background image

ADDITIONAL ITEMS

NEEDED

Here is a description of some of the additional items

you will need to assemble your STURDY BIRDY.

GLUES

C/A (Cyanoacrylate) glues will be used to glue the

wood parts together because they are strong and very
fast curing Do not use C/A glues for any of the wing
construction because most C/A glues will attack and
dissolve the foam wing They come in different
viscosities Thin C/A glue can be used when gluing parts
with a good tight joint When using this type of C/A,
assemble the parts first and then add the glue It will
penetrate the joint and cure in a couple of seconds Thick
C/A glue has a longer curing time that gives you more
time to get the parts assembled accurately before the
glue cures and the thicker consistency helps fill poor
fitting joints C/A Accelerator spray can be very handy
for speeding up the curing process of the thick C/As.

Epoxy is a two part adhesive that has to be mixed

before it will cure We will use epoxy glue for the wing
assembly since it takes a little longer to cure and does
not attack foam Epoxies come in several different types
with many different curing times We recommend Great
Planes Pro 30 Minute Epoxy (#GPMR6047).

ENGINE

The STURDY BIRDY is designed to fly with a

standard 20 size 2-cycle engine The OS 20 FP is a
great, inexpensive engine that provides plenty of power.

This combination is ideal for the average beginner. A

25- 30 size engine can be used if you would like

snappier performance especially at higher elevations
where the air is thinner We recommend that you do not

use an engine larger than a 30 as the additional weight
makes the plane more difficult to fly at slow speeds The
Great Planes adjustable engine mount provided with the
STURDY BIRDY will fit most .20-.30 engines.

RADIO

The STURDY BIRDY requires 3 channels to fly but

there are not many 3 channel radios produced anymore
Therefore you will more than likely end up purchasing a

4 channel radio with 3 or 4 servos which usually costs
less than the three channel radios anyway Your next
plane may require four channels since it will probably
have ailerons The radio system you purchase should
have standard size servos so they will fit into the
fuselage channel Mini or micro servos will also work
but they will require some modifications to fit properly.
Large servos will not work in the STURDY BIRDY.

FUEL TANK

The STURDY BIRDY was designed to hold a square

tank We recommend a Great Planes 6 oz. tank
(#GPMQ4102).

COVERING

Although not absolutely necessary, the "tail

feathers" and the wing should both be covered with a
"low heat" type iron-on covering Top Flite Econokote
is perfect for your STURDY BIRDY. The covering
will not only make your plane look nicer, but it will
also add strength and make it last longer.

HERE IS A HANDY LIST OF THE
ADDITIONAL ITEMS YOU WILL NEED.

1 .20 - .30 2-Stroke Engine

1  3 - 4 Channel Radio with Standard Servos

2 or 3  9 x 4 or  9 x 6 Propellers

2 2-1/2" Wheels (Great Planes #GPMQ4223)

1 6 oz Tank (Great Planes #GPMQ4102)

1 box #64 Rubber Bands (Hobbico #HCAQ2020)

1/2 oz. Thin CA (Great Planes #GPMR6001)

1/2 oz. Thick CA- (Great Planes #GPMR6013)

1 30 Mm. Epoxy (Great Planes #GPMR6047)

1 roll Low Heat Iron-on Covering

(Top Elite Econokote)

1 1/4" Foam Rubber (Hobbico #HCAQ 1000)

1 12" Medium Fuel Tubing

(Great Planes #GPMQ4131)

TOOLS NEEDED FOR ASSEMBLY

Hand or Electric Drill
Drill Bits (3/32", 1/8": 3/16": 5/32", 7/32")
Sanding Block or T-Bar Sander
Sealing Iron
Razor Saw
Hobby Knife
Pliers
Screwdrivers

T-Pins

Hammer
Waxed Paper

Nylon Reinforced Strapping Tape

4

Содержание Sturdy Birdy

Страница 1: ...der the direct supervision of a responsible adult If not handled correctly this model is capable of inflicting serious bodily harm It is your responsibility and yours alone to assemble this model corr...

Страница 2: ...atter how long it may take The first thing you should do after reading this paragraph is check the parts in this kit against the parts list on the next page to make sure everything is here We strongly...

Страница 3: ...RF1R02 Shaped Fin 1 ARF1R03 Rudder 1 ARF1A03 Small Wood Parts Sub Pack ARF1F03 Firewall Doubler 1 ARF1F04 Firewall 1 Stock Description Qty ARF1F05 Landing Gear Strips 2 ARF1S04 1 16 Ply Stab Doubler 1...

Страница 4: ...slow speeds The Great Planes adjustable engine mount provided with the STURDY BIRDY will fit most 20 30 engines RADIO The STURDY BIRDY requires 3 channels to fly but there are not many 3 channel radio...

Страница 5: ...r A sheet of wood or anything 1 8 thick laid down next to the piece makes it easy to do this Transfer the hinge locating marks from the side to the edges as shown above D 5 Use your hobby knife with a...

Страница 6: ...e 1 64 plywood doubler to ONE side of the fin gluing it to the balsa doubler Check the fit again and if it is still a little loose add a plywood doubler to the other side If you need to you can sand t...

Страница 7: ...s after the parts are covered Cut the slots for the hinges and test fit the stabilizer and the elevator together to check for proper alignment between the two parts STABILIZER D 14 The stabilizer and...

Страница 8: ...g D 23 Lay some waxed paper down on the work surface and mix up another ounce or so of epoxy Spread the epoxy throughout the slot and on the root middle end of the other wing panel Slide the two wing...

Страница 9: ...urface to loosen it up D 25 Trim the plastic center section protector to size by using either scissors or your hobby knife to cut along the scribe lines Use some coarse grit sandpaper to scratch up th...

Страница 10: ...d into the nylon nutplate on the opposite side of the rudder Although not necessary you may use some wire cutters or an abrasive cutoff wheel to cut the screws off even with the plate D 33 The other c...

Страница 11: ...t with four 4 x 1 2 sheet metal screws D 38 Test fit your engine to the mount Adjust the width of the rails to fit the engine Tighten the mounting screws securely Apply a couple of strips of masking t...

Страница 12: ...ap the servo mounting lugs the front two servos should be mounted with their servo output shafts towards the back of the plane and the back servo should have its output shaft towards the front of the...

Страница 13: ...threaded end of the 2 pieces D 52 Install the link rods in the 2nd hole from the outer end of each control horn With the control surfaces and the servo horns in their neutral positions cut the inner p...

Страница 14: ...a good idea to use some medium strength thread locking cement on these bolts D 58 Drill a 1 8 diameter hole in each support using the attached landing gear as a guide Remove the supports from the fus...

Страница 15: ...hes D 62 Cut the inner pushrod to length then cut and install the remaining 12 threaded link rod to hook up the throttle control Make sure you can achieve both full throttle and idle without binding o...

Страница 16: ...ylon propeller for your first flights since it will not break as easily as wood Sand the edges of the prop before you use it The edges of nylon props are very sharp and should be dulled before use If...

Страница 17: ...and be patient The STURDY BIRDY will lose altitude fairly quickly and you can resume control When preparing to land it is a good idea to make several practice passes from a safe altitude and graduall...

Страница 18: ...PilotsLog Use this to record your flights it s fun to look back on Date Flight Time Conditions Comments 18...

Страница 19: ...Date Flight Time Conditions Comments Engine Mount Template for 20 48 Adjustable Mount 19...

Страница 20: ...he Sub T E against the trailing edge ofeach wing half The Sub T E should be oriented as shown in the sketch with the 90 degree corners along the bottom of the wing Epoxy the Sub T E to the trailing ed...

Страница 21: ...s the top and mark the lop side of each piece Make another mark 7 16 from the inboard end ofeach piece Notch each piece to make a slot for the torque rod Note the threaded portion ofeach torque rod sh...

Страница 22: ...poxy from seeping in Spread some epoxy in the slot and on the leading edge of the center trailing edge pieces Do notapplyanyepoxywithin 1 4 ofthenotchoryoumayglue thetorque rod Insert the torque rods...

Страница 23: ...4 Epoxy the two 11 32 x 2 x 1 5 8 Tapered T E Supports to the inboard bottom of each center trailing edge as shown in the photo...

Страница 24: ...ock with 150 grit sandpaper to sand the inner ends of the sub trailing edge center trailing edge and the tapered trailing edge to match the angle ofthe foam wing end Be careful not to change the angle...

Страница 25: ...x 1 1 4 x 22 1 4 Ailerons in place against the sub trailing edge and under the torque rods Mark the location where the torque rods will enter the ailerons Drill a 3 32 hole in each aileron to accept t...

Страница 26: ...7 Cut a groove in the leading edge of the aileron to allow clearance for the torque rods Trial fit the ailerons in place and cut as necessary until they fit...

Страница 27: ...inge slots in each aileron The hinge slots should be approximately 1 1 2 10 and 18 from the wing tip Place the ailerons against the sub trailing edge and mark the hinge locations on the wing Draw a ce...

Страница 28: ...9 Using a sanding block sand the leading edge of each aileron to a V shape as shown in the photo above...

Страница 29: ...the wing Do not glue the hinges until after you have covered the wing Sand the outboard edge of the sub trailing edges and the ailerons to match the foam wing tips Now skip to step 21 on page 8 WING...

Страница 30: ...uts in the Plastic Center Section Protector Therearescribelinesonthebottomsurfaceoftheprotector to help guide you Trial fit the aileron servo in place and trim as necessary to make it fit properly Use...

Страница 31: ...Remove the protector and carve out a hole in the foam wing to fit your servo Carve out an extra 1 4 square groove in front and behind the servo cut out for the servo rails Drill a 1 2 diameter hole f...

Страница 32: ...the front and back edges ofthe servo cut out Put the aileron servo in place and mark on the plastic protector where the servo mounting screws should be Drill 1 16 diameter holes on the marks you just...

Страница 33: ...he cutouts in the foam wing if necessary to make the protector lie flat againstthewing Whensatisfiedwiththefit removetheservoanduse coarse sandpaper to scratch up the bottom of the wing protector so t...

Страница 34: ...ers to make the Z bends and attach them to the servo horn Turn on your radio plug in your aileron servo and adjust the centering of the servohornuntil it is centered and therightaileronmoves up whenyo...

Отзывы: