Extreme Flight 42 Vyper Bype User manual

Assembly Manual / Airframe – 42” VyperBype
Thank you for purchasing this 3DHobbyShop by Extreme Flight ARF RC aircraft If you have
any issues, questions, concerns or problems during assembly, please contact our tech
department at: [email protected] or 770-887-1794 10am-5pm Eastern Monday thru
Friday
SAFETY in Assembly
During assembly of this aircraft, you will be asked to use sharp knives and hobby adhesives
Please follow all safety procedures recommended by the manufacturers of the products you use,
and always follow these important guidelines:
ALWAYS protect your eyes when working with adhesives, knives, or tools, especially power
tools Safety glasses are the best way to protect your eyes
ALWAYS protect your body, especially your hands and fingers when using adhesives, knives,
or tools, especially power tools Do not cut toward exposed skin with hobby knives Do not
place hobby knives on tables or benches where they can roll off or be knocked off
ALWAYS have a first-aid kit handy when working with adhesives, knives, or tools, especially
power tools ALWAYS keep hobby equipment and supplies out of the reach of children
SAFETY in Flying
This is NOT a toy! It is a very high-performance RC airplane capable of high speeds and
extreme maneuvers It should only be operated by a competent pilot in a safe area with proper
supervision
ONLY fly your aircraft in a safe, open area, away from spectators and vehicles and
where it is legal to fly NEVER fly over an unsafe area, such as a road or street
NEVER fly near overhead power or utility lines If your airplane ever becomes stuck in
a line or a tree DO NOT attempt to retrieve it yourself Contact the authorities for
assistance in retrieving your aircraft Power lines are DANGEROUS and falls from
ladders and trees CAN KILL!
Never fly too close to yourself or spectators
Spinning propellers are DANGEROUS!
Never run your motor inside a house or building with the propeller attached Remove the
prop for safety Always fly within your control
Always follow manufacturers instructions for your radio system
Always preform a pre-flight check of your aircraft to be certain of the aircraft's
airworthiness
Always obtain proper insurance before flying Always fly model aircraft in accordance
with the Academy of Model Aeronautics (AMA) Safety Code Visit the AMA's website
at www.modelaircraft.org for more information
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Limits f Resp nsibility
Extreme Flight provides high-quality aircraft and components to it's
customers and end users. These aircraft and components are assembled
by the end user to produce a flying model. It is beyond Extreme Flight's
control to monitor the end user's completed aircraft. Therefore, Extreme
Flight in no ay accepts or assumes responsibility or liability for damages
resulting from the end user assembled product. The end user assumes all
responsibility and liability in use of Extreme Flight aircraft and components
and agreeing to hold harmless Extreme Flight, it's distributors and dealers.
Required Items
Hobby Knife
Small Phillips Screwdriver
Set Metric Allen Wrenches
Scissors
Small Pliers
Wire Cutters
Adjustable wrench
Masking tape
Drill and drill bits
Threadlocker (Blue Loctite)
Optional:
Heat gun and covering iron
Dremel tool
Assembly Instructi ns – Read c mpletely bef re starting assembly!
UNPACK :
Unpack your airplane and examine the components Check for damage of any kind If you have
damage, please contact Extreme Flight to discuss Contact info listed above
WRINKLES :
Your airplane was packed in plastic at the factory without any wrinkles in the covering You may
notice some wrinkles now; more likely, you will notice a few in a day or two or the first time you take
the plane out to the flying field These wrinkles are the result of wood shrinkage and/or expansion
Balsa wood changes size and shape slightly as it is exposed to varying humidity in the air This is a
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natural property of balsa wood As your airplane adjusts to the weather in your part of the world,
wrinkles may appear and disappear Wrinkles may be removed with the gentle application of heat to
the covering material on your airplane The best tools to use are a heat gun and covering iron Apply
the heat gently: the covering material will shrink as you apply the heat, and this will remove the
wrinkles BE CAREFUL! Too much heat applied too quickly can damage the covering, either by
causing it to pull away from the wood at seams and corners or even by melting it The covering will
shrink at low temperature with patient application of heat Wrinkles in the covering DO NOT affect
flight performance If you must shrink on a color-seam, use the iron and go slowly and carefully to
avoid any pulling or lifting at the seam
Remove the canopy before attempting to use heat on your covering! The canopy is made of thermo-
activated plastic and WILL deform with the application of heat Do not apply heat to the canopy
PAINT:
If you need to clean your airplane, we recommend using a damp towel The paint used on the canopy
and cowl is not safe for all cleaners In particular, DO NOT use alcohol on these parts, it will remove
the paint
Let’s get started!
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Assembly
Assemble cradle from bare wood pieces as shown using CA glue. Use the cradle to support the aircraft
for assembly and later for battery changes at the flying field.
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Start by sliding the wheels onto the aluminum wheel axles, and tightening the aluminum wheel collars
with a 1.5mm hex driver.
Slide the wheels and axles into the wheel pants as shown.
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Attach the wheel pant assembles onto the carbon main landing gear with 4mm locknuts as shown. Hold
the wheel collars with needle-nose pliers while tightening the nuts.
Screw wood screws into the pants as shown, going about half-way in. Then, remove the screws and clip
off about ½ of their length with wire cutters and re-install.
Install the gear onto the fuselage with 3mm screws as shown.
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Remove covering over control-horn slot and tail-wheel slotin rudder as shown, using a hobby knife or hot
soldering iron.
Slide double-sided rudder control horn into slot in rudder as shown, drip several drops of thin CA into the
slot to attach horn.
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Assemble tailwheel onto tailwheel wire with collar as shown.
Install bracket onto tailwheel wire as shown and glue tailwheel into bottom of rudder with epoxy,
polyurethane, or thick CA adhesive.
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Slide rudder onto fin and glue hinges with a few drops of thin CA each.
Install wood screws through holes in tailwheel bracket to attach tailwheel to fuselage. NOTE: check
rudder swing after installing screws. If tailwheel bracket causes rudder to become stiff and you do not
see an easy fix, remove the rearmost screw in the bracket. The front screw only is sufficient to attach the
bracket to the fuselage if necessary.
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Apply masking tape as shown to rudder and fin to hold rudder straight.
Assemble the rudder servo arm as shown. The connector nuts should be loose enough to allow the
connectors to rotate freely on the horn, use medium CA glue to lock the nuts into place permanently.
Note that we are using DuBro #672 arms in these photos.
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Install rudder servo into fuselage as shown.
Please study the pull-pull cable diagram.
Assemble the front ends of the cables as shown. Make the loop in the cable as shown before crimping.
Crimp the brass tube sleeve with pliers to secure the assembly. Crimp HARD to keep the cable from
sliding, then add a drop of thin CA to the crimp-joint. Use a drop of thin CA where the ball-link screws
onto the chrome end piece.
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Install the cables into the rudder servo arm as shown.
Assemble the rudder end of the cables. The cables should cross once inside the fuselage forming an "X"
shape. Be sure to use CA glue on the nuts holding the ball links to the rudder arm.
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Remove covering over horizontal stab opening on both sides of the fuselage. Remove covering over the
elevator servo location on the left side of the fuse only.
Remove covering over wing spar tube opening, wing bolt holes, wing alignment pin holes and aileron
servo wire opening as shown, on both sides of fuselage.
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Insert the carbon wing spar tube into the fuselage. Insert the horizontal stabilizer into its slot. Check the
stab for level against the tube. Adjust as necessary by sanding the slot. Use a ruler to center the stab
side-to-side, and front-to-back on each side; check all alignments of the stab carefully.
When you are satisfied with the stab alignment, place several drops of thin CA glue into the joint of the
stab and fuselage, allow to wick into the joint. NOTE: We do not remove any covering on the stab.
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Install elevators onto horizontal stab. Apply several drops of thick or medium CA into the slot on one
elevator half before installing onto the joiner rod of the other elevator half.
Install elevator control horn. Assemble elevator pushrod as shown and install on horn, using CA glue to
lock the nut.
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Run elevator servo wire forward in fuselage and install elevator servo/arm as shown. Be sure to use CA
to lock the nut on the pushrod connector, but still allowing it to rotate.
Install your brushless motor to firewall as shown. Note that in order to balance properly, the Vyper Bype
needs a brushless outrunner motor approx 170-200g.
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Install your esc into the front of the fuselage as shown. Place pieces of masking tape over the plywood
cowl mounting pads in the fuselage sides as shown.
Slide the cowl onto the fuselage and center as shown.
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Use tape strips to locate the plywood mounting pads and drill holes for small wood screws.
Install wood screws to retain cowl as shown.
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Attach velcro and seatbelt for lipo to the battery tray as shown. NOTE: There's not a lot of room inside
the fuselage. ou will need to attach the receiver to the fuselage side where it does not interfere with the
rudder servo, and tie up all servo wires close to the fuselage sides.
Remove covering over cooling hole in hatch.
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Being a biplane, the Vyper Bype uses 4 wing halves. The lower 2 house the aileron servos. The ailerons
of the upper and lower wings are connected by wire pushrods.
Assemble the 4 aileron interconnecting arms as shown with servo connectors. The aileron
interconnecting arms mount through slots in the trailing edge of the ailerons. Two of the arms mount to
the top of the bottom ailerons, the others mount to the bottom of the top ailerons.
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