Multiplex D-8671 Bauanleitung Seite 13

Front 3ecüon of fr|.a|!ga
Make up fuselage reinlorcement 65ircm two pans, gluedtogetherwith the
edgestiush. Ch;ckthem forfitand gtuethem in place' using slow-setting
ep;xy. Be careful not to detorm the fuselage here The distance between
the outside surfaces otthe wing root fairing must be the same at leading
edge and trailing edge, although any slight discrepancy can be made
good when lhe wings are fitted later.
Assemble the wing ioiner unit 66 as shown in the instructions supplied
with it. When joining the tubes please note that the right-hand wing blade
lies in front of the lett-hand blade The makings on the fuselage and the
blade boxes in the wing roots are designed lor this arrangement'
Note: Onlytighten theclamping screwwhen both wing bladesare plugged
in, otherwise you will squash the tubes, and the blades will no longer lit
inside. See page 7 @.
The side cheeks must be spaced at equaldistances lrom the centrepoint
of the joiner unit. On the ASW22 prototypes a dihedral angle oI3 5o per
wing has proved to be ideal. Forthis setting the cheeks need to be 65 m.m
apart. Securely epory them to the tubes Cut the slots and holes in the
wing root fairingswhere marked.lt is best hereto drillpilot holes and then
file them out to the tinal size. Please note that the markings are a guide
only; for technical reasons it is not possibleto ensure exact location olthe
bowdencabletubesand
joinerblade boxesinthewings Fitthewingjoiner
unit in the fuselage and check it torfit. Place it centrally, and score lines on
the tubeswhere they project out of the root lairings. The tubes should end
up flush with the outside surface ot the lairings. Remove the wing joiner
unit from the fuselage, saw otf the excess tube length, and sand the edges
flat. Take care nol to remove too much material. Replace the wing joiner
unit in the fuselage and plug the joiner blades into the sockets They
should project a distance of 180 m.m. on each side Mark this point on the
blades with a felt-tip pen. Tighten the clamping screw and fit the wings
onto the blades. Check each wing tor accuracy of the joint between the
wing root and the fuselage root fairing. The dihedralof the wings can also
be checked bysighting along thefuselage from the nose.lf necessary, tri m
the cut-ouls in the fuselage untilyou are satisfied. Fixthewingjoinerunit in
the tuselagewith a lew drops of 5-minute epory, and removethewing joi-
ner blades. Apply strips ot sellotape across the outside ends ofthejoiner
unit tubes. The joiner unit can now be securely epoxied in place, using
slow-setting eporythickened with glasstibres, micro-balloons, balsadust
orsimilar.lt is a good ideato glue one side first and allowthe resin lo cure
completely with the fuselage resting on that side. This prevents any resin
running onlo the wing joiner unit. Repeat forthe other side. Sand backthe
joiner tube ends until they are tlush with the wing root fairings
Plug the joiner blades into the joiner unit as far as the marked point, and
tighten the clamping screw. Drill the 3 m.m O hole in the tuselage lor the
lo;ating pin 68. Slidethe locating pin 68 aboutl5 m.m. intothe hole in the
tuselage. Fit the wing onto the fuselage, and check that the locating pin
lines up with the hole in the support block fitted in the wing. It necessary,
filethe hole outto one side. Thewing root fairing on thefuselage must line
up accurately with the rood end of the wing
Sealofithejointtace ofthewing root lairing inthe region ofthe locating pin
with film or sellotape, then apply s-minute epory to the hole in the pin
block. Fit the wing onto the luselage and push the locating pin into the
block. Leave the wing on the tuselage untilthe adhesive has set, checking
that no glue has been squeezed out ofthe hole, as this will stick the pinto
thefuselage. Removethewing from thefuselage and gluethe locating pin
into the other wing panel in the same manner.
Th e root lacing ribs 69 are su pplied oversize ; d rill th e h oles for the bowden
cables and steel joiner blades. Drill out the holes in the right-hand facing
rib to 6 m.m. @. The left-hand rib should be drilled 3 m.m O. The holes for
the locating pinsshould bedrilled 3 m.m.O Please note: in the case of the
staöoard wing panel the threaded coupler and quicklink for the aileron
and aiörake linkages have to beableto move inside the wing. This iswhy
the bowden cable outer tubes arc left 15 m.m. short of the wing root rib'
Carefully remove a little foam in these areas lo ensure lree movement for
the qulcklinks.
Temporarily attach the facing ribs 69 to the fuselage with a lew drops of
contact glue or strips of double-sided sellotape. These ribs have to be
released again later, so do not use too much adhesive or tape. Plug the
wing panels onto the joiner blades. The position olthewings in relation to
each other now has to be checked with gr€at care. To do this, stretch a
length of string from the right-hand tothe lelt-hand wingtip overthe entire
wingspan. Tape the string to the extreme front point ot the wingtips. The
wings are correctly positioned tor sweep angle when the distanc€ bet-
ween root leading edge and string, measured above the wing, is 33 m.m.
Measure at right-angles to the top surlace ot the'wing Now check the
distance from the trailing edge of the wingtips to the centreline ol the
rudd€r. Thb dir€ßion must bs idontical for oscfi wlng. f necossary, lhln
soacer strios can be fftted between ths facing rib and the wing pan€|, either
at the leading ortrailing edge, to conect any discrepancy Any gap wlrich
results is ol no importance, as it will be filled in during the next stag€ of
construction. See Page 7 @
The next step lsto fix permanentlythe wingjoinerbladesand facing ribs to
the wings. Mix up plenty of resin and pour it into the wing blad€ boxes.
Using athin wire rod, distributethe resinthoroughly roundthe insideofthe
boxes. Apply resin tothe root lace ol each wing. Fitthewing ontothe blade,
and press it firmly against the lacing rib temporarily lixed to the luselage.
Be sure to thread the bowden cablesthrough the holes in the facing rib on
the lett-hand wing. Apply relatively little resin arcund the wing joiner bla-
des, the locating pins and the bowden cables, and remove any excess
resin which is squeezed out of thejoint. This is easy to do ifyou maskout
the wing root surfaces beforehand with sellotape. Allowthe resin to cure'
and do not be impatient to unplug the wings!
When the resin is really hard, loosen the clamping screw and carefully
removethe wings. lf necessary, slip athin, sharp blade down intothejoint
between the facing ribs and theluselageto persuade the glue ortape to let
go. The facing ribs are now conectly located on the wing root Sand the
tacing ribstlush with thewing surlace, and fillanygap betlveen tacing ribs
and wing root with filler paste. Cut otlthe bowden cable outers ofthe lett-
hand wing flush with the root rib. tf your workshop does nol permil both
wingsto be litt€d simultaneously, it is quite feasible to fit onewing atatime,
but it is still essential to keep both wing joiner blades in the ioiner unit.
The next step is to prepare th e servo plates 70 and 72 to take you r servos. It
you are using Multiplex servos, you can take the dimensionsand positions
directly from the plan. Cut a hole torthe ON/OFFswitch in plate 72.lt is a
good ideato use quick-release servo mounts forthe aileron and airbrake
servos. The servos to be mounted on plate 72 (for elevator, rudderand te^
release) should be titted minus their rubber grommets, to minimize lt\-/
play between control surlace and servo.
lfyou are using a diflerent make olequipmenl. cutthe servomounting pla-
les to suit your servos. Fittheaileron and airbrake servos on plate 70 Plug
the wings onto the fuselage and establish the exact position of the servo
plate in thefuselage. ldeallythe steel pushrods torthe aileron and aiörake
linkages willpoint dircctlytothe servo output discs. Adjust the posilion of
thesewo plate carefullyand mark its position on the inside of the fuselage
with afelt-tip pen. Remove the servosagain. Betore gluing the servo plate
in place, roughen upthe gluing surface wellwith glasspap€r. Fix the servo
olate in place with a few drops of s-minute epoxy.
Measurethe Dosition olthelront former 71from the plan, and mark itsposi-
tion on the fuselage. Check that the former is a good fit Trim servo plate 72
and centretormerT3 for fit atthe same time. The slots in the servo platelit
into the tront and centre formers. Trim the formers until the parts fit
together accurately. Take particular care to avoid stretching or distorting
the fuselage with the tormers, otherwise the canopy floor willnot tit. Mark
the position ofthe formers and servo plate in the fus€lage, roughen up the
gluing surfaces, and lix the components in place with a tew drops ol
s-minute epory. Now check the following points before reinforcing the
joints: do the pushrod ends point directly to the servo output discs? Are
you sure the fuselage is not pushed out ot shape? Can you easily insl'|l
and remove the receiver and receiver battery? Vvhen you are salisll ----,
apply a lillet of slow-setling epoxy round thejoints, alter removing the ser-
vos. Thicken up the resin with micro-balloons or glass fibres
ll you intend installing a tow-release lor aero-towing, file oul a slot 3x5
m.m. in the right-hand fuselage wall where marked on the plan. The aero-
towcoupling (OrderNo.733155 - not included inthe kit) isglued centrally
overthe slot. when the epoxy hasset, glue in the bowden cabletubewhich
ooerates the tow release. lf necessary, support the tube away lrom lhe
fuselage side with scräp balsa. Fit the rslease servo This servo should
have an output power of at least 2.5 kg, in oder to guarantee reliable
operation of the releas€.
Canopy See page I @
The canopy frame is made up trom pads 75 - 78 Trim the floor 75 to fit in
the fuselage recess by bevelling thefrontand rearedges. Bevelthe bottom
edge of formers 76 and 77 to make them tit snugly. Bevelthe edges of the
f loor and formers to match the outside shape olthe f uselage. Tape lhe f loor
to the fuselage and glue the tormers to the canopy floor, taping them in
place until the glue has set. When dry, check the whole canopy floor
assembly for fit on the fuselage; it should be smaller all round than th€
outside line ot the fuselage by the thickness of the canopy moulding.
Check that the canopy latch tits in the fuselage in the position shown on
the olan. Drill a 3 m.m.O hole for the locking pin in the fusslge. Glue the
canopy latch 78 in place, taking care not to allow glue to jam up the
mechanism. The position of the locking pin is now marked on the canopy
't4