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Rev 508jf

Pacific Aeromodel Mfg., Inc.

27% Gee Bee “Y” ARF

(A Giant Sport Scale Model)

INSTRUCTION MANUAL

Congratulations on your purchase of this high quality Almost-Ready-to-Fly model airplane kit.  It
has been created by experienced designers and skilled craftsmen and many of its parts have been
factory built for you.  Nevertheless, its ultimate success or failure depends on you. Be sure you have
read and understand this entire manual before attempting to assemble, set up and fly this model
airplane.

This manual is intended for experienced ARF assemblers.  If you have any questions or anything
seems confusing, please contact us for clarification.  Some pictures in this manual may not exactly
match the contents of your kit due to ongoing production improvements.

WARNING - THIS IS NOT A TOY!

Radio controlled model aircraft are capable of inflicting serious injury and/or property damage if not
assembled, operated and maintained in a competent and safe manner.  The successful assembly,
operation and maintenance of radio controlled model aircraft are not intuitive skills and performing
them safely and competently takes experience.  If you are not already an experienced radio
controlled aircraft assembler and flyer, we STRONGLY suggest that you find an experienced
modeler to assist you with the assembly and operation of this model airplane.

Summary of Contents for 27 percentGee Bee "Y" ARF

Page 1: ...any questions or anything seems confusing please contact us for clarification Some pictures in this manual may not exactly match the contents of your kit due to ongoing production improvements WARNING...

Page 2: ...with liability insurance covering the use of model aircraft You can reach them at 5161 East Memorial Drive Muncie Indiana 47302 phone 765 287 1256 or email www modelaircraft org ALWAYS OPERATE THIS MO...

Page 3: ...up to reduce the travels will also reduce the effective torque of your servos and may invite control surface flutter possibly resulting in loss of control of the airplane Servo extensions You will nee...

Page 4: ...into the fixed surface until the hinge pin is just touching the point of the V Clean off any glue that squeezes out of the hole Now bend each hinge down 90 degrees and twist it until it is perpendicu...

Page 5: ...ILERON PUSHRODS AND CONTROL HORNS Locate the two 3 pushrods one left and one right control horn and eight 2 6x12mm self tapping screws Attach one end of the pushrod to the outer hole of your servo arm...

Page 6: ...rt of the pant up out of the way while you attach the rear brace to the wing using a 6 32 x 3 8 socket head bolt lock washer and flat washer Do not attach the fixed pant to the wing yet That will be t...

Page 7: ...built in Mark the top of the firewall so you don t accidentally reverse it The engine box is not glued in pull it out of the front of the fuselage The centerlines for mounting your engine are scribed...

Page 8: ...ack tubing provided for the clunk line It won t harden like the yellow tubing does INSTALL THE FUEL TANK Drill a 1 4 hole for the carburetor fuel line in a convenient location in the firewall Drill ho...

Page 9: ...the choke and throttle arms We have also included two separate single servo mounting trays that you can locate to suit your engine but be sure that you don t mount any servo closer than 8 inches to an...

Page 10: ...gine and muffler Cut away the part of the dummy engine that is in front of your engine s cylinder You may also want to cut a cooling air exit at the bottom rear of the cowl just in front of the coolin...

Page 11: ...oxy reinstall the stab recheck the measurements and pin and tape it into position Check several times to make sure the alignments are correct before the epoxy sets MOUNT THE VERTICAL FIN Trial fit the...

Page 12: ...mark the position of the four control horn mounting screws Make sure the base of the horn is over the hard point in the elevator Drill 1 16 pilot holes and screw the horn to the elevator Do the other...

Page 13: ...to the outer holes of the servo arm Center the rudder servo with your transmitter Do not cross the cables inside the fuselage Clamp the rudder in a centered position Stretch one cable across the hole...

Page 14: ...struts are cut at different angles depending on where they go With the wing mounted on the fuselage trial fit the struts and mark the one that fits best in each position Locate the hardwood blocks fa...

Page 15: ...Low Rates High Rates Ailerons 1 1 2 2 up 7 8 1 1 4 down Elevators 3 4 1 each way Rudder 1 1 2 2 each way FLY SAFE and HAVE FUN Jim Johnson Pacific Aeromodel Jim Johnson Pacific Aeromodel Jim Johnson...

Page 16: ...icially designated AMA Air Show Teams AST are authorized to use devices and practices as defined within the Air Show Advisory Committee Document 9 I will not operate my model aircraft while under the...

Page 17: ...e it is still under power except to divert it from striking an individual 9 Radio controlled night flying is limited to low performance model aircraft less than 100 mph The model aircraft must be equi...

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