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Seagull Models Sparrow Hawk SEA-93 Instruction Manual

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SPARROW HAWK
"Graphics and specfications may change without notice".
Specifications
Wingspan----------------------------------- 63 in ---------------------------------- 160cm.
Wing area------------------------------------746.6 sq.in ------------------- 48.2 sq.dm.
Approximate flying weight--------------7.9-8.8 lbs --------------------------3.6-4kg.
Length--------------------------------------- 54.7 in -------------------------------- 139cm.
Recommended engine size----------.0.61 -0.75 cu.in -------------------2-stroke.
ELECTRIC CONVERSION : OPTIONAL.
Radio System required 4 channels with 6 servos.
Flying skill level Intermediate/advanced.
Kit features.
Ready-made—minimal assembly & finishing required.
Ready-covered covering.
Photo-illustrated step-by-step Assembly Manual.
Made in Vietnam.
ASSEMBLY MANUAL
1.00-1.10 cu.in ----------------- 4-stroke.
MS: SEA 93

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Summary of Contents for Seagull Models Sparrow Hawk SEA-93

  • Page 1 SPARROW HAWK MS: SEA 93 ASSEMBLY MANUAL “Graphics and specfications may change without notice”. Specifications Wingspan----------------------------------- 63 in ---------------------------------- 160cm. Wing area------------------------------------746.6 sq.in ------------------- 48.2 sq.dm. Approximate flying weight--------------7.9-8.8 lbs --------------------------3.6-4kg. Length--------------------------------------- 54.7 in -------------------------------- 139cm. Recommended engine size----------.0.61 -0.75 cu.in -------------------2-stroke. 1.00-1.10 cu.in ----------------- 4-stroke.
  • Page 2 Instruction Manual INTRODUCTION. Thank you for choosing the SPARROW HAWK ARTF by SEAGULL MODELS. The SPARROW HAWK was designed with the intermediate/advanced sport flyer in mind. It is a 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: Hinging The Ailerons

    www.seagullmodels.com NOTE: To avoid scratching your new aero- plane we suggest that you cover your workbench with an old towel. Keep a couple of jars or bowls handy to hold T-pins 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 Hinge...
  • Page 4: Hinging The Elevator

    SPARROW HAWK Instruction Manual 5) Turn the wing panel over and deflect the aileron in the opposite direction from the opposite side. Apply thin C/A glue to each hinge, making sure that the C/A penetrates into both the aileron and wing panel. 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...
  • Page 5: Rudder Control Horn

    www.seagullmodels.com Wing bottom. Elevator control horn Aileron control horn. RUDDER CONTROL HORN. Aileron. Rudder control horn: Using the same techniques used aileron ELEVATOR CONTROL HORN. control horn. See picture below. Install the elevator control horn using the same method as with the aileron control horns.
  • Page 6: Engine Mount Installation

    SPARROW HAWK Instruction Manual Rudder control horn. ENGINE MOUNT INSTALLATION. INSTALLING THE STOPPER ASSEMBLY. see pictures below.Make yourself the template of your engine on paper. 1) Using a modeling knife, carefully cut off the rear portion of one of the 3 nylon tubes leaving 1/2”...
  • Page 7: Fuel Tank Installation

    www.seagullmodels.com 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. Vent tube.
  • Page 8: Installing The Main Gear Wires

    SPARROW HAWK Instruction Manual Vent tube. Remove covering. Pen. Fuel fill tube. Fuel pick-up tube. Blow through one of the lines to ensure Support mounting the fuel lines have not become kinked in- block possition. side the fuel tank compartment. Air should flow through easily.
  • Page 9 www.seagullmodels.com Machine screw 3 x 15 mm. 3x15mm. 1.5mm. 1.5mm. 3x10mm. 1.5mm. Glue. Wheel collar. Machine screw M3 x 10mm. Wheel. Landing gear.
  • Page 10: Mounting The Engine

    SPARROW HAWK Instruction Manual 4.2 mm diameter. Glue. 5) Bolt the engine to the engine mount using the four machine screws. Double check that MOUNTING THE ENGINE. all the screws are tight before proceeding. 1) Install the pushrod housing through the 6) Attach the Z-Bend in the pushrod wire to predrilled hole in the firewall and into the servo the throttle arm on the carburetor.
  • Page 11 www.seagullmodels.com Trim and cut. Machine Screw M3x10mm. Machine Screw M3x10mm. Trim and cut. Because of the size of the cowl, it may be nec- essary to use a needle valve extension for the Electric Conversion (EP Power). high speed needle valve. Make this out of suf- (OPTION).
  • Page 12 SPARROW HAWK Instruction Manual Aluminum spacers. M5 x 100mm. Aluminum tube. M3 x 15mm. Aluminum tube. M5 nut. Electric motor. Battery hatch. M5 x 100mm. Electric motor. Cut. 135mm. 4 sets. Aluminum tube. Aluminum spacers.
  • Page 13: Spinner Installation

    www.seagullmodels.com Battery. M3 x 15mm. M3 x 15mm. Battery hatch. Battery hatch. SPINNER INSTALLATION. Pen. Install the spinner backplate, propeller and spinner cone. Trim and cut. 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.
  • Page 14: Installing The Aileron Servos

    SPARROW HAWK Instruction Manual INSTALLING THE SWITCH. Throttle servo arm. Elevator servo . Install the switch into the precut hole in the side of fuselage. Rudder servo . Elevator servo . INSTALLING THE AILERON SERVOS. Switch. Servos. Small weight. INSTALLING THE FUSELAGE SERVO. Elevator servo .
  • Page 15: Wing Assembly

    www.seagullmodels.com Wing rib. Wing. INSTALLING THE AILERON SERVOS. Small Weight. Small Weight. String. String. Attach the string to the servo lead and carefully thread it though the wing. AILERON PUSHROD HORN INSTALLATION Wing. 75mm. M2 clevis. M2 lock nut. Aileron. 110mm.
  • Page 16: Installing The Horizontal Stabilizer

    SPARROW HAWK Instruction Manual Center line. Epoxy. Hinge slot. Pen. Masking tape. Remove covering. When cutting through the covering to INSTALLING THE HORIZONTAL STABILIZER. remove it, cut with only enough pressure to only cut through the covering itself. Cut- ting into the balsa structure may weaken Remove the covering.
  • Page 17: Installing The Vertical Stabilizer

    www.seagullmodels.com Fill epoxy. Put the vertical stabilizer into the in the top of the horizontal fin. The bottom edge of the stabilizer should also be firmly pushed against the top of the horizontal stabilizer. Vertical Stabilizer. Horizontal 90º Stabilizer. INSTALLING THE VERTICAL STABILIZER. Masking tape.
  • Page 18 SPARROW HAWK Instruction Manual C/A glue. Hinge. Masking tape. ELEVATOR - RUDDER PUSHROD HORN INSTALLATION. Elevator control horn. Rudder control horn. 1) Elevator and rudder pushrods assembly follow pictures below. M2 clevis. M2 Lock nut. Attach to elevator - rudder control horn. Attach to servo arm in fuselage.
  • Page 19: Mounting The Tail Wheel

    www.seagullmodels.com Throttle. Rudder. Elevator. Elevator. Control horn. M2 lock nut. Throttle. Rudder. Metal clevis. Elevator Pushrod. Elevator. MOUNTING THE TAIL WHEEL. See picture below. Rudder pushrod. Elevator pushrod. 2) Install servos arm to servos. Notice the position of the servo arms on the servos. See picture below.
  • Page 20 SPARROW HAWK Instruction Manual 2) Wrap the receiver and battery pack in the protective foam rubber to protect them from vibration. M3x25 mm. 3) Route the antenna in the antenna tube inside the fuselage and secure it to the bot- Rudder.
  • Page 21: Control Throws

    www.seagullmodels.com To correct this, move the battery and receiver Silicon glue. forward or if this is not possible, stick weight onto the firewall or use a brass heavy hub spin- ner hub. When balanced correctly, the airplane should sit level or slightly nose down when you lift it up with your fingers.
  • Page 22: Flight Preparation

    SPARROW HAWK Instruction Manual 4) By moving the position of the adjust- PREFLIGHT CHECK. able control horn out from the control surface, you will decrease the amount of throw of that 1) Completely charge your transmitter control surface. Moving the adjustable con- and receiver batteries before your first day of trol horn toward the control surface will in- flying.

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