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IMPORTANT

  It is critical that your airplane be balanced correctly.  Improper balance will cause your airplane to lose control

and crash!

Center of Gravity Location:

4-1/2" - 5" (114mm-127mm) back from the leading edge of the wing, measured at the fuselage sides.

WARNING

  This is the recommended C/G range.

FOR TEST-FLYING WE SUGGEST YOU START WITH THE C/G AT 4-3/4" (121MM), then move it farther back as you
become familiar with the flying characteristics of the airplane.  It is not recommended that the C/G be located any farther
back than 5" (127mm).

IMPORTANT

  Balance the Speedy Bee ARF with the fuel tank 

empty and the airplane fully assembled.

Install the wing onto the fuselage.

Apply two short pieces of masking tape onto the 

bottom

 of the wing, 

4-3/4" (121mm) back from the leading edge, measured

at the fuselage sides.

Place your fingers on the masking tape, and carefully lift the airplane.  If the nose of the airplane falls, the airplane is nose heavy.

To correct this, move the battery pack and/or receiver  back far enough to bring the airplane into balance.  If the tail of the airplane
falls, the airplane is tail heavy.  To correct this, move the battery pack and/or receiver forward far enough to bring the airplane into
balance.  When balanced correctly, the airplane should sit level or slightly nose down when you lift it up with your fingers at the
C/G location.

Once you have flown and become familiar with the flight characteristics of the airplane,  the C/G can be moved fore or aft within

the C/G range to change the flight performance.  Moving the C/G back will cause the airplane to be more responsive, but less stable.
Moving the C/G forward will cause the airplane to be more stable, but less responsive.

DO NOT FLY THE AIRPLANE BEYOND THE RECOMMENDED BALANCE RANGE OR AN

UNCONTROLLABLE CRASH COULD RESULT!

SECTION 19: BALANCING THE SPEEDY BEE ARF

Ruler

Masking Tape

YOU'LL NEED THE FOLLOWING TOOLS AND SUPPLIES:

SECTION 20: CONTROL THROWS

The control throws listed in this section are for test-flying and general sport-flying.  If you want the airplane to be more aerobatic and
responsive, we suggest increasing the control throws in small amounts until you find your desired settings.

IMPORTANT

  The control throws are measured from the widest point of the control surfaces.

VERY IMPORTANT

  After you are finished adjusting the pushrods and control throws, we strongly suggest cutting 1/4" lengths

of the clear vinyl tubing provided and sliding one piece over each clevis.  The tubing will prevent any chance of the clevises
opening during flight.

Ailerons:

1/2" (12mm) Up  &  1/2" (12mm) Down

Elevator:

5/16" (8mm) Up  &  5/16" (8mm) Down

Rudder:

3/8" (10mm) Right  & 3/8" (10mm) Left

TEST-FLYING and GENERAL SPORT-FLYING

Summary of Contents for speedy bee

Page 1: ...nd now has the engine mounted to the fuselage We also eliminated the aileron bellcrank linkage and now use separate aileron servos for each aileron allowing pilots with computer radios and mixing to be able to experiment with aileron flap mixes The construction itself is all laser cut and built on special jigs for precision This provides superior alignment and performance And we ONLY use REAL iron...

Page 2: ...g clubs in your area whose membership includes qualified instructors If there is no hobby shop in your area we recommend that you contact the AMA at the address below They will be able to help you locate a flying field near you Academy of Model Aeronautics 5151 East Memorial Drive Muncie IN 47302 9252 800 435 9262 www modelaircraft org SAFETY WARNING Check out our website for more information on t...

Page 3: ...cloth both to protect the table and to protect the parts Keep a couple of small bowls or jars handy to put the small parts in after you open the accessory bags We re all excited to get a new airplane in the air but take your time This will ensure you build a straight strong and great flying airplane If you come across this symbol it means that this is an important point or an assembly hint If you ...

Page 4: ... most power lightest weight and best performance we suggest using a geared brushless motor such as the Multiplex BL480 4G with 4 4 1 gearbox APC 10 x 7E propeller M Troniks 40 amp brushless ESC and WattAge 3 cell 2000mAH LiPO flight pack BECAUSE YOU LL BE USING A BRUSHLESS MOTOR YOU WILL NEED TO USE A BRUSHLESS MOTOR CONTROLLER COMPATIBLE WITH THE MOTOR YOU VE CHOSEN DO NOT ATTEMPT TO USE AN ESC D...

Page 5: ...n extremely hot environment like the back of your car in direct sunlight for any length of time The extreme heat could cause the covering material to wrinkle and possibly damage the fragile components of the radio control system Kwik Bond Thin C A 887500 Kwik Bond Thick C A 887510 Kwik Bond 5 Minute Epoxy 887560 Kwik Bond 30 Minute Epoxy 887565 Kwik Bond C A Debonder 887545 Wilhold Silicon Sealant...

Page 6: ...Horns 2 Nylon Clevises 4 M2 x 10mm Wood Screws 8 Nylon Steel Pinned Hinges ELEVATOR CONTROL SYSTEM 1 5 1 2 Threaded Wire w Z Bend 1 Nylon Control Horn w Backplate 1 Nylon Clevis 2 M2 x 12mm Machine Screws 6 C A Style Hinges ENGINE MOUNT ASSEMBLY 2 Engine Mounting Beams 4 M3 x 18mm Machine Screws 4 M3 x 25mm Socket Cap Screws 4 M3 Lock Nuts 4 M3 Blind Nuts 12 M3 Flat Washers 1 Prebent Tail Wheel Wi...

Page 7: ...rger s charge rate must be set at 340mAH or less Do NOT leave in direct sunlight or in a hot car or storage area Do NOT get wet or expose to moisture Do NOT short circuit the battery ONLY discharge and charge the battery outdoors or in a fire safe container Do NOT charge with reverse polarity Do NOT leave the battery connected when not in use Do NOT operate or charge unattended Do NOT solder to th...

Page 8: ...ribs and the ends of the center wing panel as possible Do not omit this procedure or the wing joints may fail during flight Working with one wing tip panel for now carefully test fit the wing tip panel onto the corresponding end of the center wing panel without using glue making sure that the dowels in the wing tip panel engage the holes in the center wing panel While holding the two wing panels t...

Page 9: ...ed until the epoxy fully cures After the epoxy fully cures repeat the previous procedures to glue the second wing tip panel to the center wing panel STEP 3 CHECKING THE GLUE JOINTS Once the epoxy has fully cured remove the masking tape and double check both glue joints If any gaps are present mix a small quantity of 30 minute epoxy and carefully fill any remaining gaps IMPORTANT Do not omit this p...

Page 10: ...size mini servos You may need to enlarge the hole slightly to fit your particular servo Repeat the previous procedures to install the second aileron servo into the wing Tie the end of the string to the servo lead plug at the servo mounting hole then pull the string from the other end to guide the servo lead out through the bottom of the wing Kwik Bond Thick C A Kwik Bond 5 Minute Epoxy Excel Model...

Page 11: ...owel into place using a thin layer of 5 minute epoxy Remove any excess epoxy using a paper towel and rubbing alcohol Repeat the previous procedures to install the second hardwood dowel into the precut holes in front of the wing saddle STEP 2 INSTALLING THE RUBBER BAND DOUBLERS Using a modeling knife cut away and remove the covering material from over the fuel tank support hatch in the top of the w...

Page 12: ...ine around the two doublers onto the wing The two rear rubber band doublers are precovered in yellow to match the wing IMPORTANT It s important to make sure that the inside edge of each doubler is even with or slightly out from the sides of the fuselage This will ensure that the doublers will not interfere with the installation of the rear wing deck Remove the wing from the fuselage and use a mode...

Page 13: ...ix 64 rubber bands per side Wilhold Silicon Sealant Masking Tape 1 Front Wing Deck 1 Rear Wing Deck Paper Towels Wax Paper YOU LL NEED THE FOLLOWING PARTS FROM THE KIT YOU LL NEED THE FOLLOWING TOOLS AND SUPPLIES SECTION 8 WING DECK INSTALLATION STEP 1 INSTALLING THE FRONT WING DECK Continued On Next Page Remove the wing lay a long piece of wax paper over the wing saddle then reinstall the wing ma...

Page 14: ... same procedures in the previous step to align and install the rear wing deck When lined up properly the sides and top of the wing deck should be even with the sides and top of the fuselage and there should be few or no gaps between the base of the wing deck and the wing Notice that the back edge of the rear wing deck overlaps the trailing edge of the wing IMPORTANT It will take the silicon sealan...

Page 15: ... the horizontal stabilizer mounting slot in each side of the fuselage The slot is 5 long and 1 4 wide Using a ruler and a pencil locate and draw a centerline mark on the trailing edge of the stabilizer Slide the stabilizer into the mounting slot and temporarily align it The stabilizer should be pushed forward as far as possible and the centerline mark you drew on the stabilizer should be lined up ...

Page 16: ...ne at both the wing and the stabilizer When aligned properly the stabilizer should be parallel to the wing If the stabilizer is not parallel to the wing remove it and use 220 grit sandpaper with a sanding block to sand down the higher side of the stabilizer mounting slot then reinstall the stabilizer and check the alignment once more Repeat this procedure until you are satisfied with the alignment...

Page 17: ...eel Pinned Hinges 7 C A Style Hinges 1 Prebent Tail Wheel Wire w Nylon Bearing Paper Towels Rubbing Alcohol Petroleum Jelly NHP Epoxy Mixing Sticks NHP Epoxy Mixing Cups YOU LL NEED THE FOLLOWING PARTS FROM THE KIT YOU LL NEED THE FOLLOWING TOOLS AND SUPPLIES Important Information About the Hinges Included with Your Speedy Bee ARF The hinges are not glued into place from the factory You must glue ...

Page 18: ...o free up the hinges If you notice any excess dried epoxy on any hinge pivot point it can be removed by carefully using the tip of your modeling knife to cut it away Repeat the previous procedures to hinge the aileron to the other half of the wing then pull firmly on each aileron to double check that the hinges hold securely IMPORTANT The bevel should be deep enough so that when you push the hinge...

Page 19: ...ips of the elevator should be even with the tips of the stabilizer While holding the elevator tight against the trailing edge of the stabilizer pivot the elevator down about 45º and apply 5 6 drops of thin C A to the exposed area of each hinge Turn the fuselage over and repeat for the other side of the hinges Remove any C A that may run down the hinge line using C A Debonder IMPORTANT After the C ...

Page 20: ... bearing groove in the back edge of the fuselage Use 220 grit sandpaper with a sanding block to lightly sand each side of the mounting tab on the nylon bearing to roughen the smooth surface then apply a thin layer of lightweight oil or petroleum jelly to the pivot point of the nylon bearing to prevent epoxy from gluing the nylon bearing to the tail wheel wire Mix a small quantity of 5 minute epoxy...

Page 21: ... will make it easier to land and take off on grass runways Slide the aluminum tube through the oval shaped holes in the fuselage and center it making sure that each end of the aluminum tube is equal distance from the fuselage sides Secure the aluminum tube to the fuselage by looping the two rubber bands over one end the aluminum tube stretching them across the bottom of the fuselage and looping th...

Page 22: ...on spacer onto the tail wheel wire followed by the tail wheel Use the wheel collar and one M3 x 5mm machine screw to hold the tail wheel in place SECTION 12 ENGINE INSTALLATION 2 Engine Mounting Beams 4 M3 x 18mm Machine Screws 4 M3 x 25mm Socket Cap Screws 4 M3 Lock Nuts 4 M3 Blind Nuts 12 M3 Flat Washers YOU LL NEED THE FOLLOWING PARTS FROM THE KIT Kwik Bond Thick C A 2 Phillips Head Screwdriver...

Page 23: ...lugs IMPORTANT The precut notch in the right side engine mounting beam should face up as shown Using a ruler measure the width between the centerline of the holes in the two engine mounting beams This distance will vary depending on the width of your engine s crankcase Divide the measurement found in the previous procedure in half Measure this resulting distance and draw one vertical line to the r...

Page 24: ...l If you need to move the engine forward to clear the rear mounted carburetor of a four stroke engine for instance it won t cause any problem Using a pencil carefully mark the locations of the engine mounting holes onto the engine mounting beams Install a propeller onto your engine then set your engine onto the engine mounting beams Using a ruler measure the distance from the firewall to the back ...

Page 25: ... shown IMPORTANT The plastic pushrod guide tube for the throttle pushrod wire has been preinstalled from the factory This tube is positioned to line up with the throttle arm on most two stroke engines within the specified size range If you are using a four stroke engine you may need to flip your engine s carburetor so that the throttle arm is on the right side of the engine You may also need to mo...

Page 26: ...he adjustable pushrod connector into the enlarged hole in the servo arm IMPORTANT When threading on the knurled nut don t tighten the nut completely You don t want the pushrod connector loose but you do want it to be able to rotate without binding To prevent the knurled nut from loosening during flight apply a drop of thin C A to it Allow the C A to fully cure before proceeding Continued On Next P...

Page 27: ... the servo 2 Phillips Head Screwdriver Excel Modeling Knife Scissors Ruler 220 Grit Sandpaper w Sanding Block YOU LL NEED THE FOLLOWING PARTS FROM THE KIT YOU LL NEED THE FOLLOWING TOOLS AND SUPPLIES SECTION 14 FUEL TANK ASSEMBLY AND INSTALLATION 1 85cc Fuel Tank 1 Large Diameter Metal Plate 1 Small Diameter Metal Plate 1 Neck Reinforcement Ring 1 Rubber Stopper 1 Fuel Pick Up Clunk 1 M3 x 20mm Ma...

Page 28: ...n satisfied with the alignment tighten the machine screw until the rubber stopper expands and seals the fuel tank opening IMPORTANT Don t overtighten the machine screw or you might strip the threads in the small metal plate or split the front of the fuel tank With the rubber stopper assembly installed double check to make sure that the fuel pick up can move freely inside the fuel tank Ideally the ...

Page 29: ...ting holes the elevator servo mounting servo hole is sized to fit most standard size mini servos You may need to enlarge the hole slightly to fit your particular servo Install the rubber grommets and brass collets onto your elevator servo making sure to install the collets with the flanges toward the bottom of the servo Continued On Next Page STEP 3 INSTALLING THE FUEL TANK Cut two pieces of silic...

Page 30: ... of thin C A into the pilot holes and allow the C A to fully cure The C A will harden the surrounding balsa making the mounting area stronger Install the control horn and backplate using two M2 x 12mm machine screws being careful not to overtighten them PRO TIP STEP 3 INSTALLING THE PUSHROD ASSEMBLY Continued On Next Page Connect your radio system and plug the elevator servo into the receiver Cent...

Page 31: ...EED THE FOLLOWING PARTS FROM THE KIT YOU LL NEED THE FOLLOWING TOOLS AND SUPPLIES SECTION 16 RUDDER CONTROL SYSTEM INSTALLATION 1 6 1 8 Threaded Wire w Z Bend 1 Nylon Control Horn w Backplate 1 Nylon Clevis 2 M2 x 12mm Machine Screws STEP 1 INSTALLING THE RUDDER SERVO Install the rubber grommets and brass collets onto your rudder servo making sure to install the collets with the flanges toward the...

Page 32: ...n pushrod wire and nylon clevis Like with the elevator pushrod assembly the Z Bend in the rudder pushrod wire should be 9 16 out from the center of the servo arm and the nylon clevis should be installed in the outermost hole in the control horn The servo horn should point down toward the bottom of the fuselage too Move the rudder right and left several times to ensure that the pushrod assembly doe...

Page 33: ...to the aileron using two M2 x 10mm wood screws Repeat the previous procedures to align and install the second control horn onto the bottom of the other aileron STEP 2 INSTALLING THE PUSHROD ASSEMBLIES Install the servo horn onto the servo making sure that the servo horn is centered and points toward the wing tip Install the servo horn retaining screw to secure the servo horn to the servo Using a m...

Page 34: ...Excel Modeling Knife Scissors Electric Drill 1 16 5 64 Drill Bits Ernst Airplane Stand Ruler Pencil YOU LL NEED THE FOLLOWING PARTS FROM THE KIT YOU LL NEED THE FOLLOWING TOOLS AND SUPPLIES SECTION 18 FINAL ASSEMBLY 2 Plywood Mounting Plates Optional 1 Plastic Windscreen 5 M2 x 5mm Wood Screws 2 M2 x 10mm Flange Head Wood Screws 1 Decal Set STEP 1 INSTALLING THE HATCH COVER With the hatch cover se...

Page 35: ...nd connect the battery lead to the switch and the switch and servo leads to the receiver STEP 5 APPLYING THE DECALS Using a clean cloth wipe the airframe down completely to remove any dust debris and oil We suggest using rubbing alcohol to wipe the airframe down in the areas where the decals will be applied Cut out each of the decals and apply them using the box cover photos for reference If any a...

Page 36: ...ctly the airplane should sit level or slightly nose down when you lift it up with your fingers at the C G location Once you have flown and become familiar with the flight characteristics of the airplane the C G can be moved fore or aft within the C G range to change the flight performance Moving the C G back will cause the airplane to be more responsive but less stable Moving the C G forward will ...

Page 37: ...atly reduced Properly balance the propeller A propeller that is out of balance will cause excessive vibration which could lead to engine and or airframe failure and it will reduce engine efficiency and power You should complete a successful range check of your radio equipment prior to each new day of flying or prior to the first flight of a new or repaired model You should perform your initial tur...

Page 38: ... line to the right of the vertical thrust line and one vertical line to the left of the vertical thrust line Make sure that the two vertical lines you draw are parallel to the vertical thrust line STEP 1 INSTALLING THE MOTOR MOUNTING BEAMS IMPORTANT To aid in alignment the horizontal and vertical thrust lines have been predrawn onto the firewall for you Using a ruler and a pencil measure and draw ...

Page 39: ...straps and drill 3 32 diameter pilot holes through the engine mounting beams at the marks you drew IMPORTANT Be careful that you drill the holes straight down and not at an angle IMPORTANT The 3 7 8 measurement is not set in stone Frankly for this airplane it s not very critical If you need to move the motor forward or back slightly it won t cause any problem We d suggest mounting the motor furthe...

Page 40: ...iPO flight battery the LiPO flight battery that you choose MUST be able to handle the current draw of your motor gear box and propeller combination Before charging or otherwise using your LiPO battery pack please read all warnings included with it Smaller capacity LiPO flight batteries may be too light to balance the airplane properly In this case it may be necessary to add some nose weight Instal...

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