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E-FLITE Ultimate 20-300 10 ARF Assembly Manual

Summary of Ultimate 20-300 10 ARF

  • Page 1

    Specifications wingspan: 38 in (960mm) length: 41 in (1045mm) wing area: 473.5 sq in (30.5 sq dm) weight w/o battery: 34–36 oz (965–1020 g) weight w/battery: 39–41 oz (1105–1160 g) ultimate 20-300 10 arf assembly manual.

  • Page 2

    2 e-flite ultimate 20-300 assembly manual introduction e-flite's ultimate 20-300 10 arf is a sport replica of the rare two-place aerobatic aircraft. The large wing area and light wing loading of its biplane design provide smooth flight characteristics and precise response. The ultimate is designed a...

  • Page 3

    3 e-flite ultimate 20-300 assembly manual contents of kit/parts layout replacement parts efl2751 fuselage efl2752 top wing w/ailerons, left and right efl2753 bottom wing w/ailerons, left and right efl2754 tail set efl2755 outer wing struts efl2756 cowl efl2757 canopy efl2758 spinner efl2759 landing ...

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    4 e-flite ultimate 20-300 assembly manual required tools and adhesives tools & equipment felt-tipped pen ball driver: 3/32-inch low-tack masking tape mixing sticks paper towels pin drill rubbing alcohol mixing cups drill bits: 1/16-inch (1.5mm) hobby knife (#11 blade) phillips screwdriver: #0, #1 st...

  • Page 5

    5 e-flite ultimate 20-300 assembly manual warranty information warranty period horizon hobby, inc., (horizon) warranties that the products purchased (the “product”) will be free from defects in materials and workmanship at the date of purchase by the purchaser. Limited warranty (a) this warranty is ...

  • Page 6

    6 e-flite ultimate 20-300 assembly manual questions, assistance, and repairs your local hobby store and/or place of purchase cannot provide warranty support or repair. Once assembly, setup or use of the product has been started, you must contact horizon directly. This will enable horizon to better a...

  • Page 7

    7 e-flite ultimate 20-300 assembly manual safety, precautions, and warnings as the user of this product, you are solely responsible for operating it in a manner that does not endanger yourself and others or result in damage to the product or the property of others. Carefully follow the directions an...

  • Page 8

    8 e-flite ultimate 20-300 assembly manual 3. Position the hinges in the pre-cut slots in the aileron. Slide the hinges into the aileron up to the mark made in the previous step. 4. Slide the aileron in position with the hinges inserted in the slots of the wing. Check that the end of the aileron is a...

  • Page 9

    9 e-flite ultimate 20-300 assembly manual note: if the control surface is tight against the main surface, it will limit the amount of control throw the surface can achieve. 7. Apply thin ca to the top and bottom of each hinge. Make sure to saturate the hinges, applying the ca to the slot in the hing...

  • Page 10

    10 e-flite ultimate 20-300 assembly manual aileron servo installation required parts top wing bottom wing control horn (2) interconnect horn (4) aileron servo (2) silicone clevis retainer (2) nylon connector backplate (2) machine screw, 2mm x 4mm (2) 6-inch (152mm) servo extension (2) lightweight sc...

  • Page 11

    11 e-flite ultimate 20-300 assembly manual 2. Use a hobby knife to trim the covering from the slot in the aileron. Leave the covering on the top for aesthetic purposes. Use medium ca to glue the interconnect horn in the aileron. Make sure to center the horn in the aileron before the ca fully cures. ...

  • Page 12

    12 e-flite ultimate 20-300 assembly manual 6. Use the string to pull the extension through the hole at the center of the bottom wing. Hint: use low-tack tape to keep the ailerons from moving during the servo installation. 7. Position the servo in the opening. Use a pin drill and 1/16-inch (1.5mm) dr...

  • Page 13

    13 e-flite ultimate 20-300 assembly manual 9. Repeat steps 1 through 8 for remaining control horns and servo. 10. Use a pin drill and 1/16-inch (1.5mm) drill bit to enlarge the hole that is 1/2-inch (13mm) from the center of the servo horn. 11. Use a hobby knife to remove the webbing from the unders...

  • Page 14

    14 e-flite ultimate 20-300 assembly manual 13. Slide the lightweight screw lock connector into the hole drilled back in step 10. 14. Use the connector backplate to secure the connector. 15. Slide a clevis retainer onto the clevis of the 2.5-inch (62mm) servo linkage. 16. Attach the clevis to the out...

  • Page 15

    15 e-flite ultimate 20-300 assembly manual note: the servo horn should be installed parallel to the hinge line to produce the correct linkage geometry. Important: the suggested digital servos will require programming before setting the control throws. This will be covered in the manual before the th...

  • Page 16

    16 e-flite ultimate 20-300 assembly manual 2. Slide the stabilizer into the slot at the rear of the fuselage. Slide the stabilizer forward, then align it side- to-side with the fuselage. 3. Measure from each wing tip to each stabilizer tip. The distances on the right must match those on the left. Re...

  • Page 17

    17 e-flite ultimate 20-300 assembly manual 5. Once aligned, use a felt-tipped pen to trace the outline of the fuselage onto the top and bottom of the stabilizer. 6. Remove the stabilizer from the fuselage. Use a hobby knife with a new #11 blade to trim the covering slightly inside the lines drawn on...

  • Page 18

    18 e-flite ultimate 20-300 assembly manual 7. Slide the elevator joiner wire into the slot for the stabilizer before gluing the stabilizer into position. Hint: to avoid leaving the marks of the lines from the pen where the location marks are made on the stabilizer, use alcohol and a paper towel to r...

  • Page 19

    19 e-flite ultimate 20-300 assembly manual hinging the rudder and stabilizer required parts elevator (left and right) rudder tail wheel assembly fuselage ca hinge (10) control horn control horn backplate required tools and adhesives medium ca felt-tipped pen hobby knife thin ca 6-minute epoxy mixing...

  • Page 20

    20 e-flite ultimate 20-300 assembly manual 4. Slide the hinges in the slots in the stabilizer. 5. Repeat steps 1 through 4 to position the remaining elevator half. 6. Position the elevators so the gap between the stabilizer tip and the balance tabs of the elevators are equal. Check the operation of ...

  • Page 21

    21 e-flite ultimate 20-300 assembly manual 9. Use medium ca to glue the tail wheel assembly into the slot at the bottom of the rudder. 10. Mark four ca hinges and install them in the slots in the rudder as shown. 11. Attach the rudder to the fin using the hinges. Remember to use a hobby knife to set...

  • Page 22

    22 e-flite ultimate 20-300 assembly manual rudder and elevator servo installation required parts fuselage servo (2) control horn silicone clevis retainer (2) control horn backplate nylon connector backplate (2) machine screw, 2mm x 4mm (2) 9-inch (228mm) servo extension 12-inch (305mm) servo extensi...

  • Page 23

    23 e-flite ultimate 20-300 assembly manual hint: use a piece of string or some tape to secure the two plugs together so that they cannot pull apart inside the fuselage. 4. Position the servo in the opening. Use a pin drill and 1/16-inch (1.5mm) drill bit to drill the holes for the servo mounting scr...

  • Page 24

    24 e-flite ultimate 20-300 assembly manual 7. Secure the link using a 2mmx 4mm machine screw and a #1 phillips screwdriver. 8. Repeat steps 2 through 7 to install the rudder servo and linkage. The only difference is you will use a 12-inch (305mm) extension on the rudder servo. Receiver and landing g...

  • Page 25

    25 e-flite ultimate 20-300 assembly manual 2. Use four 4-40 x 1/2-inch socket head screws and four #4 washers to attach the main landing gear to the fuselage. Use a 3/32-inch ball driver to tighten the screws. Note: use threadlock on the screws to prevent them from vibrating loose. Motor and cowling...

  • Page 26

    26 e-flite ultimate 20-300 assembly manual 2. Attach the motor to the firewall using four 4-40 x 3/8-inch socket head screws and four #4 washers. Tighten the screws using a 3/32-inch ball driver. Note: use threadlock on the screws to prevent them from vibrating loose. 3. Position the speed control i...

  • Page 27

    27 e-flite ultimate 20-300 assembly manual 5. Secure a small square of hook and loop material inside the fuselage. This is done to keep the strap that secures the battery from falling into the fuselage. 6. Secure the battery inside the fuselage using the hook and loop strap. Use a piece or two of ho...

  • Page 28

    28 e-flite ultimate 20-300 assembly manual important information about your propeller it is also very important to check to be sure the propeller is balanced before installing onto the shaft. An unbalanced propeller may strip the gears or cause poor flight characteristics. Note: if it is necessary t...

  • Page 29

    29 e-flite ultimate 20-300 assembly manual upper wing and canopy installation required parts fuselage top wing bottom wing canopy 2mm nut (2) 2mm washer (4) interplane strut (2) machine screw, 2mm x 20mm (8) linkage, 7.5-inch (190mm) (2) machine screw, 2mm x 6mm (2) pushrod connector backplate (2) l...

  • Page 30

    30 e-flite ultimate 20-300 assembly manual 3. Use a pin drill and 1/16-inch (1.5mm) drill bit to poke the covering to access the screw holes for the interplane struts. 4. Use the following image to orient the interplane struts for installation. 5. Use four 2mm x 20mm machine screws and a #1 phillips...

  • Page 31

    31 e-flite ultimate 20-300 assembly manual 6. With the bottom wing installed, attach the top wing to the cabane struts using four 2mm washers, two 2mm nuts and two 2mm x 10mm machine screws. Use a small adjustable wrench and a #1 phillips screwdriver to secure the screws. 7. Use four 2mm x 20mm mach...

  • Page 32

    32 e-flite ultimate 20-300 assembly manual 10. Position both ailerons in their neutral positions. Use a 2mm x 6mm machine screw and #1 phillips screwdriver to secure the linkage. 11. Repeat steps 8 through 10 to connect the remaining top and bottom ailerons. Control throws 1. Turn on the transmitter...

  • Page 33

    33 e-flite ultimate 20-300 assembly manual control horn length this length is also very critical. The closer the pushrod attachment is to the surface the less mechanical advantage you have on the surface. In the case of the ultimate these lengths have been set for you. In general, practice never set...

  • Page 34

    34 e-flite ultimate 20-300 assembly manual programmer servo throws ailerons up 11/16-inch (16mm) down 9/16-inch (13mm) elevator up 2-inch (50mm) down 2-inch (50mm) rudder up 2 3 / 4 -inch (70mm) down 2 3 / 4 -inch (70mm) final control throws ailerons high rate low rate up 7/8-inch (22mm) up 5/8-inch...

  • Page 35

    35 e-flite ultimate 20-300 assembly manual center of gravity an important part of preparing the aircraft for flight is properly balancing the model. Caution: do not inadvertently skip this step! The recommended center of gravity (cg) location for the ultimate 20-300 is 3 1 / 8 –3 1 / 2- inch (80–90m...

  • Page 36

    36 e-flite ultimate 20-300 assembly manual range test your radio 1. Before each flying session, be sure to range check your radio. This is accomplished by turning on your transmitter with the antenna collapsed. Turn on the receiver in your airplane. With your airplane on the ground and the engine ru...

  • Page 37

    37 e-flite ultimate 20-300 assembly manual 2008 official ama national model aircraft safety code general 1) i will not fly my model aircraft in sanctioned events, air shows or model flying demonstrations until it has been proven to be airworthy by having been previously, successfully flight tested. ...

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    38 e-flite ultimate 20-300 assembly manual building and flying notes.

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    39 e-flite ultimate 20-300 assembly manual building and flying notes.

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    13465 © 2008 horizon hobby, inc. 4105 fieldstone road champaign, illinois 61822 (877) 504-0233 horizonhobby.Com e-fliterc.Com.