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Seagull Models GROB TUTOR G115 Assembly Manual

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MS:144
ASSEMBLY MANUAL
"Graphics and specifications may change without notice".
Specifications:
Wing span -------------------------66.9in (170.0cm)
Wing area --------------548.7sq.in (35.4sq dm)
Weight -------------------------------7.1-8.4lbs (3.2-3.8kg)
Length ---------------------------48.6in (123.5cm)
Engine -------------0.46 - .0.55 cu.in -----2-stroke.
0.72 - 0.82cu.in -----4-stroke.
Radio ----------------- 6 channels with 7 servos.
1
Electric conversion: optional.

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Summary of Contents for Seagull Models GROB TUTOR G115

  • Page 1 www.seagullmodels.com MS:144 ASSEMBLY MANUAL “Graphics and specifications may change without notice”. Specifications: Wing span -------------------------66.9in (170.0cm) Wing area --------------548.7sq.in (35.4sq dm) Weight -------------------------------7.1-8.4lbs (3.2-3.8kg) Length ---------------------------48.6in (123.5cm) Engine -------------0.46 - .0.55 cu.in -----2-stroke. 0.72 - 0.82cu.in -----4-stroke. Radio ----------------- 6 channels with 7 servos. Electric conversion: optional.

  • Page 2: Kit Contents

    Instruction Manual. INTRODUCTION. Thank you for choosing the GROB TUROR G115 ARTF by SEAGULL MODELS COMPANY LTD. The GROB TUROR G115 was designed with the intermediate/advanced sport flyer in mind. It is a semi scale airplane which is easy to fly and quick to assemble. The airframe is conventionally built using balsa, plywood to make it stronger than the average ARTF , yet the design allows the aeroplane to be kept light.

  • Page 3: Additional Items Required

    www.seagullmodels.com KIT CONTENTS. HINGING THE FLAP . Fuselage Note: The control surfaces, including the Canopy ailerons, elevators, and rudder, are Left wing panel prehinged with hinges installed, but Right wing panel Tail set the hinges are not glued in place. It Aluminum wing tube is imperative that you properly Scale pilot...

  • Page 4: Hinging The Ailerons

    GROB TUTOR G115 Instruction Manual. 8) After both flap are securely hinged, firmly grasp the wing panel and flap to make sure the hinges are securely glued and cannot be pulled out. Do this by carefully applying Hinge. medium pressure, trying to separate the flap from the wing panel.
  • Page 5 www.seagullmodels.com T-pin. Hinge. 3) Slide the aileron on the wing panel until there is only a slight gap. The hinge is now centered on the wing panel and aileron. Remove the T-pins and snug the aileron against the wing panel. A gap of 1/64” or less should be maintained between the wing panel and aileron.

  • Page 6: Hinging The Elevators

    GROB TUTOR G115 Instruction Manual. 8) After both ailerons are securely hinged, WING TIP ASSEMBLY. firmly grasp the wing panel and aileron to make sure the hinges are securely glued and cannot be pulled out. Do this by carefully applying medium pressure, trying to separate Covering.
  • Page 7 www.seagullmodels.com 2) Position the control horn on the bottom of the aileron. You will see pre-drill hole 3mm for the horn mounting screw on the aileron. Place epoxy into hole. This will harden the threads and prevent the crews from pulling loose.
  • Page 8 GROB TUTOR G115 Instruction Manual. 2 sets. 3x30mm. Flap control horn. INSTALL ELEVATOR CONTROL HORN. 3mm. Install the elevator control horn using the same method as same as the aileron control horns. 1 sets. CONTROL HORN M3 SCREW. 3x30mm. Epoxy.

  • Page 9: Engine Mount Installation

    www.seagullmodels.com CONTROL HORN Epoxy. M3 SCREW. Horizontal Elevator. Stabilizer. 14mm Aluminum Washer. Epoxy. Rudder Elevator control horn. Aluminum Washer. M3 LOCK NUT Epoxy. Rudder 14mm INSTALL RUDDER CONTROL HORN. Repeat steps to install the rudder control horn Rudder control horn. as same as steps done for ailerons.

  • Page 10: Installing The Stopper Assembly

    GROB TUTOR G115 Instruction Manual. 2) Use four 4x30mm head bolts and four 4mm washers to attach the engine mount rails to the firewall. Tighten the screws . Make sure to use threadlock on the screws to help prevent them from vibrating loose.

  • Page 11: Fuel Tank Installation

    www.seagullmodels.com FUEL TANK INSTALLATION. vent tube. Fuel pick-up tube. You should mark which tube is the vent Fuel fill tube. and which is the fuel pickup when you attach fuel tubing to the tubes in the stopper. Once the tank is installed inside the fuselage, it may be difficult to determine which is which.

  • Page 12: Mounting The Engine

    GROB TUTOR G115 Instruction Manual. Elevator servo. Trim and cut. Throttle servo. Rudder servo. THROTTLE SERVO ARM INSTALLATION. Switch. Install adjustable servo connector in the servo arm as same as picture below: Loctite secure. Adjustable Servo connector. Servo arm. Nut.
  • Page 13 www.seagullmodels.com 7) Slide the throttle pushrod wire into the tube. Position the engine between the mounts. Use four 3x25mm machine screws to secure the engine to the mount as shown. Pushrod wire. 3) Use a drill to drill the four holes in the engine Trim and cut.

  • Page 14: Landing Gear Installation

    GROB TUTOR G115 Instruction Manual. Screw. LANDING GEAR INSTALLATION: A. NOSE GEAR: 1) Locate the items necessary to attach the nose landing gear that are included with your 4-5mm. model. Thread locker glue. Screw.
  • Page 15 www.seagullmodels.com M2 clevis. Screw. 2) Install landing gear at the top Fuselage. Adjustable connector.
  • Page 16 GROB TUTOR G115 Instruction Manual. COWLING. 1) Slide the fiberglass cowl over the en- gine and line up the back edge of the cowl with the marks you made on the fuselage then trim and cut as shown. Trim and cut.
  • Page 17 www.seagullmodels.com Because of the size of the cowl, it may be nec- essary to use a needle valve extension for the high speed needle valve. Make this out of suf- ficient length 1.5mm wire and install it into the end of the needle valve. Secure the wire in place by tightening the set screw in the side of the needle valve.
  • Page 18 GROB TUTOR G115 Instruction Manual. 3) Attach the motor to the front of the electric ELECTRIC POWER CONVERSION motor box using four 4mm blind nut, four M4x15mm hex head bolts to secure the motor. 1) Locate the items neccessary to install the Please see picture shown.

  • Page 19: Installing The Spinner

    www.seagullmodels.com 5) Attach the speed control to the side of the Epoxy motor box using two-sided tape and tie wraps. Electric Motor Connect the appropriate leads from the speed control to the motor. Make sure the leads will not interfere with the operation of the motor. Speed control.

  • Page 20: Installing Aileron Servos

    GROB TUTOR G115 Instruction Manual. INSTALLING THE AILERON. 4) Apply 2-3 drops of thin C/A to each of the mounting holes. Allow the C/A to cure without using accelerator. Servos. Small weight. Thread. Because the size of servos differ, you...
  • Page 21 www.seagullmodels.com 8) A string has been provided in the wing to pull the aileron lead through to the wing root. Small weight. Remove the string from the wing at the servo location and use the tape to attach it to the servo extension lead.
  • Page 22 GROB TUTOR G115 Instruction Manual. 2) Make a 90-degree bend at the mark and cut AILERON PUSHROD HORN INSTALLATION off the excess wire leaving 8mm past the bend. Metal clevis. M2 lock nut. Pen. Snap keeper. Mark. Servo arm. 1) Mark the control wire where it crosses the servo arm hole.
  • Page 23 www.seagullmodels.com FLAG PUSHROD HORN INSTALLATION wheel. wheel collar. Repeat the procedure for the Washer. aileron servo. nut. Axle. M2 lock. wheel Pant. Wing. Flag. Lite -Plywood WHEEL AND WHEEL PANTS. block. Wheel Collar. 1) Assemble and mounting the landing Landing Gear. gear ,wheels to the wheel pants as shown in the following pictures.

  • Page 24: Installing The Horizontal Stabilizer

    GROB TUTOR G115 Instruction Manual. 3) A drop of C/A glue on the wheel collar INSTALLING THE HORIZONTAL STABILIZER. screws will help keep them from coming lose during operation. 1) Using a ruler and a pen, locate the centerline of the horizontal stabilizer, at the trail- ing edge, and place a mark.

  • Page 25: Installing The Vertical Stabilizer

    www.seagullmodels.com 6) With the stabilizer held firmly in place, use a pen and draw lines onto the stabilizer where it and the fuselage sides meet. Do this on both the right and left sides and top and bottom of the stabilizer. Epoxy.
  • Page 26 GROB TUTOR G115 Instruction Manual. Epoxy. While holding the vertical stabilizer firmly in place, use a pen and draw a line on each side of the vertical stabilizer where it meets the top of the fuselage. 3) Slide the vertical stabilizer back in place.
  • Page 27 www.seagullmodels.com Elevator control horn. Rudder control horn. 3) Thread one clevis and M2 lock nut on to each elevator control rod. Thread the horns on until they are flush with the ends of the con- trol rods. 4) Elevator and rudder pushrods assembly as pictures below.
  • Page 28 GROB TUTOR G115 Instruction Manual. RUDDER PUSHROD HORN Wire keeper. INSTALLATION. Rudder control horn. Elevator pushrod. Rudder pushrod. Elevator control horn. INSTALLATION PILOT. Pen. 1) A scale pilot is included with this ARF. The Seagull Pilot included fitting well to the cockpit.

  • Page 29: Install The Plastic Parts

    www.seagullmodels.com C/A glue. INSTALL THE PLASTIC PARTS. 1) Locate the items neccessary to install the plastic parts included with your models: 25mm Epoxy. Epoxy. 2) Position the plastic parts onto the canopy and fuselage and apply C/A glue and hold the plastic parts secure until the glue fully cures.

  • Page 30: Apply The Decals

    GROB TUTOR G115 Instruction Manual. Battery. Tie wrap. 4mm. Receiver. ATTACHMENT WING-FUSELAGE. Attach the aluminium tube into fuselage. C/A glue. APPLY THE DECALS. Wing tube. 1) If all the decals are precut and ready to stick. Please be certain the model is clean and free from oily fingerprints and dust.

  • Page 31: Control Throws

    www.seagullmodels.com With the wing attached to the fuselage, all parts of the model installed ( ready to fly), and empty fuel tanks, hold the model at the marked balance point with the stabilizer level.. Lift the model. If the tail drops when you lift, the model is “tail heavy”...

  • Page 32: Flight Preparation

    2) Check every bolt and every glue joint thing on. in the GROB TUTOR G115 to ensure that everything is tight and well bonded. B) Check the elevator first. Pull back on the elevator stick. The elevator halves should 3) Double check the balance of the air- move up.

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