F3S JET AEROBATICS
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F3S Flying and Judging Corner

PictureFIGURE # 1
UP FOR DISCUSSION: Fine points of both flying and judging the 2025 Silver sequence.

All maneuvers are required to be wind corrected. There is a deduction of 1 point per 15° deviation and 0.5 point for half of this (in pitch, roll and yaw).

As shown in the slide of the first figure of the Silver sequence, the Square Loop is performed at the center of the box.
"The first radius of a maneuver does not define the radii for the remaining radii of a maneuver but it is a starting point. As the maneuver progresses, the judge will compare each radius that was just flown to the last radius flown and if there is a difference, then a downgrade will be given based on the severity of the difference." (RULE 5B.8.4. LOOPS).

All 4 lines should have the same length.
"If there is a small deviation, there is a 0.5 point deduction, for a greater deviation, more points should be deducted." (RULE 5B.8.3. LINES).
IDEALLY, the pilot should aim at having all his radii and line lengths match.

On the first vertical, there is a 2x4 point roll, and this should be centered on the line. Similarly, on the 3rd line, there is a ½ roll, and this should also be centered on the line.
"The roll-rate must be constant. Minor variations in roll-rate must be downgraded by 0.5 point, while more severe variations must receive a downgrade of 1 or more points." (RULE 5B.8.5.b). "Whenever a continuous roll, part-roll, snap roll, or a consecutive combination of these is placed on a line, the length of the line before and after the roll or the combination of consecutive rolls must be equal. 0.5 point is subtracted for a minor difference, and 1 or more points for a major difference. If there is a complete absence of a line before or after the roll, 3 points are subtracted." (RULE 5B.8.10).

The exit of the Square Loop is complete when the aircraft reaches the point of the pull of the ENTRY radius. The entry and exit altitude should be the same.

Paying attention to both piloting and judging aspects will make competing in F3S a more enjoyable experience for all.

FLYING & JUDGING CORNER

12/18/2024

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Picture
Maneuver #4  Split S with a 2 point roll.

This maneuver is performed at the end of the box as a turn-around figure. It begins at a higher altitude and when completed, will bring the aircraft lower. All maneuvers are required to be wind corrected. There is a deduction of 1 point per 15° deviation and 0.5 point for half of this (in roll, yaw and pitch).

On entry into the maneuver, the pilot has to perform a 2 point roll (two consecutive half rolls) which will keep the aircraft inverted when finished. "(B)The roll-rate must be constant. Minor variations in roll-rate must be downgraded by 0.5 point, while more severe variations must receive a downgrade of 1 or more points. (c) The start and stop of the rotation must be crisp and well-defined. If a start or stop is badly defined, 0.5 or more points are to be subtracted for each." (RULE 5B.8.5.b,c).

Immediately after completing the 2 point roll, the aircraft must start the pull into the Half Loop, making sure that NO LINE is drawn between the two. “Immelmann Turn and Split-S maneuvers where rolls are always performed immediately before or after or part-loop, which means, the rolls always begin with the start of the lines and stop with the end of the lines. A visible line in-between the two components or rolls and not completely before or after the part-loop, must downgrade the maneuver.” (RULE 5B.8.10).
 
The radius of the half loop should be smooth and constant. "Each occurrence of a minor difference in radius must downgrade the maneuver by 0.5 point, while more severe deviations may downgrade it by 1, 1.5, 2 or more points for each occurrence. The first radius of a maneuver does not define the radii for the remaining radii of a maneuver but it is a starting point. As the maneuver progresses, the judge will compare each radius that was just flown to the last radius flown and if there is a difference, then a downgrade will be given based on the severity of the difference." (RULE 5B.8.4. LOOPS).

After performing the half loop, the aircraft will be upright. The exit of the Split S is complete when the pilot draws a short horizontal line. "All aerobatic maneuvers are entered and exited by a horizontal line of recognizable length. When no horizontal line is flown between two maneuvers, the just-completed maneuver must be downgraded by 1 point and the upcoming maneuver must be downgraded by 1 point. The last maneuver of a schedule must have an exit line of at least one (1) second in duration for the maneuver to be deemed complete." (RULE 5B.8.3)

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    • GERMAN F3S Championships
  • Contact
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