ZAGI ZAGI-DC Manual de usuario
Airfoil Zagi 101.3
Flying Weight 17.5 oz
Wing span 48"
Wing area 2.03 sq ft
Wing loading 8.5 oz sq ft
Radio w/mixer
Servos 2 std
AssembAssemb
AssembAssemb
Assembly Manly Man
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TRICKR/CProductsLLC 938VictoriaAvenue Venice, California 90291
Visit:www.Zagi.com Email:[email protected] Sales:(310) 301-1614 Tech(310)827-2288 Fax: (310)822-7695
These instructions are updated with each new production run. Any mods or changes to
the kit are included with each run.
3M Super 77 Spray Adhesive is the recommended adhesive for the assembly of the Zagi-
5C. Since the Zagi-5C is all EPP the 77 Spray Adhesive will not damage the foam. Shoe
Goo, Goop, or any of the other Goo or goop adhesives can be used with a weight penalty
of one to three ounces.
Balancing The Zagi-5C balances at 8 inches back from the nose. This means that most
of the outboard wing panels are behind center of gravity (CG). Adding weight behind CG
means that more weight will be needed in the nose to achieve balance. So you pay a
weight penalty twice or even more for adding the extra weight behind the CG.
Wing Panels The wing panels are die-cut for standard servos. The die-cut electronics
bay will accept a receiver and a square AAsize battery pack or Nicad batteries from 400
mAh to 1000 mAh. A small 220 mAh battery may be used for extra light conditions. The
electronics bay will accommodate almost any receiver size. The die-cut servo bays can
be glued back in place and re-cut if different size servos are preferred. Just push them out
and spray them with the adhesive and replace them. Balsa shims can also be used to
assure a snug fit. The wing is thick enough for the radio installation within the original
contours of the airfoil. Radio gear should be invisible when it's covered.
CG
8”
2
The Zagi-5C Kit Contents:
2 Expanded polypropylene (EPP) wing panels and beds
2 Pre-cut airfoil shaped balsa elevons
5 .03 X .31 X 24 Carbon fiber spars
1 Roll 2.2 mil color poly tape
2 Control horns with 2 screw plates and 4 screws
2 Threaded 2-56 control rods
2 Threaded 2-56 clevises
2 Die-cut clear plastic winglets
1 EPP foam block for repair and reinforcement
1 Roll of 2” wide fiber filament tape
1 2” x 5.5” Styrene electronics bay floor
Needed Components:
1 Receiver (RX)
2 Standard servos (cutouts are for “standard” servos but minis may be used)
1 Battery A600 mAh NicadAAsize battery will allow several hours of flying
before recharging.
Tools and Materials Needed:
Small 90 degree square
Sanding block
#150 to #320 grit sandpaper
X-acto knife with #11 blade
Dremel(optional)
Spray adhesive (3M Super 77)
Lead weights for balancing (if needed)
Additional roll 2.2 mil color poly tape in contrasting color (optional) - see text
Round pencil or ball point pen
Mixing (popsicle) sticks
Clear food wrap
Scissors
Z-bend pliers (optional)
3
The four carbon fiber spar channels extend the full length of both
wing panels on both sides.
The electronics bay is die-cut. The receiver and battery will be
installed in the electronics bay. Do not remove the assembly until
the wing panels are joined.
The servo bays are also die-cut. They are hard to see. An easy
way to find them is to rub the surface just ahead of the carbon spar
channel.
The center spar channels will become one continuous 18” spar
channel when the wings are joined
There are three parts to each wing panel. The wing core is
shipped between the top and bottom beds. The beds are used as
construction jigs so do not discard them. The top of the wing can
be identified by its greater curvature. The right wing is the wing that
would be on your right if you were in the cockpit. The right and left
panels can be identified by the color mark at the root (the big end
of the wing panel): Red on the right. Four important pre-cut fea-
tures on the wing panels are illustrated below.
DONOTREMOVEANYPRE-CUTPARTSATTHISTIME!
4
Tapethetopbedstogetherwithfiberfilamenttape. Thentapethebottombeds
together. Removethehairsandzigzagsfromthewingcoresandbedsby
rubbingthemwith EPPfoamblock. Laythebottombedsonaflatsurface. Set
thewingcoresonthebedstopsideupandlightlyblocksandthewingpanels
(cores)with#150or#320sandpaper. Blocksandtheleadingedge(LE)toround
theflatspot.Placethewingsinthetopbedsandrepeattheprocedureonthe
wingbottom.
Spraytheroot(wideend)ofthewingpanelswith3MSuper77SprayAdhesive.
Holdthesprayhead1inchfromtheroot. Sprayalongbeadalongtherootedge.
Spreadthebeadwithasmallbrush,amixingpopsiclestick,orfoamblock. Let
theadhesivedryuntilitwillnotcomeoffonyourfinger(approx.20min.) Join
thewingpanelstogethermakingsurethatthecentersparchannelsonthe
bottomsideofthewingarealigned. Puttwopiecesoffibertapeacrossthe
seamtoholdthewingpanelstogetherwhilethegluedries.
Usethepopsiclestickasatroweltodirecttheadhesiveintothesparslot.
Repeatthisuntiltheentireinsideofthegrooveiswetwithadhesive.
Laytwoflatcarbonsparsonapieceofnewspaperandspray themwith
adhesive. Startingtwoinchesfromthecenterline,pushthesparsintothe
channel. Makesurethattheentiresparisbelowthewingsurface.
Laythetopbedsonaflatsurfaceandcoverthemwithclearfoodwrapto
preventthewingsfromstickingtothebeds. Putthewingpanelsinthetopbed
bottomsideup.Repeatthecarbonfibergluingprocedureonthebottomside.
Gluethecarbonfibersparsinthetopsidefirst. Laythebottombedsonaflat
surface. Putthewingpanelsinthebottombedtopsideup. Holdthesprayhead
2inchesfromthesparslot. Sprayonelongpuddleofsprayadhesivethelength
ofthetwosparslots.
5
Cuttheremaining24”carbonsparto18”. Wirecuttersworkwell.
Withthewingsinthetopbedsonaflatsurface,spraythecentersparchannel
withadhesive. Repeatthecarbonfibergluingprocedure. Pushitintothecenter
sparchannel. Makesurethatthesparisflushatthecenterofthewing. Align
thewinginthebeds. Useweights(notincluded)toholdthepanelsinplace
whilethegluedries.
Weightsareveryimportanttomaintainalignmentandwinggeometry. Letthe
wingassemblydryandgoontothenextstep. It’sagoodideaatthispointtolet
thegluedryovernightoratleastafewhours.
The Zagi 5C servo bay was designed to fit standard servos.
Standard servos are cheap and rugged with more than adequate
torque. The servo bay may be expanded or shimmed to fit a
different size servo. Since the servos are mounted so close to the
center of gravity (CG), different size servos may be used without
effecting the balance. Find the straight control arm with two tabs in
the parts bag supplied with the servo.
Replace the round servo control arm with the modified arm. Avoid
stressing the gears by holding the control arm to limit travel when
removing and replacing. Do not over-tighten tie screw. Snug is
tight enough. To maximize servo life, avoid moving the servo
control arm with the radio off.
DONOTINSTALLTHESERVOSATTHISTIME.
The servos must be centered with the radio powered up before
they can be installed.
Cut one of the tabs off the control arm leaving only one tab.
If the servo is supplied with a four tab (+) shaped control arm,
remove three of the tabs leaving only one.
6
Computer radios have settings for elevon mixing. Check the radio
manual for flying wing, elevon or delta-wing mix setting. V-tail
settings will not work. Set the transmitter for elevons and deter-
mine the appropriate receiver slot for the controls. Position the
servos the way they will be in the wings, with the control arms
facing outboard. Plug the right and left servos into the receiver.
Check to see that the switch is off. Plug the switch into the battery
slot of the receiver. Plug the battery into the other side of the
switch.
With the transmitter and receiver powered up, the servos should
be 90 degrees to the servo case in the hands-off neutral stick
position. If they are not, remove the control arm and replace it at
90 degrees to the servo case. Use the trim lever to make micro
adjustments to the alignment of the control arm. When the elevon
control stick is pulled back (the opposite direction to antenna) the
servo control arms should both move forward. When the stick is
moved to the right, the right servo control arm should move
forward and the left servo control arm moves back.
The trim levers are located on all transmitters to the left and below
the control stick. Some trim controls are electronic and others are
mechanical. Trim levers are provided to adjust the zero position of
the servos. Center the trim levers to the zero position. For
details on electronic zero centering, refer to radio owner’s manual.
Power up the transmitter. Always turn the transmitter switch to the
on position before powering up the receiver. Check the battery
condition indicator on the transmitter to make sure that the battery
is charged.
Power up the receiver
7
Remove the pre-cut electronics bay cookie from the center of the
wing. Save the cookie, it will be used later. The servo bays are
cookie cutouts in the shape of a servos. The cutouts are not easy
to see. Poking a finger from the bottom while inspecting the top
helps. Locate the cutout and push the cookie about halfway
through into the bottom of the wing.
The shape of the cutout indicates the orientation of the servo.
Push the servo into the cutout forcing the cookie through to the
bottom side of the wing. Cut away any foam that prevents the
insertion of the servo.
Use the servo to push the cookie out to the bottom side of the
wing. Align the servo so that it is flush with the top of the wing
while pressing the cookie from the bottom.
Use a sharp kitchen knife to cut the cookie flush with the bottom of
the wing. Another method is to mark the perimeter of the cookie
with a pencil, remove the cookie and make the cut.
Push the cookie from top to bottom of the wing about 1/4 inch.
Spray a small amount of adhesive on the edges of the cookie and
push it back in place.
8
Cut the corners of the tape so it can be folded into the electronics
and servo bays.
Place the wing in the top beds and repeat the same procedures
on the bottom side of the wing.
Lay the wing in the bottom beds. Spray a medium mist coat of
adhesive on the top side of the wing. Make sure that the walls of
the electronics bay are covered. Let the adhesive dry for 15
minutes before taping.
Thefibertapewillnotappearasdarkaspicturedhere. Darkertapewasusedin
thesepicturestoenhancecontrastvisibility.
Apply a piece of fiber filament tape straight across center section
of the wing between the carbon spars.
Apply two pieces of fiber filament tape across the nose. The tape
will partially cover the battery bay. For extreme combat duty,
apply a strip of fiber tape around the leading edge (LE).
Apply a strip of fiber filament tape to the trailing edge (TE). Start at
the tip and cover across to the spar on the opposite wing.
9
Spray another mist coat of adhesive on all top surfaces of the wing
including the areas covered with fiber tape. Make sure to spray
the tips and trailing edges. Spray 2 inches of the bottom of the
wing at the TE. Let the adhesive dry for 20 minutes.
Put the wing top side up in the bottom beds. Put a weight on the
left panel to hold it steady while taping. Start taping at the TE and
work forward.
Covering the top and bottom of the wing in contrasting colors
enhances visual orientation. Use the darker color on the bottom
surface. An optional roll of color tape will be required.
Wrap the first strip of tape around the TE from top to the bottom
being careful to follow the shape.
Apply strips of tape working forward from the TE. Overlap each
strip of tape a quarter of an inch. Extend the tape two inches
beyond the center line of the wing. Extend the tape two inches
beyond the tips.
Continue overlapping the strips of tape until the entire top right
wing panel is covered.
Trim the tape that extends beyond the LE.
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