) to correctly mount the tail-
boom! 

Put the fuselage alongside the ruler and 
slide the tail-boom through the openings in 
spar 1 and 2. Mark the positions of the 
spars on the boom with a pencil and take 
the boom out again. Sand the marked 
areas on the boom to get a proper glue 
joint later. Put the boom back in the 
fuselage and slide the 4mm plywood 
mounting gauge from the back onto the boom (the arrow on the gauge must 
point towards the bottom edge of 
the square profile/ruler). 

Now you can put the rudder into 
the slot of the tail boom. Make 
sure that the rudder is exact 
square to the table. Now the 
boom is perfectly aligned and can be 
glued to the fuselage. You best use 
Epoxy to do this. 

The next building step is the mount of 
the support pylon for the elevator. 
Take the 3 needed piecses (1 x 4mm 
plywood; 2 x 2mm balsa). There is an 
arrow on the plywood part which must point to the nose of 
your plane. Mark the nose pointing end with a pencil on top 
to know the nose facing end after gluing on the 2mm balsa parts (important for 
the correct angle of incidence). Now you can glue the balsa parts onto the 
plywood (Super Glue) and round the front- and backside with sanding paper. 

Summary of Contents for Fun-RES

Page 1: ...Version Description Date 0 1 Initial Draft 2016 0 8 First Update Dec 2016 0 9 some tech terms updated Dec 2016 MADRES Fun RES model F3B R E S Competition model...

Page 2: ...ly ca 310 350 g Wingspan 1992 mm Length 1067 mm On the following pages describe the building of the MADRES step by step as I recommend it If you need further guidance don t hesitate to contact us pers...

Page 3: ...trol horns 1mm 7 Tow hook 8 2 x M4 countersunk screw polyamide 9 2 x captive nut M4 10 2 x snake tube ca 5 cm 11 Magnet canopy lock 12 1 x washer M4 13 3 x plywood inlets 1 x elevator 2 x wing 14 2 x...

Page 4: ...4 3 Wooden parts...

Page 5: ...d not overlap them Now completely open up the milled openings in the main wing panel for the screw connection inlets which is best done with a sharp carpet knife Sand one side of the prepared carbon s...

Page 6: ...in wing panel Make sure that the joiner bag has good contact with the balsa left and right side as well as the carbon strips top and bottom Now clue the carbon strips as you have done with the main wi...

Page 7: ...ue the outer tips on the inner tips This is also best done with Epoxy To assure the correct dihedral put a 85mm balsa block under the end of the outer wing panel while curing For the spoiler linkage g...

Page 8: ...tor Now cut a piece in the length of the milled slot in the elevator from the 200 x 2 9 x 4 mm carbon strip and press it into the slot vertically and glue it in with thin super glue Next dry fit the 3...

Page 9: ...t you need the two sides of the fuselage as well as two 2 x 2mm balsa strips and the 2mm balsa parts with the cut out section of the wing underside Mark the positions of the spars with a pencil on the...

Page 10: ...alsa parts together before you can glue the whole balsa block on the fuselage Sand until you have a nice shape Dry fit the 2mm balsa cover plate and if needed slightly trim it to get a nice fit The co...

Page 11: ...slide the 4mm plywood mounting gauge from the back onto the boom the arrow on the gauge must point towards the bottom edge of the square profile ruler Now you can put the rudder into the slot of the t...

Page 12: ...and glue the pylon on the boom Epoxy The distance between the rudder and the trailing edge of the elevator should be approximately 10mm Slide the rudder into the slot and make sure that the two marks...

Page 13: ...Po 300mAh 2S Settings CoG 73 78mm behind the leading edge Deflections Elevator 8 4 mm Deflections Rudder as much as possible Brake 0 60 Degrees Tow hook position Approximately CoG I wish you a lot of...

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