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Though the Great Planes Ryan STA-M is an ARF and may
not have the same level of detail as an “all-out” scratch-built
model, it is a scale model none-the-less and is therefore
eligible to compete in the Fun Scale class in AMA
competition (we receive many favorable reports from those
who fly Great Planes ARFs in scale competition!). In 

Fun

Scale, the “builder of the model” rule does not apply. To
receive the five points for scale documentation, the only proof
required that a full size aircraft of this type in this
paint/markings scheme did exist is a single sheet such as a
kit box cover from a plastic model, a photo, or a profile
painting, etc. If the photo is in black and white, other written
documentation of color must be provided. Contact the AMA
for a rule book with full details.

If you would like photos of the full-size Ryan STA-M for scale
documentation, or if you would like to study the photos to
add more scale details, photo packs are available from:

Bob's Aircraft Documentation

3114 Yukon Ave

Costa Mesa, CA 92626

Telephone: (714) 979-8058

Fax: (714) 979-7279

e-mail: www.bobsairdoc.com

1. Your Ryan STA-M should not be considered a toy, but
rather a sophisticated, working model that functions very
much like a full-size airplane. Because of its performance
capabilities, the Ryan STA-M, if not assembled and operated
correctly, could possibly cause injury to yourself or
spectators and damage to property.

2. You must assemble the model according to the
instructions
. Do not alter or modify the model, as doing so
may result in an unsafe or unflyable model. In a few cases
the instructions may differ slightly from the photos. In those
instances the written instructions should be considered 
as correct.

3. You must take time to build straighttrue and strong.

4. You must use an R/C radio system that is in first-class
condition and a correctly sized engine and components (fuel
tank, wheels, etc.) throughout the building process.

5. You must correctly install all R/C and other components so
that the model operates correctly on the ground and in the air.

6. You must check the operation of the model before every
flight to insure that all equipment is operating and that the
model has remained structurally sound. Be sure to check
clevises or other connectors often and replace them if they
show any signs of wear or fatigue.

7. If you are not already an experienced R/C pilot, you
should fly the model only with the help of a competent,
experienced R/C pilot.

8. While this kit has been flight tested to exceed normal use,
if the plane will be used for extremely high stress flying, such
as racing, the modeler is responsible for taking steps to
reinforce the high stress points.

9. WARNING: The cowl and wheel pants included in this kit
are made of fiberglass, the fibers of which may cause eye,
skin and respiratory tract irritation. Never blow into a part to
remove fiberglass dust, as the dust will blow back into your
eyes. Always wear safety goggles, a particle mask and
rubber gloves when grinding, drilling and sanding fiberglass
parts. Vacuum the parts and work area thoroughly after
working with fiberglass parts.

Remember: Take your time and follow the instructions to
end up with a well-built model that is straight and true.

If you have not flown a low-wing model before, we
recommend that you get the assistance of an experienced
pilot in your R/C club for your first flights. If you're not a
member of a club, your local hobby shop has information
about clubs in your area whose membership includes
experienced pilots.

In addition to joining an R/C club, we strongly recommend you
join the AMA (Academy of Model Aeronautics). AMA
membership is required to fly at AMA sanctioned clubs. There
are over 2,500 AMA chartered clubs across the country.
Among other benefits, the AMA provides insurance to its
members who fly at sanctioned sites and events. Additionally,
training programs and instructors are available at AMA club
sites to help you get started the right way. Contact the AMA at
the address or toll-free phone number below:

Academy of Model Aeronautics

5151 East Memorial Drive

Muncie, IN 47302-9252

Tele. (800) 435-9262

Fax (765) 741-0057

Or via the Internet at:

http://www.modelaircraft.org

We, as the kit manufacturer, provide you with a top quality
kit and instructions, but ultimately the quality and flyability
of your finished model depends on how you build it;
therefore, we cannot in any way guarantee the
performance of your completed model and no
representations are expressed or implied as to the
performance or safety of your completed model.

PROTECT YOUR  MODEL, YOURSELF

& OTHERS...FOLLOW THESE

IMPORTANT SAFETY PRECAUTIONS

Scale Competition

3

Summary of Contents for Ryan STA-M

Page 1: ...sing the user assembled product the user accepts all resulting liability If the buyer is not prepared to accept the liability associated with the use of this product the buyer is advised to return thi...

Page 2: ...fact a couple of minor improvements make this plane our best ARF yet Although not intended to be an all out scale model the Ryan s classic design and two cockpit layout make it tempting for enthusiast...

Page 3: ...eck clevises or other connectors often and replace them if they show any signs of wear or fatigue 7 If you are not already an experienced R C pilot you should fly the model only with the help of a com...

Page 4: ...d on the Ryan an adapter kit for mounting the spinner is not included with this kit and must be purchased separately For the O S 61 SF SX and other two stroke engines with a 5 16 24 crankshaft thread...

Page 5: ...mm long with forty threads per inch When you see the term test fit in the instructions it means that you should first position the part on the assembly without using any glue then slightly modify or c...

Page 6: ...w lock connector body 2 4 40 x 1 8 3mm screws for screw lock 2 nylon retainers for screw lock 1 nylon ball link tail steering 1 0 80 threaded ball tail steering 1 0 80 nut for threaded ball 2 1 4 20 b...

Page 7: ...R L ailerons hinge strip 3 pc ply forward wing joiner ply aft wing joiner 2 wing dowels wing bolt plate GPMA2281 Fuselage Kit Fuselage forward and aft servo trays 4 hardwood cowl mounting blocks 2 coc...

Page 8: ...the slots For the best result use a high speed tool such as a Dremel Insert a 11 knife blade into the slots working it back and forth a few times to clean the slots out 3 Cut four 3 4 x 1 19 x 25mm h...

Page 9: ...is mounted in a mirror image with the servo arm pointing toward the middle of the wing and the output shaft toward the trailing edge 5 Thread a nylon clevis twenty full turns onto a 6 150mm threaded...

Page 10: ...s together until the epoxy has hardened Excess epoxy that gets on the covering can be easily removed before it hardens with a tissue dampened with denatured alcohol or other suitable solvent 6 Round o...

Page 11: ...he flying field 6 Cut the covering from the grooves in the landing gear rails in the bottom of the right wing panel Trim the rail and the wing sheeting where indicated by the arrow to accommodate the...

Page 12: ...fuse it helps to have a building stand We use a Robart Super Stand II ROBP1402 1 The same as was done for the ailerons and the wing prepare the elevator stab rudder and fin for hinging by cutting a s...

Page 13: ...tab While keeping the stab centered from side to side adjust the stab and slide the tape along the string until the arrow aligns with both ends of the stab Be certain the stab remains centered side to...

Page 14: ...ertical 14 The same as you did the stab draw a line around the fin where it meets the fuse Remove the fin and carefully cut then remove the covering 15 Use 30 minute epoxy to glue the fin to the fuse...

Page 15: ...to hold the template to the firewall aligning the lines on the template with the lines on the firewall if necessary extend the lines on the firewall with a straightedge and a pen Mark the center of t...

Page 16: ...est alignment of the throttle servo with the carburetor arm on the engine As can be seen in the photo at step 6 on page 21 the forward servo tray in this model was mounted with the throttle servo near...

Page 17: ...t contact the edges when the rudder is moved back and forth 4 Slip a small copper tube also called a swage and a threaded brass coupler with a clevis about 6 150mm onto one end of the braided steel ru...

Page 18: ...levises from the torque rod horns but leave the cables inside the fuselage 13 Cut holes in both halves of the molded plastic rudder fairing to accommodate the torque rod horns on the rudder This is be...

Page 19: ...h silver solder GPMR8070 by touching the solder to it The heat of the pushrod should melt the solder not the flame of the torch or soldering iron thus allowing the solder to flow Note Do not use silve...

Page 20: ...CA work quickly If necessary use a small mallet or a wood block to tap the tubes down into the holes before the CA takes hold 5 Mount the tail gear to the fuse with the straps and four 2 x 1 2 13mm sc...

Page 21: ...Great Planes Dead Center Hole Locator GPMR8130 shown in the photo or another method to mark the locations of the holes for mounting the engine 3 Remove the engine mount from the firewall Drill 29 or 9...

Page 22: ...the edges 3 Determine your engine exhaust configuration With the O S MAX 91 Surpass II used on this model an O S in type exhaust header pipe OSMG2624 was used to position the muffler near the bottom...

Page 23: ...cowl 3 32 to 1 8 2 to 3mm is suitable Holding the cowl in position drill 3 32 2 4mm holes through the cowl and the center of the cowl mount blocks Remove the cowl Enlarge the holes in the cowl with a...

Page 24: ...del to minimize or eliminate the requirement for additional ballast but the model shown in this manual required no tail weight with the components mounted where shown Be certain the receiver and batte...

Page 25: ...wing 4 Remove the strut and enlarge the hole in the strut only with a 1 8 3 2mm drill Mount the bottom of the strut to the wing with a 4 x 5 8 16mm screw 5 Mount the top of the strut to the fuselage...

Page 26: ...the other cockpit the same way 8 Trim the molded plastic turtledeck to fit the fuse then temporarily fit it into position Trim the rear cockpit coaming to accommodate the turtledeck 9 The same way a...

Page 27: ...eceiver but it s easier to operate with the wing off the fuselage Place the wing on a stand next to the fuselage then connect the Y connector from the ailerons to a servo extension cord and connect th...

Page 28: ...sing a C G Machine lift the model upside down at the balance point marked on top of both sides of the wing using the tip of your middle finger on both hands This is where the model should balance for...

Page 29: ...CAP0270 Carefully balance the propeller before flying Balance a few spare propellers as well An unbalanced prop is the single most significant cause of vibration that can damage your model Not only wi...

Page 30: ...e 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 gravel or...

Page 31: ...the throttle As the model gains speed decrease up elevator allowing the tail to come off the ground Be ready to apply right rudder to counteract engine torque Gain as much speed as the runway and fly...

Page 32: ...the tail on the ground One final note about flying the Ryan or any model Have a goal or flight plan in mind for every flight This can be learning a new maneuver s improving a maneuver s you already kn...

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