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Keep all engine fuel in a safe place, away 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 gravel or
sand; the propeller may throw such material in your
face or eyes.

Keep  your  face  and  body  as  well  as  all  spectators
away from the plane of rotation of the propeller as
you start and run the engine.

Keep  these  items  away  from  the  prop:  loose
clothing, shirt sleeves, ties, scarfs, long hair or loose
objects such as pencils or screwdrivers that may fall
out of shirt or jacket pockets into the prop.

Use  a  “chicken  stick”  or  electric  starter  to  start  the
engine. Do not use your fingers to flip the propeller.
Make  certain  the  glow  plug  clip  or  connector  is
secure so that it will not pop off or otherwise get into
the running propeller. 

Make  all  engine  adjustments  from  behind  the
rotating propeller.

The engine gets hot! Do not touch it during or right
after  operation.  Make  sure  fuel  lines  are  in  good
condition  so  fuel  will  not  leak  onto  a  hot  engine,
causing a fire.

To  stop  a  glow  engine,  cut  off  the  fuel  supply  by
closing  off  the  fuel  line  or  following  the  engine
manufacturer’s  recommendations.  Do  not  use
hands, fingers or any other body part to try to stop
the  engine. To  stop  a  gasoline  powered  engine  an
on/off  switch  should  be  connected  to  the  engine
coil. Do not throw anything into the propeller of a
running engine.

Read and abide by the following excerpts from the
Academy of Model Aeronautics Safety Code. For the
complete  Safety  Code  refer  to 

Model  Aviation

magazine, the AMA web site or the Code that came
with your AMA license.

General:

1) I will not fly my model aircraft in sanctioned events,

air shows, or model flying demonstrations until it has
been  proven  to  be  airworthy  by  having  been
previously, successfully flight tested.

2) I  will  not  fly  my  model  aircraft  higher  than

approximately 400 feet within 3 miles of an airport
without  notifying  the  airport  operator.  I  will  give
right-of-way and avoid flying in the proximity of full-
scale aircraft. Where necessary, an observer shall be
utilized  to  supervise  flying  to  avoid  having  models
fly in the proximity of full-scale aircraft.

3) Where established, I will abide by the safety rules for

the  flying  site  I  use,  and  I  will  not  willfully  and
deliberately  fly  my  models  in  a  careless,  reckless
and/or dangerous manner.

5) I will not fly my model unless it is identified with

my name and address or AMA number, on or in
the  model.  Note: This  does  not  apply  to  models
while being flown indoors.

7) I  will  not  operate  models  with  pyrotechnics  (any

device that explodes, burns, or propels a projectile
of any kind).

Radio Control:

1) I will have completed a successful radio equipment

ground  check  before  the  first  flight  of  a  new  or
repaired model.

2) I  will  not  fly  my  model  aircraft  in  the  presence  of

spectators  until  I  become  a  qualified  flier,  unless
assisted by an experienced helper.

3) At all flying sites a straight or curved line(s) must be

established  in  front  of  which  all  flying  takes  place
with  the  other  side  for  spectators.  Only  personnel
involved with flying the aircraft are allowed at or in
the  front  of  the  flight  line.  Intentional  flying  behind
the flight line is prohibited.

4) I  will  operate  my  model  using  only  radio  control

frequencies  currently  allowed  by  the  Federal
Communications Commission.

5) 

I will not knowingly operate my model within three
miles  of  any  pre-existing  flying  site  except  in
accordance  with  the  frequency  sharing  agreement
listed

[in the complete AMA Safety Code].

9) Under no circumstances may a pilot or other person

touch a powered model in flight; 

nor should any part

of  the  model  other  than  the  landing  gear,
intentionally touch the ground, except while landing.

AMA SAFETY CODE (excerpts)

Failure  to  follow  these  safety  precautions  may
result in severe injury to yourself and others.

ENGINE SAFETY PRECAUTIONS

22

Summary of Contents for SUKHOI SU31 .50-.91 ARF

Page 1: ...r of the final user assembled product By the act of using the user assembled product the user accepts all resulting liability If the buyer is not prepared to accept the liability associated with the u...

Page 2: ...g the AMA provides many benefits one of the primary reasons to join is liability protection Coverage is not limited to flying at contests or on the club field It even applies to flying at public demon...

Page 3: ...to end up with a well built model This is a partial list of items required to finish the Hobbico Sukhoi SU31 that may require planning or decision making before starting to build Order numbers are pr...

Page 4: ...xy is specified you may use either 30 minute or 45 minute epoxy or 6 minute epoxy When 30 minute epoxy is specified it is highly recommended that you use only 30 minute or 45 minute epoxy because you...

Page 5: ...Canopy 11 Right wing 12 Stab elevators 13 Fin Rudder 14 Engine Mount Qty 2 15x15x15mm hardwood block 2 15x15x10mm hardwood block 2 155mm length of Velcro 2 3mm plywood wing joiner 1 Plywood wing bolt...

Page 6: ...by telephone at 217 398 8970 Order Number Description How to purchase HCAA3630 Wing Hobby Supplier HCAA3631 Fuse belly pan Hobby Supplier HCAA3633 Tail Surfaces Hobby Supplier HCAA3632 Cowl Hobby Supp...

Page 7: ...rvos in the wing will require the use of one 6 152mm servo extension for each aileron One Y harness connector is required and is used to allow the aileron servos to plug into one slot in your receiver...

Page 8: ...Install a silicone clevis keeper onto the clevis and then install the clevis in the second hole from the end of the aileron control horn 6 Be sure the aileron servo is centered Enlarge the second oute...

Page 9: ...center of the wing as measured at the wing tip should be approximately 2 3 8 60mm Block the wingtip up while the glue cures Note Due to production techniques there may be some variance in the actual d...

Page 10: ...35mm 1 3 8 machine screws and two 4mm washers 9 Cut the covering from the wing bolt holes in the belly pan Place the belly pan onto the bottom of the wing aligning it with the fuselage Mark the outlin...

Page 11: ...ab use a fine felt tip marker and trace the outline of the fuselage onto the top and bottom of the stab Cut the center section of the covering from the top and bottom of the stab using the same techni...

Page 12: ...res 9 Insert three hinges into the rudder Then slide the rudder onto the fin Apply thin CA onto the hinges the same as was done with the other control surfaces This completes the installation of the t...

Page 13: ...he flange to the fuselage with three 2 x 7mm 5 16 sheet metal screws INSTALL ENGINE FUEL TANK THROTTLE SERVO 1 The top of the engine mount can be identified by the angled bevel Be sure when mounting t...

Page 14: ...e hole threading it into the 4mm blind nut Tighten the bolt until the blind nut is pulled tight against the backside of the firewall Remove the bolt and repeat this for each of the three remaining hol...

Page 15: ...blocks For the top mounting block measure from the front of the fuselage back 1 5 8 40mm and make a line Measure up from the bottom of the fuselage 3 1 2 89mm and make a line intersecting the other li...

Page 16: ...e of drops of thin CA into each of the screw holes to harden the threads Allow the glue to cure 6 Re install the cowl onto the front of the fuselage On the cowl mark the location for the glow plug nee...

Page 17: ...he aileron with two 2 x 15mm 5 8 machine screws and the nylon mounting plate 4 Insert the third rod into the remaining opening on the left side of the fuselage Connect the control horn to the clevis a...

Page 18: ...the outermost hole in the servo arm with a Hobbico Servo Horn Drill or a 48 or 5 64 2mm drill bit Center the elevators and align the wire pushrod with the hole in the end of the servo arm Using a mark...

Page 19: ...ary SET THE CONTROL THROWS Use a Great Planes AccuThrow or a ruler to accurately measure and set the control throw of each control surface as indicated in the chart that follows If your radio does not...

Page 20: ...weight may be added by cutting open the bottom of the fuse and gluing it permanently inside Note Do not rely upon the adhesive on the back of the lead weight to permanently hold it in place Over time...

Page 21: ...with disastrous effect but vibration may also damage your radio receiver and battery Vibration can also cause your fuel to foam which will in turn cause your engine to run hot or quit We use a Top Fli...

Page 22: ...ing demonstrations until it has been proven to be airworthy by having been previously successfully flight tested 2 I will not fly my model aircraft higher than approximately 400 feet within 3 miles of...

Page 23: ...s a great flying model that flies smoothly and predictably The Hobbico Sukhoi does not however possess the self recovery characteristics of a primary R C trainer and should be flown only by experience...

Page 24: ...altitude with plenty of fuel practice slow flight and execute practice landing approaches by reducing the throttle to see how the model handles at slower speeds Add power to see how she climbs as well...

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