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I N S T R U C T I O... Wing Loading Wingspan Length

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WINGSPAN To w e r Hobbies® 39 in [990mm] guarantees this kit to be free from defects in both material and workmanship at the date of purchase. This warranty does not cover any component parts damaged by use or modification. In no case shall Tower Hobbies’ liability exceed the original cost of the purchased kit. Further, Tower Hobbies reserves the right to change or modify this warranty without notice. LENGTH 31.5 in [800mm] WING AREA 272 sq in [17.5 dm2] WEIGHT 28 – 31.6 oz [795 – 895 g] In that Tower Hobbies has no control over the final assembly or material used for final assembly, no liability shall be assumed nor accepted for any damage resulting from the use by the user of the final user-assembled product. By the act of using the user-assembled product, the user accepts all resulting liability. WING LOADING 14.8 – 16.7 oz/ft2 [45 – 51 g/dm2 ] RADIO 4-Channel MOTOR 1000kV outrunner, 30A ESC, 10 x 6 3-blade propeller READ THROUGH THIS MANUAL BEFORE STARTING CONSTRUCTION. IT CONTAINS IMPORTANT INSTRUCTIONS AND WARNINGS CONCERNING THE ASSEMBLY AND USE OF THIS MODEL. If the buyer is not prepared to accept the liability associated with the use of this product, the buyer is advised to return this kit immediately in new and unused condition to the place of purchase. To make a warranty claim send the defective part or item to Hobby Services at the address below: (OBBY3ERVICESs.!POLLO$R3UITEs#HAMPAIGN),s53! Include a letter stating your name, return shipping address, as much contact information as possible (daytime telephone number, fax number, e-mail address), a detailed description OF THE PROBLEM AND A PHOTOCOPY OF THE PURCHASE RECEIPT 5PON RECEIPT OF THE PACKAGE THE problem will be evaluated as quickly as possible. TOWER HOBBIES #HAMPAIGN )LLINOIS   EXT [email protected] Entire Contents © 2012 Tower Hobbies TOWA2004 ® WARRANTY ® INSTRUCTION M ANUAL TABLE OF CONTENTS –––––––––––––––––– INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . .2 REQUIRED FOR COMPLETION . . . . . . . . . . . . . . . . . . .2 LiPo Battery Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 KIT INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ORDERING REPLACEMENT PARTS . . . . . . . . . . . . . . . 3 CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 MAIN ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 FINAL ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Hook Up the Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Check the Control Throws . . . . . . . . . . . . . . . . . . . . . . . . 6 Check the C.G.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 MOTOR SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . 7 MOTOR/ESC OPERATION . . . . . . . . . . . . . . . . . . . . . . .8 FLYING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 REPAIRS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 INTRODUCTION –––––––––––––––––––––––– Thank you for purchasing the Tower Hobbies EP Hellcat. Not quite as much the “household” name as your Mustangs or Corsairs, the Hellcat is every bit as impactful when you see it in person— whether it’s the model or the real thing! But hey, what to say about this Tower Hobbies Hellcat? There’s not really much to it other than an economical, durable and simple model with considerable surface and scale detail and it flies great! Get it together, head to your flying site, get it into the air and have fun! For the latest technical updates or manual corrections to the Hellcat, visit the Tower Hobbies web site at www.towerhobbies. com. Open the “Airplanes” link, then select the EP Hellcat ARF. If there is new technical information or changes to this model a “tech notice” box will appear in the upper left corner of the page. AMA If you are not already a member of the AMA, please join! The AMA is the governing body of model aviation and membership provides liability insurance coverage, protects modelers’ rights and interests and is required to fly at most R/C sites. Academy of Model Aeronautics 5151 East Memorial Drive Muncie, IN 47302-9252 Tele. (800) 435-9262 Fax (765) 741-0057 Or via the Internet at: www.modelaircraft.org IMPORTANT: Two of the most important things you can do to preserve the radio controlled aircraft hobby are to avoid flying near full-scale aircraft and avoid flying near or over groups of people. SAFETY PRECAUTIONS –––––––––––––––– PROTECT YOUR MODEL, YOURSELF & OTHERS… FOLLOW THESE IMPORTANT SAFETY PRECAUTIONS 2 1. Your EP Hellcat should not be considered a toy, but rather a sophisticated, working model that functions very much like a full-size airplane. Because of its performance capabilities, the Hellcat, if not assembled and operated correctly, could possibly cause injury to yourself or spectators and damage to property. 2. You must assemble the Hellcat according to the instructions. Do not alter or modify the model, as doing so may result in an unsafe or unflyable model. In a few cases the instructions may differ slightly from the photos. In those instances the written instructions should be considered as correct. 3. You must use an R/C radio system that is in good condition. All components must be correctly installed so that the model operates correctly on the ground and in the air. You must check the operation of the model and all components before every flight. 4. If you are not an experienced pilot or have not flown this type of model before, we recommend that you get the assistance of an experienced pilot in your R/C club for your first flights. If you’re not a member of a club, your local hobby shop has information about clubs in your area whose membership includes experienced pilots. 5. While this kit has been flight tested to exceed normal use, if the plane will be used for extremely high stress flying, such as racing, or if a motor or battery larger than ones in the recommended range is used, the modeler is responsible for taking steps to reinforce the high stress points and/or substituting hardware more suitable for the increased stress. We, as the kit manufacturer, provide you with a top quality, thoroughly tested kit and instructions, but ultimately the quality and flyability of your finished model depends on how you build it; therefore, we cannot in any way guarantee the performance of your completed model, and no representations are expressed or implied as to the performance or safety of your completed model. REMEMBER: Take your time and follow the instructions to end up with a well-built model. REQUIRED FOR COMPLETION ––––––––– No extraordinary tools or building supplies are required to finish the EP Hellcat—just a Phillips screwdriver. The Hellcat is already equipped with servos, ESC and motor, so the only other components you have to supply are as follows: ■ Minimum 4-channel transmitter and receiver ■ 3S 11.1V 1800mAh ̶ 2200mAh LiPo battery: Electrifly 2200mAh 30C (GPMP0681) FlightPower 2100mAh 25C (FPWP4196) FlightPower 2200mAh 30C (FPWP6198) Flyzone 2100mAh 20C (FLZA6173) (See page 6 for more about batteries.) ■ LiPo battery charger NOTE: If using a battery with a Deans® Ultra Plug® connector, a Deans Ultra Male-to-SuperTigre ESC adapter (SUPM0040) will also be required (or the connector on the ESC may simply be replaced with a Deans Ultra Male connector). LiPo Battery Charger Most modelers may already have a suitable LiPo charger, but for those that do not, the Duratrax Onyx 235 AC/DC Advance Peak Charger (DTXP4235) is one of the suitable chargers recommended. The Onyx charger is perfect for 3S batteries used with the Hellcat and may be powered either by an external DC power source (such as a 12 battery), or a 110V AC outlet. The Onyx also has an adjustable charge rate to charge your batteries in as little as a half-hour or less (depending on the condition of your batteries and the manufacturer’s specified charge rate). The Onyx can also charge larger batteries and batteries other than LiPos, so it is a versatile charger you can grow into. The 235 also has an LCD digital display screen, so you can see how much capacity it took to recharge the battery (required for monitoring the condition of your batteries and calculating how long you can fly). NOTE: For use with the Onyx 235, LiPo batteries that come with a SuperTigre connector (such as the Flyzone batteries recommended) require a banana plugs-to-SuperTigre charge lead (SUPM0070). And batteries that come with a Deans Ultra connector require a Charge Lead with banana plugs/Deans Ultra Male charge lead (GPMM3148). To locate a hobby dealer, visit the Hobbico web site at www. hobbico.com. Choose “Where to Buy” at the bottom of the menu on the left side of the page. Follow the instructions provided on the page to locate a U.S., Canadian or International dealer. Parts may be ordered directly from Hobby Services by calling (217) 398-0007, or via facsimile at (217) 398-7721, but full retail prices and shipping and handling charges will apply. Illinois and Nevada residents will also be charged sales tax. If ordering via fax, include a Visa® or MasterCard® number and expiration date for payment. Mail parts orders and payments by personal check to: Be certain to specify the order number exactly as listed in the Replacement Parts List. Payment by credit card or personal check only; no C.O.D. If additional assistance is required for any reason contact Product Support by e-mail at [email protected], or by telephone at (217) 398-8970. REPLACEMENT PARTS LIST KIT INSPECTION ––––––––––––––––––––––– Order No. Before assembly, take an inventory of this kit to make sure it is complete, and inspect the parts to make sure they are of acceptable quality. If any parts are missing or are not of acceptable quality, or if you need assistance with assembly, contact Product Support. When reporting defective or missing parts, use the part names exactly as they are written in the Kit Contents list. Hobbico Product Support 3002 N Apollo Drive Suite 1 Champaign, IL 61822 Hobby Services 3002 N Apollo Drive, Suite 1 Champaign IL 61822 T O WA 6 0 9 5 T O WA 6 0 9 6 T O WA 6 0 9 7 T O WA 6 0 9 8 T O WA 6 0 9 9 T O WA 6 1 0 0 T O WA 6 1 0 1 T O WA 6 1 0 2 T O WA 6 1 0 3 GPMQ1888 T O WA 6 0 9 2 TOWM5500 SUPM1030 TOWG2000 Ph: (217) 398-8970 ext. 5 Fax: (217) 398-7721 E-mail: [email protected] ORDERING REPLACEMENT PARTS –––– Description Wing Fuselage Horizontal Stabilizer Vertical Stabilizer Cowl Canopy/Hatch Wing Bolt ( 2 pcs. ) Landing Gear 10x6 3 Blade Propeller Tail Gear Spinner Hub Servo 30A Brushless ESC 1000kV Outrunner Motor Replacement parts for the Tower Hobbies EP Hellcat are available using the order numbers in the Replacement Parts List that follows. The fastest, most economical service can be provided by your hobby dealer or mail-order company. ––––––––––––––––––––––––––––––––––– CONTENTS –––––––––––––––––––––––––––––––––––– 1. Fuselage, Cowl, Canopy Hatch 1 3 2. Wing 3. Vertical Stabilizer 4. Horizontal Stabilizer 2 5. Hardware Bag 6. Main Landing Gear 4 8 7 6 5 7. Propeller Hub 8. Propeller 3 MAIN ASSEMBLY –––––––––––––––––––––– NOTE: If you haven’t yet figured it out yet, the canopy hatch is held to the fuselage with magnets at the rear and a tab at the front. To remove the hatch, simply lift up on the aft end of the hatch to disengage the magnets. ❏ 3. Connect the pushrods to the horns as shown. ❏ 4. Insert one, then the other main landing gear wires into the wing – the wire struts are positioned inboard of the wheels. ❏ 1. Fit the horizontal and vertical stabilizer (stab and fin) together, then fit them to the fuselage while keying the tail gear into the rudder. ❏ 5. Guide the aileron servo wire through the hole in the bot- 4 ❏ 2. Fasten the stab and fin assembly to the fuselage with the M3 x 40 screw. tom of the wing. ❏ 6. Bolt the wing to the fuselage with the M6 x 50mm nylon wing bolt—don’t over tighten the bolt—just enough to securely “snug” the wing up to the fuselage. ❏ 2. Use the included double-sided foam mounting strip to mount the receiver in the fuselage out of the way where it will not interfere with installation and removal of the battery. ❏ 3. Without the propeller yet mounted, temporarily place the battery in the fuselage, turn on your transmitter and connect the battery to the ESC to power the system up so you can check the controls. ❏ 7. Apply the rougher, “hook” side of the included hook-andloop material to the fuselage floor and the softer, “loop” side to the battery. FINAL ASSEMBLY –––––––––––––––––––––– Hook Up the Controls ❏ 4. Make sure all the controls respond in the correct direction ❏ 1. Connect the servo and ESC wires to the appropriate channels in your receiver. according to your inputs and that all the control surfaces are centered—if necessary, use the servo reversing in your transmitter and adjust the pushrods in the screw-lock connectors to center the controls. Whether or not you adjusted any pushrods, doublecheck that the screw in all the screw-lock connectors are tight and secure. 5 Check the Control Throws Check the C.G. The C.G. (center of gravity) has a great effect on the way the Hellcat flies. If the C.G. is not correct the Hellcat could be too stable (reacting too slowly to control inputs) or too instable (reacting too quickly to control inputs) possibly causing a crash. LESS control throw MORE control throw MORE control throw LESS control throw Raise the aft end of the fuselage so the wings and stab are level (or nearly level). Measure the control surface throws and if necessary, use the programming in your transmitter or change the location of the pushrods in the servo arms or in the horns on the control surfaces to get the recommended throws. Note that the throws are measured at the widest part (front-to-back) of each surface: The Hellcat is designed to fly with either an 1800mAh or 2100mAh 3S (11.7V) battery, but it could use a little help in the C.G. department and will benefit from the slightly heavier 2100mAh battery. The Hellcat should balance pretty much on the recommended C.G. location with a 3S 2100mAh battery positioned as far forward as it will go. It will still balance within the recommended range with an 1800mAh battery all the way forward, but to get it balanced directly on the recommended point approximately .75 oz. [21g] may be required in the nose. After checking the C.G., should you decide to stick an ounce or so of ballast in the nose it is acceptable to do so directly to the inside of the cowl. Eventually though the adhesive on the double-sided foam tape on the back of most lead strips will let go, so once you’ve finalized the amount of weight, attach it more securely with a few drops of CA. If your radio does not have dual rates, we recommend setting the throws halfway between the high and low rates. THESE ARE THE RECOMMENDED CONTROL SURFACE THROWS: 6 ELEVATOR UP DOWN UP 7/16" [11mm] 7/16" [11mm] 1/4" [6 mm] 13° 13° 7° RUDDER LOW RATE RIGHT LEFT RIGHT LEFT 3/4" [19mm] 3/4" [19mm] 1/2" [13mm] 1/2" [13mm] 19° 13° 19° 13° AILERONS HIGH RATE UP DOWN UP DOWN 1/2" [13mm] 1/2" [13mm] 3/8" [10mm] 3/8" [10mm] 17° 17° 12° 12° DOWN 1/4" [6mm] 7° ❏ 1. With the battery disconnected, mount the propeller to the motor with the included collet adapter hub—for now the propeller hub needs to be only finger tight (in case the cowl requires removal for adding ballast to the nose later). ❏ 4. Lift the model upside-down with your fingertips on the ❏ 2. If you haven’t done so already, install the battery—as previously suggested, start with the battery positioned as far forward as it will go. Recommended Starting C.G. Forward Limit: 2-1/4" [57mm] 2-5/8" [67mm] Back From Wing LE at Fuselage Sides Aft Limit: 3" [76 mm] 2-5/8" [67mm] 2-5/8" [67mm] recommended C.G. location you marked. ❏ 5. If necessary, shift the battery forward or aft or add stick-on lead ballast where required to get the model to balance. ❏ 6. Once the C.G. has been set, tighten the propeller hub using a small screwdriver as a torque bar. MOTOR SAFETY PRECAUTIONS ––––––– Failure to follow these safety precautions may result in severe injury to yourself and others. ■ Seek the assistance of an experienced pilot if new to electric motors. ■ Wear safety glasses whenever in the proximity of a spinning propeller. ■ Do not operate the motor in an area of loose gravel or sand; the propeller may throw such material in your face or eyes. ❏ 3. The C.G. is to be marked on the top of the wing so that you can see where to position your fingers for lifting the model for balancing, or better yet, so that you can actually feel the marks. You could use a fine-point, felt-tip pen, or something inconspicuous or removable such as pins inserted directly into the foam that can be removed later. Whatever method you use, mark the C.G. on the top of the wing where indicated. ■ Keep spectators as well as your own face and body out of the plane of rotation of the propeller. ■ Keep all loose clothing, long hair or any other loose objects such as pencils or screwdrivers that may fall out pockets away from the propeller. NOTE: The Hellcat may be flown with the C.G. up to 3/8” [10mm] ahead or 3/8” [10mm] behind the recommended balance point. With the Hellcat balanced at the front of the range it will be more stable, but less maneuverable and heavier due to the ballast that may be required. With the Hellcat balanced at the rear of the range the Hellcat will be more maneuverable, but less stable and quicker to react to your control inputs. 7 MOTOR/ESC OPERATION ––––––––––––– Turning on the transmitter and operating the motor are intuitive for most pilots who already have experience with electric motors, but for those who may have little or no experience with electric motors here are operating instructions for the ESC and motor included with your Hellcat: When ready to run up the motor, first turn on the transmitter and make sure the throttle stick is all the way down. Then connect the battery to the ESC. The ESC will send a single, short pulse to the motor, causing it to beep once (“beep”). To operate the motor advance the throttle stick, hold it there momentarily, and listen for another single beep (“beep”). Then return the throttle stick all the way down.The motor will sound two more quick beeps (“beep beep”). The next time the throttle stick is advanced, the propeller will turn. You are now ready to fly. If the transmitter is not turned on before the battery and ESC are connected (so the receiver is not receiving a signal), the motor will beep rapidly (“beep beep beep beep…”) until either the battery is disconnected or the transmitter is turned on. Then, the ESC will resume its normal arming sequence. FOR EXAMPLE: If using the recommended 2100mAh battery, your target capacity available is 1680mAh (2100mAh x .8). If you fly for five minutes and it takes 1200mAh to recharge your battery, you still had 480mAh to go, so adjust your timer to increase your flight time accordingly until you reach your 1680mAh target. (You could also divide 1200mAh by five minutes to figure a current consumption rate of 240mAh/minute. Divide 1680mAh by 240mAh/minute to conclude that you can fly for 7 minutes.) If, when the battery is connected to the ESC, the throttle stick is not all the way down the motor will beep steadily (“beep,” “beep,” “beep…”) until either the battery is disconnected or the throttle stick is returned to the off position. This time the ESC will resume its normal arming sequence. It’s also a great idea to use a LiPo battery checker (HCAP0275) to check the battery before each flight (to make sure you haven’t inadvertently grabbed a discharged battery) and to check the battery after flight to make sure you haven’t over discharged your battery by flying too long. A safe, conservative, minimum voltage is 3.65V – 3.7V per cell right after a flight. FLYING ––––––––––––––––––––––––––––––––– REPAIRS ––––––––––––––––––––––––––––––– The Hellcat doesn’t exhibit any particular characteristics that you need to be made aware of ahead of time, other than it is a slightly “draggy” airframe that will benefit from a few clicks of throttle while dragging it in for a landing—just let the Hellcat settle and it will touch down smoothly. Then, cut the throttle. Parts damaged beyond repair can be purchased separately. The full replacement part list is printed in the front of the manual on page 3. Often though, parts can be repaired and you can get your Hellcat back into the air with a little glue and ingenuity. Flying “normally,” the Hellcat consumes approximately 250mAh/ minute which should provide approximately 6-1/2 to 7 minutes of motor run time on a 2100mAh battery—of course, the run time you can expect depends on many factors such as the condition of your batteries, your flying style and even the wind conditions (flying on windy days seems to use more power than flying on calm days). The Hellcat is made from injection-molded EPO (expanded polyolefin) foam which can be glued with just about anything. Most people use regular CA. With CA no clamping is required, but some prefer softer, more flexible adhesives such as white glue or canopy glue. These kinds of glues will require clamps or tape to hold the parts together while the glue dries. AMA Number Phone Number City, State, Zip Address Name This model belongs to: To find out for yourself how long you can fly, set your timer to a conservative 5 minutes. Fly until the timer sounds, then land. Use a charger with a digital display to find out how much capacity it took to recharge the battery (indicating how much capacity was used). To avoid over discharging your LiPos, likely causing reduced performance, the target is to use 80% of your battery’s capacity, so multiply your battery’s capacity by .8 to find out how 8 much you have available. Compare the capacity used to 80% of your battery’s capacity and adjust your flight time accordingly. One final note about flying your model. Have a goal or flight plan in mind for every flight. This can be learning a new maneuver(s), improving a maneuver(s) you already know, or learning how the model behaves in certain conditions (such as on high or low rates). This is not necessarily to improve your skills (though it is never a bad idea!), but more importantly so you do not surprise yourself by impulsively attempting a maneuver and suddenly finding that you’ve run out of time, altitude or airspeed. Every maneuver should be deliberate, not impulsive. For example, if you’re going to do a loop, check your altitude, mind the wind direction (anticipating rudder corrections that will be required to maintain heading), remember to throttle back at the top, and make certain you are on the desired rates (high/low rates). A flight plan greatly reduces the chances of crashing your model just because of poor planning and impulsive moves. Remember to think. Have a ball! But always stay in control and fly in a safe manner. GOOD LUCK AND GREAT FLYING!