Multiplex RR FunGlider 26 4273 Instructions page 13

Important note
This model is not made of Styrofoam™, and it is not possible to glue the material using white glue, polyurethane or
epoxy; these adhesives only produce superficial joints, and simply break away under stress. Please be sure to use
medium-viscosity cyano-acrylate glue exclusively, preferably Zacki ELAPOR® # 59 2727, which is optimised specifically
for ELAPOR® particle foam. If you se Zacki ELAPOR® there is usually no need for cyano 'kicker' or activator. However,
if you wish to use a different adhesive which requires the use of activator, please note that these materials are injurious
to health, and should always be applied in the open air. Take care when handling all cyano-acrylate adhesives, as they
harden in seconds, so don't get them on your fingers or other parts of the body. We strongly recommend the use of
goggles to protect your eyes. Keep the adhesive out of the reach of children! For certain joints it is also possible to use
hot-melt adhesive; the instructions indicate where this is the case.
Working with Zacki ELAPOR®
Zacki ELAPOR® has been developed specifically for glued joints in our models which consist of moulded ELAPOR®
foam parts.
Please observe the following points in order to obtain perfect joints:
• We advise leaving joined parts for 24 hours to obtain maximum strength, particularly when the glued area is large.
• Activator should only be used for temporary, small-area joints ('tacking'). Spray a little activator on one surface, and
allow it to air-dry for about thirty seconds.
• To obtain maximum joint strength you should lightly sand the surface with 320-grit abrasive paper before applying glue.
• The adhesive will harden more quickly if you moisten one surface very slightly; in most cases activator (kicker) is then
not required. All you have to do is moisten the mating surface very lightly with a damp cloth or sponge.
Bent parts - actually don't exist. If you find that a component has taken up a curve, perhaps after being transported,
it is easy to straighten again. In this respect ELAPOR® behaves in a similar way to metal: bend the component
back slightly beyond the correct position, and the material will then spring back to its proper shape when released,
and maintain it. There are limits, however - don't overdo it!
Bent parts - really do exist. If you wish to paint your model, apply MPX Primer # 60 2700 to the surfaces, wiping it on
very lightly as if you were cleaning the model. Paint must always be applied thinly and evenly, otherwise the component
will warp. Then you really will have bent parts, and they will also be heavy and perhaps even unusable. We have found
that matt-finish paints produce the best visual effect.
We recommend using our "ELAPOR® Color" range of spray cans # 60 2701 - # 60 2712 (surfaces must be given a coat
of MULTIPrimer # 60 2700 beforehand).
Specification:
Wingspan
Overall length
All-up weight
Wing area
Wing loading
RC functions:
Ailerons, elevator, rudder, throttle
The Centre of Gravity should be located 57 mm aft of the root leading edge of the wing. The position is indicated by
small pimples on the underside of both wing roots.
1. Before starting construction
Check the contents of your kit before starting work on the
model. You will find Figs. 1 + 2 and the Parts List helpful
at this stage.
2. Installing the receiving system components
The positioning of the RC components has a minor but
useful effect on the model's Centre of Gravity. Final
balancing is carried out later by fitting trim ballast (metal
balls) in the holes in the fin.
Install the M-LINK receiver (RX) in the bottom of the
fuselage, in the empty space aft of the servos. Route the
aerial out of the cooling air exit opening, and tape it to the
fuselage. The Li-BATT FX 3/1-950 flight battery can be fixed
FunGlider
1300 mm
800 mm
min. 590 g
approx.20,5 dm² (FAI)
min. 28,9 g/dm²
to the fuselage side at the front, below the speed controller,
again using hook-and-loop tape. Group the cables together
neatly, and fix them to the fuselage side using hot-melt
adhesive or adhesive tape.
Fig. 3
Note: since the "grip" of the hook-and-loop tape is greater
than the adhesion between the sticky coating and the foam
surface, we recommend gluing the tape in place using hot-
melt adhesive or Zacki ELAPOR® (cyano-acrylate).
3. Folding propeller blades
Tighten the screws just to the point where there is no lost
motion (slop) in the propeller blades, but they still fold back
smoothly.
Fig. 4
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