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Sportsman Aviation POLECAT RACER .40 Building Instructions

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Building Instructions

Thank you for choosing the Pole Cat. Designed after one of the famous pylon racing aircraft, this is one
of the best sport flying and aerobatic fun machines around. The Polecat embodies both speed and
manoeuvrability. This is made possible by its lightweight material and high-quality construction. The
balsa fuselage and fibreglass cowling made for ultra realistic look. This plane is fast and agile. The
Polecat builds easily, quickly, and precisely due to its state of the art CAD design, LASER cut
technology, and outstanding hardware included. Great care has been taken in both the design and
manufacturing of the Pitts, to allow for the strongest and lightest construction possible. Only the highest
quality materials from the covering, paint, wood and hardware have been used in the construction of this
model. The Polecat ARF has been individually hand built, covered and painted by trained and
experienced Craftsmen. Using CAD design, laser cut technology and jig-built assures accuracy in all
stages of production. We hope you enjoy building and flying your own Polecat Racer.
Trust us when we say, with our design you can "feel" the difference!
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Summary of Contents for Sportsman Aviation POLECAT RACER .40

  • Page 1: Building Instructions

    Building Instructions Thank you for choosing the Pole Cat. Designed after one of the famous pylon racing aircraft, this is one of the best sport flying and aerobatic fun machines around. The Polecat embodies both speed and manoeuvrability. This is made possible by its lightweight material and high-quality construction. The balsa fuselage and fibreglass cowling made for ultra realistic look.

  • Page 2: Table Of Contents

    The Real Polecat Formula 1 Racer: First place winner and world speed record holder at the 1980 Cleveland National Air Show Formula One race. The "Polecat" is a Formula One racing airplane built in 1970 by Vince DeLuca of Mira Leste, California. It is a copy of an earlier highly successful racing aircraft called "Shoestring", which initially flew in the 1949 Cleveland National Air Races.

  • Page 3: Warranty

    SEALING HINGE JOINS............................25 PREFLIGHT PREPARATION ............................25 CONTROL THROWS ..............................26 PREFLIGHT CHECKS ...............................27 FLIGHT TESTING ..............................27 WARNING!! An R/C aircraft is not a toy! If misused, it can cause serious bodily harm and property damage. Fly only in open areas, and MAAA approved flying sites.

  • Page 4: Cautions

    CAUTIONS • This product is not suitable for children under 14 years of age, adult supervision of children is highly recommended. • This kit contains a number of small parts which are fragile and may act as choking hazards. • Please store and assemble this model well out of the reach of small children.
  • Page 5 The covering material used on your airplane is real iron-on, heat-shrink covering material. It is possible with heat and humidity changes that the covering material on your airplane may wrinkle or sag. This trait is inherent in all types of heat-shrink material. To remove any wrinkles that might be visible you will need to use a heat-sealing covering iron.

  • Page 6: Safety Procedures Before Flight

    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. Check to ensure that all of the control surfaces are moving the proper amount in both low and high rate settings. Motor : The motor should run smoothly at all power settings with smooth transition from low to high RPM.
  • Page 7 may be determined by looking at the small orange label attached to the module in the back of the transmitter. It will show a number, this the frequency of your radio in Mhz. make sure you do not operate the model when another model of any type, or R/C car is on this frequency.

  • Page 8: Getting Ready To Fly

    Receiver instructions: The receiver antenna is best fully extended and routed away from other wires where practical. Run the antenna out of the fuselage and up to the top of the fin for best results. Use some tape to hold in place. DO NOT shorten, cut or roll up the antenna as this will reduce the range of control.

  • Page 9: First Flights

    Don’t fly within a 6 kilometre radius of any airport or where full sized aircraft are flying. FIRST FLIGHTS It will be VERY helpful if you are able to obtain help from an experienced model pilot during your first flights. It is a very good idea to find a model club in your area or at least someone that can fly RC planes.
  • Page 10 After you have test-flown and made the initial trim changes to the airplane, use this trimming chart to begin trimming your airplane. Following this chart will result in the ability to diagnose trim problems and correct those problems using the simple adjustments shown below.

  • Page 11: Kit Contents

    KIT CONTENTS: Features • Laser-cut balsa and ply construction • Built-up fuselage • Two piece built-up bolt-on wings • Fibre glass cowl and wheel pants • Landing gear • Pre-slotted C/A hinges. • Hardware pack—bolts, nuts, lock nuts, C/A hinges •...

  • Page 12: Items Needed To Complete Model

    ITEMS NEEDED TO COMPLETE MODEL Motor Magnum 46 or 52 four stroke. Recommended Propeller (XOAR 12x4) Recommended TY 63mm white spinner Radio System 2 x aileron servos 1 x rudder servo 1 x elevator servo Standard size servos recommended Receiver 4-7 channel Recommended Optional TY Hinge Tape...

  • Page 13: Hinging Ailerons

    HINGING AILERONS Place a pin though the centre of all the hinges. Slide the hinges into the ailerons up to the pin half way. If the hinges are too tight, slightly widen the slot with a hobby knife. Slide the aileron on to the wing. Remove the pin and butt the aileron up tight.

  • Page 14: Aileron Push Rods

    AILERON PUSH RODS Fit control horn in line with servo arm. Fit push rod Z bend end to the servo arm. Thread the clevis on to the other end. Repeat process for other side. WING JOINNING ASSEMBLY Cut away the excess covering that overlaps onto the root rib of each wing panel.

  • Page 15: Tail Assembly

    TAIL ASSEMBLY Stablizer assembly Slide stabilizer into the fuselage. Measure from the side of fuselage to the tip of stabilizer on both sides and adjust the stabilizer until measurements are equal. Measure from wing tip to stabilizer on both sides and adjust until equal. Place tape on each side of the stabilizer top and bottom were the fuselage joins the stabilizer.
  • Page 16 Elevator assembly Locate the hinges for the elevator. Place a T pin through the centre of them. Slide the hinges in to the elevator halves. If they are tight to get into the slots slide a hobby knife in to slightly enlarge the hole. Now insert the elevator into the stabilizer and glue hinges in place with thin C/A.
  • Page 17 Rudder assembly Locate the hinges for the rudder. Place a T pin through them as you did for the elevator. Slide the hinges into the rudder then slide the rudder into the fin. Remove T pins from hinges. Check to see if you have full rudder deflection with a little as possible hinge gap.

  • Page 18: Undercarriage

    UNDERCARRIAGE Installing the landing gear, axles, wheels and wheel pants and then attach to the bottom of the fuselage. The axle, axle bolts, washers and nuts are attached as shown. Slide the bolt though the undercarriage leg. Now place 2 nuts on to the bolt and tighten. Now slide wheel on to bolt.

  • Page 19: Elevator And Rudder Servos

    ELEVATOR AND RUDDER SERVOS Cut servo arm in to a half arm. Fit servo arm on to servo at 90 degrees. Drill a pilot hole for each servo screw. Secure servo in to position. Repeat process for the other servo. Refer to photo as a reference for location.
  • Page 20 ELEVATOR AND RUDDER HORN ATTACHMENT Locate control horn. Hold in position on elevator in line with the push rod and on the edge of the hinge line. Drill two holes with a pin vice drill. Place the bolts through and fit backing plate and tighten.

  • Page 21: Motor Assembly

    MOTOR ASSEMBLY Push the engine cowl on to the fuselage into position. Measure from the fire wall to the front of the cowl. Hold the engine mount up to the magnum motor. Measure from the back of the engine mount to the prop driver on the motor. Slide the motor back and forward until you get the same measurement + 5mm clearance.

  • Page 22: Fuel Tank

    FUEL TANK Push the three aluminum tubes into the rubber bung. Push the backing plate on. Push the front plate on followed by the centre bolt. Get the centre bolt started but do not tighten. Bend the top pipe up to the top of the tank.

  • Page 23: Throttle Servo

    THROTTLE SERVO Fit throttle servo. Drill a hole in the firewall in line with the throttle arm on the carburetor. Push tube through hole cut to length and glue. Push the throttle wire through the tube. Fit wire on to the rode stopper on the servo and secure.

  • Page 24: Canopy

    FITTING PROP ADAPTOR AND SPINNER Fit the prop and spinner. 1. Spinner back plate. 2. Xoar prop. 3. Washer. 4. Nut or weighted spinner nut if nose weight needed. 5. Spinner cone. Tighten the prop nut tight before putting the spinner cone on. If using a wood prop check and retighten after the first flight.

  • Page 25: Radio Gear Location

    RADIO GEAR LOCATION Fit switch harness in to position as per photo. Mount battery pack just behind tank. Mount your receiver in place with Velcro. Refer to photo as a guide for placement SEALING HINGE JOINS It is recommended to use TY hinge tape to seal all the hinge joints, this will reduce the chance of flutter and will aid in trimming the plane.

  • Page 26: Preflight Preparation

    PREFLIGHT PREPARATION Center of Gravity The recommended CG is 60mm to 65mm from the leading edge of the wing measured along the outer wing rib at the wing tip. Do not skip this step! Balance the Polecat along the CG line with your fingers. Make sure the battery is installed and plane is ready to fly. Start at the forward end of the CG range until you are comfortable with the flight characteristics of the aircraft.

  • Page 27: Preflight Checks

    PREFLIGHT CHECKS Center of Gravity : Check CG is set properly. Motor: The motor should run smoothly at all power settings with smooth transition from low to high RPM. Do not fly with an unreliable motor. Completely read motor instructions before flying. Flight Controls: Ensure all flight controls are free from binding and are centered.
  • Page 28 Sportsman Aviation : These new laser cut balsa / ply ARF models are beautifully covered in quality film – Look & Fly Great !! Yak 54 49” EP Extra 54 49” EP Yak 54 84” 50cc Gas Wing span—49” 1245mm Wing span—49”...

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