Pacific Aeromodel 27 percentGee Bee “Y” ARF Instruction Manual

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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.

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Summary of 27 percentGee Bee “Y” ARF

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Page 1 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...
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Page 2 rev 508jf warranty pacific aeromodel mfg., inc. Guarantees this kit to be free from defects in material and workmanship at the time of purchase and for 30 days thereafter. This warranty does not cover any component parts damaged by use, modification or the installation of an engine larger tha...
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Page 3 rev 508jf equipment selection engine: the pacific 27% gee bee “y” is very light for it’s size and it will fly very well with a mid- size gasoline engine. It was designed to use a classic, heavy 43 to 62cc engine (with tail-weight added), or one of the new, light 40 to 50cc engines, (with nose...
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Page 4 rev 508jf high temp material.) then go over the entire airplane with a covering iron or a heat gun and a rag. Heat the covering until it is tight and wrinkle free (it can take a lot of heat, but stay away from the seams and “n” numbers as much as you can) and then quickly rub the covering dow...
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Page 5 rev 508jf there is a string attached to a small block of wood, tack glued inside the servo opening. This string leads to the hole in the top of the wing near the root rib where the servo lead must exit the wing. There you will find another wood block holding that end of the string. Break the ...
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Page 6 rev 508jf main strut assemblies. Also drill 3/32” pilot holes through the mounting flange of the fixed pants, one in front, one in back and one on each side. Install the main struts. Attach the main strut to the gear mount in the wing, using three 8-32 x 5/8” socket head bolts, lock washers a...
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Page 7 rev 508jf center the wheel in the opening in the pant and then tighten the wheel collars. Twist the sliding pant until the axle is lined up with the leading edge of the wing, then drill 1/16” pilot holes and attach the fixed portion of the pant to the wing using 4 of the 2.6x10mm phillips hea...
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Page 8 rev 508jf sure that your engine will be centered over the alignment marks on the firewall. Drill the holes and install the engine, using a thread-locking compound on the bolts. Cut a block of 1/2” thick scrap balsa approximately 1” x 1 3/4” to act as a spacer to keep the fuel lines from crimp...
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Page 9 rev 508jf meets the fuselage. Remove the box, spread 30-minute epoxy behind the line and reinsert it into the fuselage. Set the fuselage aside until the epoxy sets up completely. Install the throttle and choke servos and pushrods. Although the choke can be operated manually, we recommend that...
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Page 10 rev 508jf with 30-minute epoxy. The epoxy will give you time to set the dummy engine/cowl assembly up as shown and to carefully center the dummy engine within the cowl. Install the cowl mounting blocks. Locate the four factory covered hardwood cowl mounting blocks. Glue them into the notches...
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Page 11 rev 508jf attach the stickers. It will be much easier to put the stickers on now, than later. See the picture for their proper location. (run the rudder stickers parallel to the ribs in the fin. The bottom of the fin is not parallel to the direction of travel.) mount the stabilizer. Bolt the...
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Page 12 rev 508jf screw the bracket in place with the two 2.6 x 12m self-tapping screws provided. Push the wheel collar up under the bracket and tighten the setscrew to hold it in place. Install the elevator servos. Add a 24” extension to each of your elevator servos and use tape or shrink tubing to...
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Page 13 rev 508jf pass one end of the cable through a crimp tube and through the hole in the threaded adapter. Loop the cable back through the crimp tube in the other direction, leaving about 3” of cable past the tube. Now loop the cable over the tube and pass it through the tube a third time going ...
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Page 14 rev 508jf install your receiver, switches and batteries. We like to put the switches in the cockpit floor ahead of the pilot, but you can put them almost anywhere that strikes your fancy. Before you mount the batteries, assemble the airplane and check the balance. (the cg should be 5 ¼” behi...
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Page 15 rev 508jf set the control throws. These are the recommended starting throws, measured at the widest point of the control surface: 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 aero...
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Page 16 rev 508jf official academy of model aeronautics national model aircraft safety code effective january 1, 2006 general 1. A model aircraft shall be defined as a non-human-carrying device capable of sustained flight in the atmosphere. It shall not exceed limitations established in this code an...
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Page 17 rev 508jf agreements, including an interference test report if the agreement indicates no interference exists, will be signed by all parties and copies provided to ama headquarters. 7. With the exception of events flown under official ama competition regulations rules, excluding takeoff and ...