GREAT PLANES Ryan STA EP, Instruction Manual

3. You must take time to build straight, true and strong.

4. You must use an R/C radio system that is in first-class
condition, and a correctly sized motor and components
(electronic speed control, motor battery, 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.

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

Before starting to build, compare the parts in this kit
with the Parts List, and note any missing parts. Also
inspect all parts to make sure they are of acceptable
quality. If any parts are missing, broken or defective, or
if you have any questions about building or flying this
airplane, please call us at (217) 398-8970, or e-mail us at
productsupport@greatplanes.com.

If you are contacting us for replacement parts, please
be sure to provide the full kit name (Ryan STA EP) and
the part numbers as listed in the Parts List.

You can also check our web site at www.greatplanes.com
for the latest Ryan STA EP updates.

If you have not flown this type of 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

Because weight is an important factor in the Ryan STA EP,
the ideal radio system is one that has a miniature receiver,
four mini servos such as Futaba’s

®

S3101 servos

(FUTM0033) and an electronic speed control with BEC
(Battery Eliminator Circuitry). The electronic speed control
with BEC uses the motor battery, not a separate receiver
battery, to power the receiver and servos. When the motor
battery voltage reaches a preset voltage, the BEC on the
speed control stops the motor while still supplying power to
the receiver and servos. The Great Planes ElectriFly

™

C-30

(GPMM2030) works great in the Ryan STA EP.

In testing the Ryan STA EP, many different motors were
evaluated. Some of them provided adequate thrust to fly the
Ryan STA EP satisfactorily. Some, however, gave such
marginal performance that the climb-out was very shallow
and flight times were short.

The Great Planes S-60014R reverse rotation motor with a
2.5:1 gear drive unit (GPMG0850) and a 15 tooth pinion
gear (GPMG0852) to produce a gear ratio of 3.0:1 enables
the motor to turn a larger, more efficient propeller at a
slower speed. This usually results in more thrust for a better
climb rate and longer flight times up to 6 minutes.

The Ryan STA EP was designed to fly on a 7-cell 8.4 volt
1700 – 3000 mAh flat battery pack. Even though the Ryan
STA EP will fly well on an inexpensive motor battery pack,
we recommend a battery pack that uses Sanyo

®

or

Panasonic

®

cells. These cells have a low internal resistance

which translates into more power and less heat.

If you are new to electric airplanes (or even cars and boats)
here is a short explanation of rechargeable NiCd and NiMH

Battery Selection

Motor Selection

Radio Selection

DECISIONS YOU MUST MAKE

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.

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