Multiplex TwinStar II 73 3061 Instrucciones De Montaje página 5

Floats kit e.g. for TwinStar II
These floats are suitable for models with a maximum airframe weight of around 1600 g. Of course, the floats are normally
intended for use on water, but flying from snow is a very attractive alternative.
These instructions assume that the floats are to be fitted to the TwinStar II model aeroplane, but at the appropriate point we also
provide notes on installing them on other comparable models. If you intend fitting the floats to the TwinStar II, we recommend
installing the MULTIPLEX "TwinStar II brushless" power set, # 33 2621 or # 33 3621 (with battery).
Important note: the floats are made of ELAPOR® and not Styrofoam™ !
Adhesives:
Use Zacki Elapor, # 59 2727 (cyano-acrylate adhesive, 'cyano') - do not use Styrofoam ('foam-safe') cyano! Epoxy and
polyurethane-based glues produce an apparently strong joint, but the hard adhesive parts company from the surface under
load, i.e. adhesion is only superficial. A useful alternative is hot-melt adhesive.
Please take care when handling cyano-acrylate adhesives. These materials 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.
Examine your kit carefully!
MULTIPLEX model kits are subject to constant quality checks throughout the production process, and we sincerely hope that you
are satisfied with the contents of your kit. However, we would ask you to check all the parts before you start construction, as we
cannot exchange components which you have already modified. If you find any part is not acceptable for any reason, we will
readily correct or exchange it once we have examined it. Just send the component to our Model Department, but be sure to
include proof of purchase (receipt) and the completed complaints form (can be downloaded from the Service area of the MPX
website). We are constantly working on improvements to our models, and for this reason we must 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.
Please check the contents of your kit, referring to the Parts List and Fig. 1.
Assembly:
Drill two 1.8 mm Ø holes in each of the rectangular support
tubes 10 and the "flat undercarriage supports" 11, as shown in
Figs. 2a + 2b, and glue them to the floats 2 using cyano, as
shown in Fig. 3.
Caution: angle the floats away from your body, as any excess
cyano may squirt out of the joints!
Prepare the fuselage to accept the floats as shown in Figs. 4a
+ 4b, using the front float bracket 3 as a "template": mark the
mounting points, pierce the holes using a small screwdriver,
and screw in the plastic bushes 12 as far as they will go using
a cross-point screwdriver. Figs. 5 + 6
Screw the front and rear float brackets 3 / 4 to the front and rear
supports 10 / 11 on the floats 2 / 2 using the screws 14. Note
that the P-clips 13 must be fitted on the wire of the "rear float
bracket" 4. Remember to fit the washers 15 when fitting the
screws. Figs. 7 + 8
Fix the front float bracket to the fuselage using the screws 14,
fitting them in the plastic bushes previously installed. Attach
the rear float bracket 4 to the rear bushes in the fuselage using
the P-clips 13, screws 14 and washers 15. Figs. 9 + 10
Installing the floats on similar models
To set the floats at the correct angle we need the model's
datum line, which is the "zero-line" (a line parallel with the
tailplane). When compared with the straight line on the
underside of the floats aft of the step, the difference in height
should be 30 - 35 mm less at the rear than at the front. Please
refer to Fig. 11 here.
When the model is standing in its take-off attitude, the float
step should be located vertically below the model's Centre of
Gravity (CG). At the "take-off attitude" the angle of attack of the
wing is around 7°.
GB
(Caution! this is not the same as the longitudinal dihedral; this
is around 1 - 2° on these models.)
The water rudder function
The purpose of the water rudder is to allow the model to be
steered on the water. Many models also require greater vertical
stabiliser area, but the water rudder carries out the same
function.
The additional vertical area is required because the floats al-
ter the model's lateral area distribution. If you wish to fly the
aeroplane on snow using the floats, the water rudder must
still be fitted.
The TwinStar II does not necessarily need this additional fin
area, as the motors can be used to provide directional control,
although this does require a radio control system which
features the appropriate mixers. In this case the system has to
be set up in such a way that the throttle signal is present at two
channels, and is mixed with the rudder channel; we
recommend that a switch should be assigned to the mixer.
When a right rudder command is given, the left-hand motor
must generate more thrust than the right-hand motor. Fig. 18
Recommendation for rudder - throttle mixer ratios for
steering the model on water using differential motor thrust.
The mixer inputs for each motor (throttle) are 100% throttle
and around 50% rudder.
For example, if you give a full "right rudder" command, the
power of the right-hand motor should be reduced by 50%,
while the power of the left-hand motor is increased by 50%.
If your radio control system cannot provide the mixer outlined
above, you must make a water rudder.
The water rudder is made from the DEPRON™ plate 6 and the
length of wire 5. First use a pair of pliers to bend the wire to the
shapes shown in the drawing. Fig. 12
Note that the wire is longer than required. Lay the prepared
# 73 3061
5