Multiplex MENTOR Instrucciones De Montaje página 5

Floats kit e.g. for Mentor
These floats are suitable for models with a maximum weight of about 2500 g in the land-based version. Of course, the floats are
normally intended for flying from water, but they also work very well on snow.
These instructions refer to the use of the floats in conjunction with the Mentor model aircraft. However, they also include notes on
using them with other models.
Important note: the floats are made of ELAPOR®, and not Styrofoam™!
Adhesives:
Please use our Zacki ELAPOR (cyano-acrylate, "cyano", "CA"), # 59 2727 - don't use "foam-safe cyano"! Epoxy and polyurethane
adhesives produce what appear to be strong joints, but the hard glue breaks away from the components under load, i.e. the
strength is only superficial. Alternatively you can use hot-melt adhesive (glue-gun).
Please take care when working with any type of cyano-acrylate adhesive, as these materials cure in seconds. Don't
allow the glue to contact your fingers or any other part of your body. Always wear goggles to protect your eyes! Keep out
of the reach of children!
Examine your kit carefully!
MULTIPLEX model kits are subject to constant quality checks throughout the production process, and we sincerely hope that you
are completely satisfied with the contents of your kit. However, we do ask you to check all the parts (referring to the Parts List)
before you start construction, as we cannot exchange components which you have already modified. If you consider any part to
be unacceptable, we will readily correct or exchange it once we have examined it. Just send the component to our Model
Department; please be sure to include the purchase receipt and the completed returns form (available for downloading from the
MPX website under Service).
We are constantly working on improving our models, and for this reason we are obliged to reserve the right to change the kit
contents in terms of shape or dimensions of parts, technology, materials and fittings, without prior notification. Please understand
that we cannot entertain claims against us if the kit contents do not agree in every respect with the instructions and the
illustrations.
Check the contents of the kit against the Parts List and Fig. 2
Assembly:
Drill two 1.5 mm Ø holes in each of the spreader plates 10,
positioned as shown in Fig. 3, and glue them in the recesses
in the floats 2 using cyano.
Caution:
Hold the parts facing away from you! Excess adhesive could
be squirted out of the joints.
If your model is fitted with a "land undercarriage", unscrew it
from the fuselage at this stage. Screw both "float undercarriage
units" to the float bodies using the screws 13.
Figs. 5 + 6.
Attach the undercarriage support plate 11 to the rear "float
undercarriage" 2 using the screws 12.
Fig. 7
Position the float assembly on the fuselage and mark the
position of the undercarriage support plate 11 on the underside.
Carefully cut away a slice of foam about 6 mm thick at the
marked point, using a sharp balsa knife.
Fig. 8
Glue the undercarriage support plate 11 in the recess you
have just cut.
Fig. 9
Now screw the float assembly to the fuselage: use the "normal"
undercarriage screws at the front (Fig. 10) and the screws 12
at the rear.
Fig. 11
GB
Installing the floats on similar models
Take as your reference line the "datum line" - a line parallel to
the tailplane. The second reference line is the underside of
the floats aft of the step. Now measure between the two
reference lines at the step position and the rear of the floats:
the vertical difference between the front and rear lines should
be 35 mm. See also Fig. 14.
The float step should be located vertically below the model's
Centre of Gravity (CG) when the model is in the take-off attitude.
Note that the angle of attack of the wing is about 7° at the "take-
off attitude".
(Caution: this is not the same as the longitudinal dihedral,
which is around 1 - 1.5° with models of this type.)
Function of the water rudder
The water rudder is absolutely essential, both for steering on
the water and for flying.
The additional rudder area is necessary in the air because the
floats alter the model's lateral area distribution. If you wish to
fly the float-equipped model from snow (which, incidentally,
works very well, although it depends on the quality of the snow),
the water rudder must still be left in place.
Making the water rudder
The water rudder is made from the length of wire 4 and the
DEPRON™ plate 5 - see Figs. 12 + 13. First bend the wire to
the shape shown in the full-size drawing, using a pair of pliers.
Note that the wire is longer than required.
Lay the shaped wire component on the DEPRON sheet 5, and
press it down using a piece of hardwood or similar to mark the
shape on the foam. Cut out the water rudder using a sharp
balsa knife, and fit the panel inside the wire frame. Attach it to
# 73 3062
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