WATT AGE PT-19 CORNELL EP ARF Instructions For Final Assembly

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WATT AGE PT-19 CORNELL EP ARF Instructions For Final Assembly Manual pdf 28 page image

28STEP 5: INSTALLING THE FLIGHT BATTERYq Slide your flight battery through the front cockpit cutout and onto thebattery tray. Push the flight battery as far forward as possible, thensecure it into place, using the Velcro Æ strap.FFFFFIMPORTANTFFFFF When you balance the airplane later, you may needto move the flight battery forward or aft. The location shown is onlya general location and may differ depending on equipment used.q Cut out each of the decals and carefully apply them to the airframe, using the box cover photos for reference.STEP 6: APPLYING THE DECALSFFFFFIMPORTANTFFFFF It is critical that your airplane be balanced correctly. Improper balance will cause your airplane to lose controland crash!Center of Gravity Location:1-7/8" - 2-1/8" (48mm-54mm) back from the leading edge of the wing, measured at the fuselage sides.FFFFFWARNINGFFFFF This is the recommended C/G range.FOR TEST-FLYING WE SUGGEST YOU START WITH THE C/G AT 2" (51MM), then move it farther back as you becomefamiliar with the flying characteristics of the airplane. It is not recommended that the C/G be located any farther backthan 2-1/8" (54mm).FFFFFIMPORTANTFFFFF Balance the PT-19 Cornell EP ARF with the flight battery installed and the airplane fully assembled.q Install the wing onto the fuselage.q Apply two short pieces of masking tape onto the top of the wing, 2" (51mm) back from the leading edge, measured at thefuselage sides.q Turn the airplane upside down, place your fingers on the masking tape, and carefully lift the airplane. If the nose of the airplanefalls, the airplane is nose heavy. To correct this, move the flight battery back far enough to bring the airplane into balance. If the tailof the airplane falls, the airplane is tail heavy. To correct this, move the flight battery forward far enough to bring the airplane intobalance. When balanced correctly, the airplane should sit level or slightly nose down when you lift it up with your fingers at theC/G location.+ Once you have flown and become familiar with the flight characteristics of the airplane, the C/G can be moved fore or aft withinthe C/G range to change the flight performance. Moving the C/G back will cause the airplane to be more responsive, but less stable.Moving the C/G forward will cause the airplane to be more stable, but less responsive.DO NOT FLY THE AIRPLANE BEYOND THE RECOMMENDED BALANCE RANGE OR ANUNCONTROLLABLE CRASH COULD RESULT!SECTION 15: BALANCING THE PT-19 CORNELL EP ARFq Ruler q Masking TapeYOU'LL NEED THE FOLLOWING TOOLS AND SUPPLIES: