ZLA is approximately where the wing chord line is. Not the flight path, and not the fuselage centerline. If you do not have inverted fuel and oil capability your engine will be coughing and quitting during the roll.įor the line before and the line after the roll, however, the judging standard is the ZLA, or Zero Lift Axis of the wing. That is the Aresti judging standard for all competition rolls. These uncoordinated inputs are needed so that the Center of Gravity Track (CGT) of the aircrafts’ CG dot follows a straight 45 degree downline while performing the roll. By coordinated, I mean the ball in the inclinometer is centered during the roll.Ī negative g push must be used initially to hold the line before the roll, followed by a ‘boot full’ of top rudder as the roll is driven toward the knife edge. The coordinated Bob Hoover 1 g Aileron Roll, or a zero g Primary Aileron Roll, do not exist in the Aresti language. This roll must also be flown as a Slow Roll, even though Aresti language calls it an Aileron Roll. On the 45-degree line the roll must be centered. The 45 Degree down line, the Roll, and the Aresti judging standards Higher speed aircraft don’t have as much trouble with this segment. So Giles had to enter the maneuver faster and faster until he had enough energy for the judges to ‘see’ the up line. Some of the the judges kept writing “no line” on his scoring sheets. Giles found that pulling to vertical, pausing for a split – second on the up line, and then flying the radius across the top (what he called “bump and pull” or “bump and go”) was not good enough. The great Giles Henderson, 4 - time Sportsman National Champion and 4 – time Soucy Award winner, had difficulty with drawing an acceptable up line when flying the Wedge in his Clipped Wing Cub (See Giles article “13 Seconds” in the April 2007 issue of ‘Sport Aerobatics’). Also, the Aresti pictographic language is set to always have you fly into the arc, not against the arc, of the rolling segment arrow. Flying a maneuver backwards is a zero score. Don’t do a Wedge when a Reverse Wedge is called for, or vice versa. Look closely at the figure for the start dot and the end cap to know which way to fly the figure. It ends with a horizontal cap line for figures that exit on the Y – axis. The maneuver ends with a vertical cap line for figures that exit on the X – axis of the box. Remember, in Aresti language any maneuver starts with a dot. A Reverse Wedge would be just like a Reverse Half Cuban, where the 45 degree up line is flown first followed by the vertical down line. When we say ‘Wedge’ we mean when the up line comes first followed by the 45 degree downline. The vertical line does not have to be any minimum length, but the judges have to see it. Put the wedge and the previous maneuver close enough together to ensure that you can feed enough energy into the Wedge to do both jobs. Start this maneuver fast, as fast as you can. It will be very hard, though, for low horsepower/high drag aircraft to have enough energy to show the vertical line and to also draw a constant radius across the top. That is another feature of Family 1 figures. Second, the lines within the figure do not have to be the same length. A non – constant radius across the top is a downgrade. With that being said you must still have enough energy to draw a constant radius across the top. The Wedge is a Family 1 figure, which means that the 3 partial loops, or radii (radius plural is ray-dee-eye, not ray-dee-uss-uzzz) do not have to be the same size.
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