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 1servos. Electric conversion: optional.
GROB TUTOR G115 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. You will find that most of the work has been done for you already.
www.seagullmodels.com KIT CONTENTS. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Fuselage Canopy Left wing panel Right wing panel Tail set Aluminum wing tube Scale pilot Seat (2) Landing gear Wheels (3) Fuel tank Nose gear Wheel pants (3) EP conversion pack Hardware bag included Fiberglass cowl HINGING THE FLAP . Note: The control surfaces, including the ailerons, elevators, and rudder, are prehinged with hinges installed, but the hinges are not glued in place.
GROB TUTOR G115 Hinge. 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 medium pressure, trying to separate the flap from the wing panel. Use caution not to crush the wing structure. 4)Deflect the flap and completely saturate each hinge with thin C/A glue. The ailerons front surface should lightly contact the wing during this procedure.
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. Hinge. 4)Deflect the aileron and completely saturate each hinge with thin C/A glue. The ailerons front surface should lightly contact the wing during this procedure.
GROB TUTOR G115 8) After both ailerons are securely hinged, 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 the aileron from the wing panel. Use caution not to crush the wing structure. Instruction Manual. WING TIP ASSEMBLY. Covering. Wing tip. Note: Work the aileron up and down several times to “work in” the hinges and check for proper movement. HINGING THE ELEVATORS.
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. 3) Place epoxy into hole. This will harden the threads and prevent the crews from pulling loose. 4) Thread a control horn end with aluminum washer, lock nut until the top edge of the end is 18mm from the vase of the horn as shown. Masking tape. CONTROL HORN M3 SCREW. Epoxy. ALUMINUM WASHER. Wing M3 LOCK NUT. ALUMINUM WASHER. Sealing iron.
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. Epoxy. 3x30mm. ALUMINUM WASHER. 3mm. M3 LOCK NUT. ALUMINUM WASHER. CONTROL HORN M3 14mm . Epoxy. Aluminum Washer. Epoxy. Horizontal Stabilizer. Elevator. Aluminum Washer. M3 LOCK NUT.
www.seagullmodels.com CONTROL HORN M3 SCREW. Epoxy. Horizontal Stabilizer. Elevator. 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 as same as steps done for ailerons. Rudder control horn. 1 sets. 3x30mm. ENGINE MOUNT INSTALLATION. 1) Locate the items necessary to install the engine mount included with your model. . 3mm. 4x30mm.
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. Thread locker glue. Screw. Vent tube. Fuel pick up tube. Fuel fill tube. INSTALLING THE STOPPER ASSEMBLY. 1) Using a modeling knife, carefully cut off the rear portion of one of the 3 nylon tubes leaving 1/2” protruding from the rear of the stopper.
www.seagullmodels.com FUEL TANK INSTALLATION. vent tube. Fuel pick-up tube. You should mark which tube is the vent 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. 7) Slide the fuel tank into the fuselage. Guide the lines from the tank through the hole in the firewall. Tie wrap. Fuel fill tube. 10) Connect the lines from the tank to the engine and muffler.
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. MOUNTING THE ENGINE. Elevator servo arm. 1) Position the engine with the drive washer (110mm) forward of the firewall as shown. Throttle servo arm. Rudder servo arm. INSTALLING THE SWITCH.
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. 2mm 3) Use a drill to drill the four holes in the engine mount rails. Trim and cut. Machine screw M3x25mm. 2mm diameter. 4) On the fire wall has the location for the throttle pusshrod tube (pre-drill). Linkage. Pushrod tube hole.
GROB TUTOR G115 Instruction Manual. 1 3 Screw. . LANDING GEAR INSTALLATION: A. NOSE GEAR: 1) Locate the items necessary to attach the nose landing gear that are included with your model. 4-5mm. 1 3 5 1 4 2 3 Thread locker glue. 5 1 4 5 1 3 Screw. .
www.seagullmodels.com 2 4 5 M2 clevis. 2) Install landing gear at the top Fuselage. Screw. . Adjustable connector.
GROB TUTOR G115 Instruction Manual. COWLING. 1) Slide the fiberglass cowl over the engine 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. 2) Install lights at the top Cowling. Trim and cut. Trim and cut. 5mm.
www.seagullmodels.com Because of the size of the cowl, it may be necessary to use a needle valve extension for the high speed needle valve. Make this out of sufficient 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. 3) While keeping the back edge of the cowl flush with the marks, align the front of the cowl with the crankshaft of the engine.
GROB TUTOR G115 ELECTRIC POWER CONVERSION 1) Locate the items neccessary to install the electric power conversion included with your model. Instruction Manual. 3) Attach the motor to the front of the electric motor box using four 4mm blind nut, four M4x15mm hex head bolts to secure the motor. Please see picture shown. 4mm. Recommen the items neccssary to install the electric power conversion parts included with your model.
www.seagullmodels.com Epoxy Electric Motor 5) Attach the speed control to the side of the motor box using two-sided tape and tie wraps. 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. 135mm. Balsa sticks Epoxy INSTALLING THE SPINNER. Install the spinner backplate, propeller and spinner cone. 4) Locate the plywood battery tray to the fuselage.
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 may need to adjust the size of the precut opening in the mount. The notch in the sides of the mount allow the servo lead to pass through. 5) Use dental floss to secure the connection so they cannot become unplugged.
www.seagullmodels.com 8) A string has been provided in the wing to pull the aileron lead through to the wing root. Remove the string from the wing at the servo location and use the tape to attach it to the servo extension lead. Pull the lead through the wing and remove the string. Small weight. Small weight. String. Electric wire. 9) Set the aileron hatch in place and use a Phillips screw driver to install it with four wood screws.
GROB TUTOR G115 Instruction Manual. AILERON PUSHROD HORN INSTALLATION 2) Make a 90-degree bend at the mark and cut off the excess wire leaving 8mm past the bend. M2 lock nut. Pen. Metal clevis. 8mm Snap keeper. Mark. Servo arm. 1) Mark the control wire where it crosses the servo arm hole. Snap keeper. 3) Connect the linkage as shown and secure the control wire with a snap keeper. Bend at the mark. Wing. M2 lock. 8mm. Cut. Aileron.
www.seagullmodels.com FLAG PUSHROD HORN INSTALLATION wheel. Repeat the procedure for the aileron servo. wheel collar. Washer. nut. M2 lock. M3. Axle. M3. wheel Pant. Wing. Flag. Lite -Plywood block. WHEEL AND WHEEL PANTS. 1) Assemble and mounting the landing gear ,wheels to the wheel pants as shown in the following pictures. Wheel Collar. Landing Gear. Nut. Axle. Wheel. Nut. (2) Washer. Wheel Pant. Landing Gear. wheel Pant. C/A glue.
GROB TUTOR G115 3) A drop of C/A glue on the wheel collar screws will help keep them from coming lose during operation. Instruction Manual. INSTALLING THE HORIZONTAL STABILIZER. 1) Using a ruler and a pen, locate the centerline of the horizontal stabilizer, at the trailing edge, and place a mark. Use a triangle and extend this mark, from back to front, across the top of the stabilizer. Also extend this mark down the back of the trailing edge of the stabilizer. Draw center line.
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. Pen. 7) Remove the stabilizer. Using the lines you just drew as a guide, carefully remove the covering from between them using a modeling knife. 10) After the epoxy has fully cured, remove the masking tape or T-pins used to hold the stabilizer in place.
GROB TUTOR G115 Instruction Manual. Epoxy. 2) 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. Using a triangle, check to ensure that the vertical stabilizer is aligned 90º to the horizontal stabilizer. Horizontal Stabilizer. 90º Vertical Stabilizer. Epoxy. Epoxy.
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 control rods. 4) Elevator and rudder pushrods assembly as pictures below. Pen. 652mm. Cut. Control horn. Metal clevis. Elevator pushrod. M2 lock nut. 8mm. Wire keeper. 8mm. 8mm.
GROB TUTOR G115 Instruction Manual. RUDDER PUSHROD HORN INSTALLATION. Wire keeper. 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. (or you can order others scale pilot figures made by Seagull factory. They are available at Seagull distributors.
www.seagullmodels.com 1 C/A glue. INSTALL THE PLASTIC PARTS. 1) Locate the items neccessary to install the plastic parts included with your models: 1. 25mm 2. 2. Epoxy. 3 2 Epoxy. 3) Position the canopy onto the fuselage. Trace around the canopy and onto the fuselage using a felt-tipped pen. 3. 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. Please see pictures below.
GROB TUTOR G115 Instruction Manual. Battery. Tie wrap. 4mm. Receiver. ATTACHMENT WING-FUSELAGE. Attach the aluminium tube into fuselage. 2 C/A glue. APPLY THE DECALS. 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. Position decal on the model where desired, using the photos on the box and aid in their location. Wing tube. Insert two wing panels as pictures below.
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” and you must add weight* to the nose. If the nose drops, it is “nose heavy” and you must add weight* to the tail to balance. BALANCING. 1) It is critical that your airplane be balanced correctly.
GROB TUTOR G115 Instruction Manual. FLIGHT PREPARATION. PREFLIGHT CHECK. Check the operation and direction of the elevator, rudder, ailerons and throttle. 1) Completely charge your transmitter and receiver batteries before your first day of flying. A) Plug in your radio system per the manufacturer's instructions and turn everything on. B) Check the elevator first. Pull back on the elevator stick. The elevator halves should move up.
