GREAT PLANES PT-19 Instruction Manual
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GREAT PLANES PT-19 Instruction Manual

Sport scale .46/ep arf
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SPORT SCALE .46/EP ARF
SPECIFICATIONS
Wingspan: 56.5 in [1435mm]
Length: 46.2 in [1173mm]
Weight: 80– 88 oz [2268– 2495 g]
WARRANTY
Great Planes
®
Model Manufacturing Co. guarantees this kit to
be free from defects in both material and workmanship at the
date of purchase. This warranty does not cover any component
parts damaged by use or modification. In no case shall Great
Planes' liability exceed the original cost of the purchased kit.
Further, Great Planes reserves the right to change or modify this
warranty without notice.
In that Great Planes has no control over the final assembly or
material used for final assembly, no liability shall be assumed nor
accepted for any damage resulting from the use by the user of
READ THROUGH THIS MANUAL BEFORE STARTING CONSTRUCTION. IT CONTAINS IMPORTANT
INSTRUCTIONS AND WARNINGS CONCERNING THE ASSEMBLY AND USE OF THIS MODEL.
© 2017 Great Planes Model Mfg. A subsidiary of Hobbico,
Wing Area: 536.7 in
Wing Loading: 21.5 – 23.6 oz/ft
[65.5 – 72.0 g /dm
®
Inc.

INSTRUCTION MANUAL

2
2
[34.62 dm
]
Engine: .46 – .55 cu in 2-stroke, .70 cu in 4-stroke
[7.5 – 9.0cc 2-stroke, 11.5cc 4-stroke]
2
Motor: 1.65 in [42mm] 925W, Edge Lite 75 ESC
2
]
Radio: 4 – 5 ch. radio, 4 – 5 servos
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 use of this product, the buyer is advised to return
this kit immediately in new and unused condition to the
place of purchase.
To make a warranty claim contact:
greatplanes.com/support
GPMA1212

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Summary of Contents for GREAT PLANES PT-19

  • Page 1: Instruction Manual

    To make a warranty claim contact: In that Great Planes has no control over the final assembly or greatplanes.com/support material used for final assembly, no liability shall be assumed nor accepted for any damage resulting from the use by the user of READ THROUGH THIS MANUAL BEFORE STARTING CONSTRUCTION.

  • Page 2: Table Of Contents

    Glow Engine model memory: Tactic TTX660 6-channel programmable radio The PT-19 is suited for a .45 - .55 cu. in. 2-stroke or .70 cu. (TACJ2660) in 4-stroke. The O.S. Max .46AXII (OSMG0548) is illustrated Tactic TR625 6-chanel receiver (TACL0625) in this manual.

  • Page 3: Brushless Electric Motor

    *NOTE: The PT-19 has been tested with the servos and ESC and the time the model was removed from the box. The 21 recommended in this instruction manual.

  • Page 4: Kit Contents

    8. Vertical Stabilizer 12. Fastener Hardware Bag 15. Pilot (not shown) NOTE: The covering on your PT-19 requires less heat than PREPARATION you may be used to if you’re already familiar with iron-on coverings – too much heat causes seams and edges to pull and draw away from each other causing wavy, uneven edges or exposed balsa.

  • Page 5: Assemble The Wing

    Residual CA or CA “fog” is removable with a paper towel square dampened with CA debonder. 4. If powering your PT-19 with a glow engine, apply a fi lm 2. If your servo is too large for the servo opening in the...

  • Page 6: Join The Wing Halves

    gear wire. Position the holes in the landing gear straps on the lines and mark the locations of the holes onto the wing. 3. Cut the covering from the hole in the top of the wing for the servo wire. 4.
  • Page 7 3. Test-fi t both wing halves together with the wing joiner and the pin. Make any adjustments necessary for a good fi t. 5. Use a small clamp to clamp the front of the wing together at the tab and plenty of masking tape to tightly clamp the rest of the wing together.

  • Page 8: Mount The Landing Gear

    Mount the Landing Gear 3. Mount the wheels to the gear with a 4mm collar on both sides of each wheel held in place with an M3 set screw and threadlocker. 1. Install the landing gear wires into the landing gear rails. Secure the gear with the straps and M3 x 10 sheet metal screws—don’t over tighten the screws –...
  • Page 9 2. If powering your PT-19 with a brushless motor, cut the 5. Test-fi t the CA hinge and the tail gear into the rudder. covering from the air exit vents in the bottom of the fuselage. For a better fi nish, cut the covering about 1/32" [1mm] inside the edges of each opening and use a trim iron with a rounded tip to seal the covering neatly down around the edges.

  • Page 10: Install The Electric Motor

    10. Mix up a batch of 30-minute epoxy. First apply epoxy 15. With threadlocker on the M3 set screws, use a 1.5mm to the tail gear wire where it goes into the rudder and in the wrench to tighten the collar up against the tail gear bracket rudder.
  • Page 11 7. Connect your ESC to the motor and mount the ESC to the bottom of the motor mount box—for the Castle Creations Edge Lite 75 ESC we soldered the female bullet connectors that came with the motor to the three motor wires (protected with 3/16"...

  • Page 12: Mount The Glow Engine

    6. Use a Great Planes Dead-Center Hole Locator or similar tool to mark the engine mount bolt hole locations onto the mount.

  • Page 13: Hook Up The Throttle

    Hook Up the Throttle Install the Fuel Tank 1. Glue together the two plywood fuel tank neck rings. Then, glue them to the back of the fi rewall aligned with the hole in the fi rewall. Refer to these images while hooking up the throttle. 1.

  • Page 14: Fit The Cowl Over The Engine

    3. Make a fuel tank strap from a 7" [180mm] piece of the 5. Install the fuel tank with the lines through the hole in softer, “loop” side and a 9" [230mm] piece of the rougher, the fi rewall. Then, tightly strap the tank into place. “hook”...
  • Page 15 Follow these instructions with deviations as necessary for your comfort level and requirement for accuracy. 3. Use your Dremel to cut the fi rst hole at your mark. Test- fi t the cowl. Use a felt-tip pen to mark the outside of the cowl where more trimming is required.

  • Page 16: Mount The Cowl

    5. After all four holes have been drilled, remove the cowl. Mount the Cowl Enlarge the holes in the cowl with a 3/32" [2.4mm] drill. Decide whether you wish to attach the cowl to the fuselage 6. Test-mount the cowl with the screws. Remove the cowl with four sheet metal screws through the sides, or with a and screws.

  • Page 17: Finish Cutting The Cowl

    the propeller and the cowl. Make adjustments if necessary. Finish Cutting the Cowl (The outside edges of the cowl ring may be sanded slightly to allow the cowl to go on a little farther if necessary.) 5. Remove the cowl and take the cowl ring off the fuselage. Use medium-grit sandpaper to roughen the inside of the cowl where the cowl ring fi ts.
  • Page 18 MUFFLER INSTALLATION TIP When fi tting the muffl er and muffl er extension (OSMG2578), lay the model on its side so the muffl er screws and extension won’t fall off the engine. Once the cowl has been installed, fi t the muffl er bolts and muffl er extension to the engine. Connect the pressure line from the fuel tank to the fi tting on the muffl er, then fi t the muffl er and tighten the screws.

  • Page 19: Install The Radio

    [1.6mm] holes through the rudder. Mount the rudder horn with two M2 x 10 sheet-metal screws. Remove the screws, add a few drops of thin CA into the holes, allow to harden, then mount the horn again. Here’s a couple images of the fi nished cowl. Install the Radio 3.

  • Page 20: Scale Details

    5. Make a 90-degree bend in the pushrod wire at the Scale Details marks – it will be easier to make the bends with the pushrods out of the fuselage. Connect the pushrods to the servo arms and snap on a 90-degree pushrod keeper. Then, cut off the excess wire and install the servo arms back onto the servos.

  • Page 21: Prepare The Model For Flight

    1. Prop up the fuselage so the stab will be level. Measure 2. Use a Great Planes C.G. Machine to balance the model and compare the throws to the recommended throws provided. Note: the throws are measured at the widest part of the according to the measurements specifi ed, or mark the balance elevator and rudder.

  • Page 22: Balance The Model Laterally

    We’ve also fl own the PT-19 with a 13 x 10E on 4S which gives off a great deal of deadly carbon monoxide. Therefore peps it up noticeably.

  • Page 23: Battery Precautions

    General The PT-19 doesn’t exhibit any particular characteristics that you need to be aware of ahead of time. The PT-19 fl ies quite 1) I will not fl y my model aircraft in sanctioned events, honestly and has no unusual tendencies. Same as any tail...

  • Page 24: Range Check

    E / C B/1000 / (A/60) FORMULAS Flight Time Recharge Battery Target Capacity Recommended Avg. In-Flight mAh/minute (.10 ths ) Capacity Capacity to Use in Flight Flight Time Current © 2017 Great Planes Model Mfg. A subsidiary of Hobbico, ® Inc. GPMA1212...

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