ASSEMBLY MANUAL Specifications Wingspan ------------------------------------------- 54.3 in -------------------------- 138cm. Wing area --------------------------------------- 992 sq.in ----------------------- 64 sq.dm. Weight ----------------------------------------- 9.2-10.6lbs -----------------------4.2-4.8kg. Length ------------------------------------------------ 59.4 in -------------------------- 151cm. Recommended engine size ---------- .91-1.25 cu.in ----------------------- 2-4stroke.
ULTIMATE. Instruction Manual. INTRODUCTION. Thank you for choosing the ULTIMATE ARTF by SEAGULL MODELS. The ULTIMATE 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 NOTE: To avoid scratching your new aeroplane we suggest that you cover your workbench with an old towel. Keep a couple of jars or bowls handy to hold the small parts after you open the bags. Please trial fit all parts. Make sure you have the correct parts and that they fit and are aligned properly before gluing! This will ensure proper assembly as the ULTIMATE is made from natural materials and minor adjustments may have to be made.
ULTIMATE. Instruction Manual. HINGING THE AILERONS. Note: The control surfaces, including the ailerons, elevators, and rudder, are prehinged with hinges installed, but the hinges are not glued in place. It is imperative that you properly adhere the hinges in place per the steps that follow using a high-quality thin C/A glue. T-pin. ! 1) Carefully remove the aileron from one of the wing panels. Note the position of the hinges. T-pin.
www.seagullmodels.com HINGING THE RUDDER. Glue the rudder hinges in place using the same tectniques used to hinge the ailerons. C/A glue. ! 6) Using C/A remover/debonder and a paper towel, remove any excess C/A glue that may have accumulated on the wing or in the aileron hinge area. ! 7) Repeat this process with the other wing panel, securely hinging the aileron in place.
ULTIMATE. Thread. Instruction Manual. Lower wing bottom. Small weight. Attach the string to the servo lead and carefully thread it though the wing. Once you have thread the lead throught the wing, remove the string so it can use for the other servo lead. Tape the servo lead to the wing to prevent it from falling back into the wing. Electric wire. Pull. Electric wire. Thread. Lower wing panel bottom. Thread. Plastic tape. Aileron electric. Repeat the procedure for orther wing haft.
www.seagullmodels.com 2 sets. 1 3x40mm. Wing bottom. 1-1 Lower wing bottom. drill hole 3.2mm. Repeat the procedure for the other aileron servo. Wing bottom. Parts requirement. See pictures below: 3x30mm. 1-1 1 Wing bottom. 1-1 1 1-1 1.8x180mm. M2 clevis. Cut. M2 lock nut. Snap keeper.
ULTIMATE. Instruction Manual. Upper wing bottom. 2 1-1 Grind. Lower wing top. 2 1-1 Drill hole1.5mm. Repeat the procedure for the other wing haft. Cut. 2 INSTALLING THE AILERON LINKAGE (UPPER WING). 2 2 Repeat the procedure for the other wing half. ENGINE MOUNT. See pictures below: Parts requirement. See pictures below: 3x30mm. 4x30mm. 2 Mark and drill 4 holes for engine mount.
www.seagullmodels.com Fuel Pick-up Tube. FUEL TANK. 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. This will be the fuel pick up tube. ! 2) Using a modeling knife, cut one length of silicon fuel line. Connect one end of the line to the weighted fuel pick up and the other end to the nylon pick up tube. ! 3) Carefully bend the second nylon tube up at a 45º angle.
ULTIMATE. Instruction Manual. Blow through one of the lines to ensure the fuel lines have not become kinked inside the fuel tank compartment. Air should flow through easily. WHEEL AND WHEEL PANTS. 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. ! 1) Assemble and mounting the wheel pants as shown in the following pictures.
www.seagullmodels.com ! 3) You have to trim each axles and using a tool cutting and cut-off wheel. Caution when cutting the axles wear protective goggles. Landing gear. 57mm. ! 4) A drop of C/A glue on the wheel collar screws will help keep them from coming lose during operation. Repeat the process for the other wheel. Plywood Washer. INSTALLING THE MAIN LANDING GEAR. !1) The blind nuts for securing the landing gear are already mounted inside the fuselage.
ULTIMATE. Instruction Manual. MOUNTING THE ENGINE. ! 1) Install the pushrod housing through the predrilled hole in the firewall and into the servo compartment. The pushrod housing should protrude 1/4" out past the front of the firewall. Make a Z-Bend 1/4" from one end of the plain wire pushrod. 4x30mm. ! 2) Place your engine onto the engine mount. Adjust the engine is centered of the edges of the engine case. ! 3) When you are satisfied with the alignment, mark the locations of the engine mounting.
www.seagullmodels.com INSTALLING THE SPINNER. Install the spinner backplate, propeller and spinner cone. The propeller should not touch any part of the spinner cone. If it does, use a sharp modeling knife and carefully trim away the spinner cone where the propeller comes in contact with it. ! 3) Install the muffler and muffler extension onto the engine and make the cutout in the cowl for muffler clearance. Connect the fuel and pressure lines to the carburetor, muffler and fuel filler valve.
ULTIMATE. Instruction Manual. Remove covering. ! 4) 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. Switch. Pen. 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.
www.seagullmodels.com ! 7) When you are sure that everything is aligned correctly, mix up a generous amount of 30 Minute Epoxy. Apply a thin layer to the top and bottom of the stabilizer mounting area and to the stabilizer mounting platform sides in the fuselage. Slide the stabilizer in place and realign. Double check all of your measurements once more before the epoxy cures. Hold the stabilizer in place with T-pins or masking tape and remove any excess epoxy using a paper towel and rubbing alcohol.
ULTIMATE. Instruction Manual. Set the stabilizer in place and realign. Double check all of your measurements once more before the epoxy cures. Hold the stabilizer in place with T-pins or masking tape and remove any excess epoxy using a paper towel and rubbing alcohol. Allow the epoxy to fully cure before proceeding. Pen. Rudder. ! 4) Remove the stabilizer. Using a modeling knife, remove the covering from below the lines you drew.
www.seagullmodels.com ! 3) Position the rudder horn on the both side of rudder. The clevis attach- ment holes should be positioned over the hinge line. ! 4) Using a 1.5mm drill bit and the control horns as a guide, drill the mounting holes through the rudder halves. ! 5) Mount the control horns by inserting the bolts through the control horn bases and elevator halves, then into the mounting backplates. Do not overtighten the nuts or the backplates may crush the wood. Left side. Rudder control horn. Cable.
ULTIMATE. Instruction Manual. THROTTLE SERVO ARM INSTALLATION. Left side. ! 1) Install adjustable servo connector in the servo arm. Adjustable Servo connector. Servo arm. Elevator control horn. ! 2) Install the rubber grommets and brass collets onto the throttle servo. Test fit the servo into the throttle servo mount. ELEVATOR PUSHROD INSTALLATION. Because the size of servos differ, you may need to adjust the size of the precut opening in the mount.
www.seagullmodels.com Horizontal stabilizer. 3x10mm. 3.2mm drill bit. Aluminium strap. 3 Turnbuckle. Plastic clip. 4 M3 lock nut. 3 0cm. 7.5cm. 17.3cm.
ULTIMATE. Instruction Manual. 3x20mm. MOUNTING THE TAIL WHEEL. 33mm. ! 2) Set the tail wheel assembly in place. The pivot point of the tail wheel wire should be even with the rudder hinge line and the tail wheel bracket should be on the plywood plate. ! 3) Using a pen, mark the locations of the four mounting screws. Remove the tail wheel bracket and tiller and drill 1mm pilot holes at the locations marked. ! 1) You have to trim each axles and using a tool cutting and cut-off wheel.
www.seagullmodels.com ! 3) Secure the cabane into position using 4 socket head bolts ( Type A). CABANE STRUT INSTALLATION. 2 pcs. 2 pcs. 4 pcs. (C) 3x15mm(2pcs). (D) 3x15mm(8pcs). (A) 4x15mm(4pcs). (B) 3x10mm(16pcs). ! 4) Install the cross braces. Secure the rear of braces using socket head bolts (type B). ! 1) Remove the covering in the top of the fuselage for the cabane struts. THE CENTER RIB INSTALLATION. Remove the covering. B ! 2) Slide the cabane into position.
ULTIMATE. Instruction Manual. Lower wing. B C Wing bolts. ATTACHMENT WING. F See pictures below: (E) 45cm. (F) 30cm. Upper wing.
www.seagullmodels.com B 2 sets. D 5 D B 6 INSTALLING THE AILERON LINKAGE (UPPER-LOWER MAIN WING). Parts requirement. See pictures below: 1.8x300mm. M2 clevis. INTERPLANE STRUT INSTALLATION. Place on strut into position. Make sure the curves on the strut follow the airfoil of the wings. M2 lock nut. Snap keeper.
ULTIMATE. Instruction Manual. C B B’ D C’ D’ 7 8 A=A’ B=B’ C=C’ D=D’ E=E’ F=F’ G=G’ INSTALLING THE RECEIVER. ! 1) Plug the six servo leads and the switch lead into the receiver. Plug the battery pack lead into the switch also. ! 2) Wrap the receiver and battery pack in the protective foam rubber to protect them from vibration. INSTALLING THE CANOPY HATCH. ! 3) Route the antenna in the antenna tube inside the fuselage and secure it to the bottom of fuselage using a plastic tape. BALANCING.
www.seagullmodels.com hub, similar to those offered by Harry Higley. When balanced correctly, the airplane should sit level or slightly nose down when you lift it up with your fingers. CG=12.5-15cm. ! 4) By moving the position of the adjustable control horn out from the control surface, you will decrease the amount of throw of that control surface. Moving the adjustable control horn toward the control surface will increase the amount of throw. FLIGHT PREPARATION.
ULTIMATE. !5) If your radio transmitter is equipped with dual rate switches double check that they are on the low rate setting for your first few flights. !6) Check to ensure the control surfaces are moving the proper amount for both low and high rate settings. !7) Check the receiver antenna. It should be fully extended and not coiled up inside the fuselage. !8) Properly balance the propeller. An out of balance propeller will cause excessive vibration which could lead to engine and/or airframe failure.
