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#5010 muffler for O.S. 1.60 FX engine (OSMG2846)

Fuji BT-32S R/C gas engine (FJIG0033)

Per the IMAA Safety Code, magneto spark-ignition engines
must have a coil-grounding switch on the aircraft to stop the
engine and prevent accidental starting. The switch must be
operated manually (without the use of the transmitter) and
be accessible by the pilot and assistant. For use with the
Fuji engine shown, the manually operated switch was made
from a .3 amp slide switch, 16-gauge wire and a covered,
crimp-on connector purchased at the local Radio Shack

®

.

Slightly different hardware may be required if using a
different spark-ignition engine. All of the components
required are available at any hardware or home-
improvement store.

If using the Fuji BT-32SB engine the following hardware
must be purchased separately:

(4) 1/4-20 x 2-1/4" or 1/4-20 x 2-1/2" Phillips-head bolts

(4) 1/4-20 blind nuts

(4) 1/4" flat washers

(4) 1/4" lock washers

(4) 10-32 x 3/4" socket-head cap screws

(4) #10 lock washers 

Note: If using the Fuji BT-32 (or most other gas engines),
the nose-gear option may not be used and the model must
be built as a taildragger. This is because of the extended
distance from the firewall that the engine would have to be
mounted in order to clear the nose gear hardware.

The fuel tank included with this kit is suitable for use with
glow fuel. However, if using a gas engine, the fuel tank must
be converted to work with gasoline. This can be done by
purchasing a Sullivan #484 Gasoline/Diesel fuel tank
conversion kit (SULQ2684), a package of Du-Bro #813 1/8"
[3.2mm] I.D. fuel line barbs (DUBQ0670) and 3' of Great
Planes gasoline fuel tubing (GPMQ4135). Without the fuel
line barbs some types of gas-compatible fuel line may slip
off the metal fuel tubes. If the Sullivan conversion kit is not
available the Du-Bro #400 gas conversion stopper
(DUBQ0675) and one 12" [300mm] piece of K+S 1/8"
[3.2mm] soft brass tubing (K+SR5128, box of 5) could also
be used to make the conversion. Full instructions on how to
set up the fuel tank and make the conversion to gas are
provided in this manual.

The model on the kit box cover is shown with a Great Planes
2-3/4" [70mm] aluminum spinner (GPMQ4555) (not included).
An adapter nut for mounting the spinner cone is also required.
(Order No. OSMG4588 for use with the O.S. 1.60 FX.) The
Great Planes spinner is intended to be used on engines that
have a threaded crankshaft–not engines that use a propeller
bolt (such as most gas engines). In this case, a different type
of spinner will have to be used. In most cases the propeller
cutouts in the cone will also have to be enlarged. A rotary tool
with a carbide cutter works great for the rough work, followed
by a small metal file to clean up the edges. Always wear eye
protection when working with power tools.

A building stand or cradle comes in handy. We use the Robart
Super Stand II (ROBP1402) for all of our projects in R&D.

The Giant Big Stik ARF is intended to be flown with flaps using
a radio with a minimum of five channels. If, however, you have
only a four-channel radio, the Giant Big Stik ARF could be
flown without flaps. In this case, the flap servos will have to be
linked to the aileron servos using Y-connectors. Then, all four
control surfaces on the wings will function as ailerons.

Since the Giant Big Stik ARF is a large model, standard
servos should not be used to operate the control surfaces.
Servos with a minimum torque rating of 50 oz-in are

Radio Equipment

Flap & Aileron Setup

Building Stand

Spinner

Fuel Tank  Setup

4

Summary of Contents for Giant Big Stir

Page 1: ...ed condition to the place of purchase To make a warranty claim send the defective part or item to Hobby Services at the address below Hobby Services 3002 N Apollo Dr Suite 1 Champaign IL 61822 USA Include a letter stating your name return shipping address as much contact information as possible daytime telephone number fax number e mail address a detailed description of the problem and a photocopy...

Page 2: ...an be powered by either a spark ignition gas engine or a glow engine Refer to Engine Recommendations under the DECISIONSYOU MUST MAKE section of this manual for information that may help you decide how to power your Giant Big Stik ARF For the latest technical updates or manual corrections to the Great Planes Giant Big Stik ARF visit the Great Planes web site at www greatplanes com Open the Airplan...

Page 3: ...ill be used for extremely high stress flying such as racing or if an engine larger than one in the recommended range is used the modeler is responsible for taking steps to reinforce the high stress points and or substituting hardware more suitable for the increased stress Remember Take your time and follow the instructions to end up with a well built model that is straight and true This is a parti...

Page 4: ... fuel line barbs some types of gas compatible fuel line may slip off the metal fuel tubes If the Sullivan conversion kit is not available the Du Bro 400 gas conversion stopper DUBQ0675 and one 12 300mm piece of K S 1 8 3 2mm soft brass tubing K SR5128 box of 5 could also be used to make the conversion Full instructions on how to set up the fuel tank and make the conversion to gas are provided in t...

Page 5: ...R6047 Denatured alcohol for epoxy clean up CA applicator tips HCAR3780 Threadlocker thread locking cement GPMR6060 Drill bits 1 16 1 6mm 3 32 2 4mm 1 8 3 2mm 3 16 4 8mm 13 64 5 2mm or 3 16 15 64 6mm or 1 4 1 4 6 4mm 9 32 7 1mm 8 32 tap and drill set GPMR8103 or 8 32 Tap and 29 drill Tap handle GPMR8120 Small metal file Silver solder w flux GPMR8070 1 Hobby knife HCAR0105 11 Blades 5 pack HCAR0211 ...

Page 6: ...pany To locate a hobby dealer visit the Hobbico web site at www hobbico com Choose Where to Buy at the bottom of the menu on the left side of the page Follow the instructions provided on the page to locate a U S Canadian or International dealer If a hobby shop is not available replacement parts may also be ordered fromTower Hobbies at www towerhobbies com or by calling toll free 800 637 6050 Parts...

Page 7: ...nt Right 1 1 20 1 60 Engine Mount Left 2 2 56 x 36 914mm Pushrods 6 4 40 x 12 305mm Pushrods 1 36 914mm White Pushrod Tube for gas engine 1 3 16 x 36 4 8 x 914mm Pushrod Guide Tube 6 Giant Control Horns 6 Giant Control Horn Mounting Plates 2 CA Hinge Strips 6 Heat Shrink Tubing 1 Steering Arm Nuts Bolts Connectors 2 1 4 20 Blind Nuts factory installed in fuselage 2 1 4 20 x 2 51mm Nylon Wing Bolts...

Page 8: ...inside 3 Cut the covering from the bottom of the wing over the holes for the servo wires next to the root end of both wings 4 Connect one 12 300mm servo extension wire to each aileron servo and connect one 6 150mm extension wire to each flap servo Cut two pieces of the included black heat shrink tubing in half making four 1 1 2 40mm pieces Center the pieces of tubing over the connections between t...

Page 9: ...hinges into the hinge slots of both wings 3 Join the flaps and ailerons to the wings with the hinges Make sure there is a small gap between the leading edge of the flaps and ailerons and the trailing edge of the wings just enough to see light through or to slip a piece of paper through Take out the T pins then apply at least eight drops of thin CA to both sides of all the hinges on both wings Allo...

Page 10: ... soldered 2 Apply a few drops of soldering flux to the end of the pushrod then use a soldering iron or a torch to heat it Tin the heated area with silver solder GPMR8070 by applying the solder to the end The heat of the pushrod should melt the solder not the flame of the torch or soldering iron thus allowing the solder to flow The end of the wire should be coated with solder all the way around 3 P...

Page 11: ...ap pushrod and connect the flap to the flap servo the same way you did the ailerons 10 Hook up the other flap the same way 1 Round one end of the 1 4 x 1 3 16 6 4 x 30mm hardwood anti rotation dowel Use 30 minute epoxy to glue the dowel into the end of one of the wings Glue both 3 8 x 2 9 5 x 50mm hardwood wing dowels into the front of both wings 3 8 10mm of the wing dowels should protrude 2 Cut t...

Page 12: ...he bottom of the fuselage into the stab to hold the trailing edge in place 4 Stick another T pin into the bottom of the fuselage centered over the firewall Tie a loop in an approximately 70 180cm piece of non elastic string Slip the loop in the string over this T pin 5 Fold a piece of masking tape over the string near the other end and draw an arrow on it Slide the tape along the string and align ...

Page 13: ... wipe off excess epoxy Reinsert the T pin through the back of the fuselage and the stab Use the pin and string to center the stab the same as before Position any weight used to align the stab with the wing Do not disturb the model until the epoxy has fully hardened Note Be certain the spacing of the slot in the top of the fuselage for the fin remains the same so the fin can be glued into position ...

Page 14: ... a 90 bend in the wire at the mark be sure to make the bend in the correct direction so the wheel will be facing the correct direction and be centered when the wire is inserted into the rudder 6 Taildragger Hold the rudder up to the fin and mark where the arm of the tail gear wire will enter the rudder 7 Taildragger Use a hobby knife or a 3 32 2 4mm brass tube sharpened on the end to cut a groove ...

Page 15: ...ur Giant Big Stik ARF with a nose gear mount the landing gear in the aft mounting location Note that the 90 angle side of the gear faces forward Follow these steps if building your Giant Big Stik ARF with nose gear Otherwise skip to step 1 on page 16 5 Tricycle Use a metal file wire cutters or a rotary tool with a cut off wheel to grind one edge off of two 6 32 blind nuts 6 Tricycle Apply a few da...

Page 16: ...ngine Mounting Template from the back of the manual As the supplied Great Planes engine mount is adjustable and the mounting bolt holes are slotted the crossmarks for the bolt holes on the template will work for all engines that fit the mount but the outline depicts the engine mount footprint when an O S 1 60 FX is mounted 5 Use tape or spray adhesive to hold the glow engine mount template to the ...

Page 17: ...lear the aluminum bracing inside 5 Draw the other blind nut into the other hole on the left side and two more blind nuts into the remaining two holes the same way 6 Glue together the two 1 4 6 4mm plywood Fuji engine mount plates Install four 10 32 blind nuts not included in the back of the plate where shown These will be for holding the engine to the plate 7 Mount the engine mount plate to the fi...

Page 18: ... and fueling defueling and another line for overflow muffler pressure or for a vent on gas engines Since the engine and fuel lines on this model are easy to get to fueling will be done through the pickup line If however a third line is required for fueling defueling simply install the third line into the stopper additional fuel line and clunk not included with this kit The third line will have to ...

Page 19: ...If you don t have an extended drill bit the engine will have to be removed or you could drill the hole with a 3 16 4 8mm brass tube sharpened on the end As best as you can position the hole so the throttle pushrod will align with the carburetor arm it doesn t have to be perfect because you will be able to bend the pushrod later Be certain you do not drill into the fuel tank 2 Cut 17 430mm from the...

Page 20: ...rods and hook up the rudder and elevator using the same hardware used for the flaps and ailerons Be certain to distance the elevator control horn far enough away from the rudder so that the two will not interfere 1 Cut the 1 4 x 1 4 x 8 6 4 x 6 4 x 200mm hardwood mounting rails into two 4 100mm pieces Cut the 1 16 x 1 x 6 1 6 x 25 x 150mm balsa rail support into two 3 75mm pieces 2 A plywood recei...

Page 21: ...ntered Starting with the rudder servo test fit the four arm servo arm in one of the four positions until you find the one that is 90 degrees Cut off the remaining arms Repeat this procedure for the rest of the servos Note For this procedure the flap servos cannot be connected to a function operated by a two position switch Temporarily connect the flap servos to a function that has a center such as...

Page 22: ...r the first flights Later you may wish to experiment by shifting the C G up to 5 8 16mm forward or back to change the flying characteristics Moving the C G forward may improve the smoothness and stability but the model may then require more speed for takeoff and make it more difficult to slow for landing Moving the C G aft makes the model more maneuverable but could also cause it to become too dif...

Page 23: ...found it necessary to add any weight recheck the C G after the weight has been installed 1 With the wings level have an assistant help you lift the model by the engine propeller shaft and the bottom of the fuselage under the trailing edge of the fin Do this several times 2 If one wing always drops when you lift the model it means that side is heavy Balance the airplane by adding weight to the othe...

Page 24: ...y from high heat sparks or flames as fuel is very flammable Do not smoke near the engine or fuel and remember that engine exhaust gives off a great deal of deadly carbon monoxide Therefore do not run the engine in a closed room or garage Get help from an experienced pilot when learning to operate engines Use safety glasses when starting or running engines Do not run the engine in an area of loose ...

Page 25: ...s of 80 inches for monoplanes and 60 inches for multi wing aircraft Quarter scale or larger replicas of person carrying aircraft with proper documentation minimum 3 view drawing which do not fit the size requirements will also be permitted SECTION 1 0 SAFETY STANDARD 1 1 Adherence to Code The purpose of this Safety Code is to provide a structure whereby all participants including spectators will b...

Page 26: ...9 6 cu in for four stroke engines These maximums apply only to AMA Sanction competition events such as 511 512 515 and 520 All non competition events should be sanctioned as Class C events in which these engine size maximums do not apply Generally it is recommended that no attempt should be made to fly a radio controlled model aircraft with a gasoline engine in which the model aircraft weight woul...

Page 27: ...evator to keep the tail wheel on the ground If you built it with tricycle gear keep the elevator neutral or hold a little bit of down to hold the nose on the ground If necessary adjust the tail wheel or nose wheel so the model will roll straight down the runway Double check all pushrod connections to make sure they are all secure Remember to takeoff into the wind When ready point the model straigh...

Page 28: ...ue and climb out then retract the flaps and go around to make another attempt When you re ready to make your landing flare and the model is a foot or so off the deck smoothly increase up elevator until it gently touches down Once the model is on the runway and has lost flying speed hold elevator as needed up or down depending on if you built a nose gear or a taildragger to hold the wheel that is d...

Page 29: ...anced to reduce vibration stress and electrical noise And all operate on a 40 1 gasoline oil mix which helps them last up to four times longer than other gasoline engines Includes a Walbro WT407 carb Champion RCJ6Y spark plug firewall mount and rear mounted muffler FJIG0033 O S Engines 1 60 FX The 1 60 FX features dual ball bearings for durability and smooth operation plus a low crankcase profile ...

Page 30: ..._______________ Where Purchased _________________________ Date Construction Started __________________ Date Construction Finished _________________ Finished Weight __________________________ Date of First Flight ________________________ FLIGHT LOG ...

Page 31: ...31 Fuji BT 32 Engine Mounting Template Drill 19 64 7 5mm or 9 32 7 2mm holes at the crossmarks for the 1 4 20 blind nuts that go into the back of the firewall Fuji BT 32 ...

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