2023 FAI F3P WORLD CHAMPIONSHIPS

Class F3P

Information about the F3P class

The FAI / CIAM class F3P is an aerobatic event for radio controlled model aircraft flown inside sporting arenas. Competitors fly a predefined sequence of manoeuvres to the highest degree of precision possible. Judges are positioned immediately behind the competitor and evaluate the quality of each manoeuvre. The manoeuvre sequences are designed to be flown in spaces like a small sporting arena, but for national and international competitions typically bigger arenas are selected but this is not affecting the set of manoeuvres.

F3P models are allowed to be up to 1,5 meters in wingspan and length, but cannot exceed 300 grams weight. Any powerplant may be used as long as it does not generate any kind of emissions, or exceeds 42 volts. Construction materials generally used are foam, carbon fiber, and mylar. At World Championships level, the quality of the models is exceptional and you can see models with weight close to 40 grams or even less. Two or even one-cell lipos are used by all competitors for power supply, with the top models using counter-rotating coaxial motor systems.

In F3P World Championships there is an individual and team classification. FAI member countries may enter a team of maximum 5 competitors as a national team provided that at least one is a junior (age limit 18 years in the year 2023) and at least one is a woman. Team results are the sum of the three best competitors' scores at the end of the contest.

Even though takeoffs and landings are not judged, F3P models must takeoff and land on the “runway” without assistance. After takeoff, a maximum of two 180 degree turns are permitted prior to commencing the aerobatic sequence. An F3P sequence consists of manoeuvres which include elements and combinations of lines, loops, rolls, knife-edge, stall turns, torque rolls, and tail slides.

Each competitor will be entitled to four preliminary flights, of which the best three normalized scores will determine his placing. For each flight, the highest score will be set equal to 1,000 points, and the remaining competitors scores will be equate to a percentage of the highest score. For preliminary flights, the “AP-23” sequence is flown.

At World and Continental championships, the top 25% of pilots (minimum of 10) complete three additional finals flights using the F3P-AF sequence. The total of the best three preliminary flights is normalized to 1,000 points and counted as a single score. This single score and the three finals scores give four normalized scores. The sum of the best three normalized scores is used to determine the final placements. The fourth score is only utilized in the case of a tie.

The competitor's performance is assessed by a panel of judges who will award marks, independently from each other, between 0 and 10 for each manoeuvre. Manoeuvres are assigned a difficulty factor (K-factor, which is a multiplier applied to each manoeuvres) depending on the complexity of the particular manoeuvre. Judging is based on four basic criteria: precision (or geometry), smoothness and gracefulness, positioning (display), and size of manoeuvres. Points are subtracted for various types of defects observed by the judges, the severity of these defects, and the number of times these defects are observed. Should the aircraft touch the walls, floor, or ceiling, the manoeuvre being performed is scored a zero.

Sequences

Annex 5M F3P – radio controlled indoor aerobatic aircraft description of manoeuvres

Preliminary schedule AP-23 (2022-2023)

AP-23.01 Pyramid with quarter roll, half roll integrated, quarter roll

From upright, pull though a one eighth loop into a forty-five degree upline, perform a quarter roll, perform a quarter knife-edge loop with integrated half roll into a forty-five-degree knife-edge downline, perform a quarter roll, push through a one eighth loop, exit inverted.

AP-23.02 Crossbox Top Hat with half roll, half roll, half roll

From inverted, push through a quarter loop into a vertical upline, perform a half roll, perform a quarter knife-edge loop into a crossbox knife-edge flight, perform a half roll, perform a quarter knife-edge loop into a vertical downline, perform a half roll, pull through a quarter loop, exit upright.

AP-23.03 Loop with half roll integrated, half roll in opposite direction integrated

From upright, pull through a loop while integrating a half roll into the first 180 degrees of the loop and a half roll in opposite direction to the first half roll into the second 180 degrees of the loop, exit upright.

AP-23.04 Shark Fin with quarter roll, half roll, quarter roll

From upright, perform a quarter roll into knife-edge flight, perform a quarter knife-edge loop into a vertical upline, perform a half roll, perform a three eighths knife-edge loop into a forty-five degree downline, perform a quarter roll, push through a one eighth loop, exit inverted.

AP-23.05 Three quarter Torque Roll, Upline, three Quarter Torque Roll in opposite direction

From inverted, push through a quarter loop into a vertical upline, perform a three quarter torque roll, followed by a vertical upline, perform a three quarter torque roll in opposite direction to the first torque roll, pull through a quarter loop, exit inverted

AP-23.06 Half Hourglass with two consecutive quarter rolls, roll, half roll

From inverted, pull though a one eighth loop into a forty-five-degree downline, perform consecutively two quarter rolls, pull through a three eighths loop into a vertical upline, perform a roll, pull through a three eighths loop into a forty-five-degree downline, perform a half roll, pull through a one eighth loop, exit upright.

AP-23.07 Rolling Circle with two rolls in opposite directions

From upright, perform a rolling circle with two rolls in opposite directions integrated (first roll to the outside), exit upright.

AP-23.08 Figure ET with quarter roll, quarter roll

From upright, pull through a one eighth loop into a forty-five degree upline, perform a quarter roll, perform a five eighths knife-edge loop into a vertical downline, perform a quarter roll, pull through a quarter loop, exit upright.

AP-23.09 Crossbox Figure Z with quarter roll, four consecutive one eighth rolls, quarter roll

From upright, perform a quarter roll into knife-edge flight, push through a three eighths knife-edge circle into a forty-five degree cross box line, perform consecutively four one eighth rolls, push through a three eighths knife-edge circle, perform a quarter roll, exit inverted.

AP-23.10 Stall Turn with three quarter roll, quarter roll

From inverted push through a quarter loop into a vertical upline, perform a three quarter roll, perform a stall turn into a vertical downline, perform a quarter roll, pull through a quarter loop exit upright.

AP-23.11 Square Loop with quarter roll, quarter roll, quarter roll, quarter roll

From upright, in the center perform a quarter roll into knife-edge flight, perform a quarter knife-edge loop into a vertical upline, perform a quarter roll, pull through a quarter loop, perform a quarter roll, perform a quarter knife-edge loop into a vertical downline, perform a quarter roll, pull through a quarter loop, exit upright.

Note: The manoeuvre is finished when the aircraft has crossed the center line.

FINAL SCHEDULE AF-23 (2022-2023)

AF-23.01 Square Loop with half roll, quarter roll, two consecutive quarter rolls, quarter roll

From upright, perform a half roll in the center, push through a quarter loop into a vertical upline, perform a quarter roll, perform a quarter knife-edge loop into knife-edge flight, perform consecutively two consecutive quarter rolls in the center, perform a quarter knife-edge loop into a vertical downline, perform a quarter roll, pull through a quarter loop, exit upright.

AF-23.02 Double Stall Turn with half roll, half roll, half roll

From upright, pull through a quarter loop into a vertical upline, perform a half roll, perform a stall turn into a vertical downline, perform a quarter knife-edge loop into a knife-edge crossbox line, perform a half roll, perform a quarter knife-edge loop into a vertical upline, perform a half roll, perform a stall turn into a vertical downline, push through a quarter loop, exit inverted.

AF-23.03 Double Humpty Bump with quarter roll, half roll integrated, quarter roll, quarter roll, half roll integrated, quarter roll

From inverted, before the center push through a quarter loop into a vertical upline, perform a quarter roll, perform a half knife-edge loop (towards the center) with integrated half roll into a vertical downline, perform a quarter roll, push through a half loop in the center into a vertical upline, perform a quarter roll, perform a half knife-edge loop (away from the center) with integrated half roll into a vertical downline, perform a quarter roll, push through a quarter loop, exit inverted.

AF-23.04 Half Square Loop with four consecutive one quarter torque rolls

From inverted, push through a quarter loop into a vertical upline, perform consecutively four one quarter torque rolls on same level, push through a quarter loop, exit upright.

AF-23.05 Loop Crossbox Circle Combination with half roll integrated, half roll integrated, half roll integrated, half roll integrated

From upright, push through a half loop, while integrating a half roll, perform a crossbox circle with two half rolls in opposite direction integrated, pull through a half loop, while integrating a half roll in opposite direction of the half roll in the first half loop, exit upright.

AF-23.06 Half Loop with two consecutive quarter rolls in opposite direction integrated

From upright push through a half loop while integrating consecutively two quarter rolls in opposite direction, exit inverted.

AF-23.07 Crossbox Top Hat with quarter roll, two consecutive one eight rolls, two consecutive one eight rolls in opposite direction, quarter roll

From inverted, push through a quarter loop into a vertical upline, perform a quarter roll, push through a quarter loop into a horizontal crossbox line, perform consecutively two one eighth rolls, followed by two consecutive one eighth rolls in opposite direction, push through a quarter loop into a vertical downline, perform a quarter roll, pull through a quarter loop, exit upright.

AF-23.08 Corner Combination with half roll integrated, quarter roll, half roll integrated

From upright, perform a quarter circle into a crossbox line, while integrating a half roll, push through a quarter loop into a vertical upline, perform a quarter roll, pull through a quarter loop while integrating a half roll, exit upright

AF-23.09 Triangle with quarter roll, half roll integrated, quarter roll

From upright, fly past center, push through a three eighths loop into a forty-five degree downline, perform a quarter roll, perform a quarter knife-edge loop into a forty-five degree upline, while integrating a half roll, perform a quarter roll, push through a three eighths loop, exit upright.

AF-23.10 Reverse Shark Fin from Top with quarter roll, half roll, quarter roll

From upright, push through a one eighth loop into a forty-five degree downline, perform a quarter roll, perform a three eighths knife-edge loop into a vertical upline, perform a half roll, perform a quarter knifeedge loop, perform a quarter roll, exit upright.

AF-23.11Triangle Crossbox Square Combination with quarter roll, three consecutive one eighth rolls, half roll, three consecutive one eighth rolls, quarter roll

From upright, push through a one eighth loop into a forty-five degree downline, perform a quarter roll, pull through a quarter knife-edge loop into a crossbox line with forty-five degree wing level, perform consecutively three one eighth rolls into knife-edge flight, push through a quarter knife-edge circle, perform a half roll, pull through a quarter knife-edge circle into a knife-edge crossbox line, perform consecutively three one eighth rolls into forty five degree wing level flight, push through a quarter knifeedge loop into a forty-five degree upline, perform a quarter roll, push through a one eighth loop, exit upright.

Option

From upright, push through a one eighth loop into a forty-five degree downline, perform a quarter roll, push through a quarter knife-edge loop into a crossbox line with forty-five degree wing level, perform consecutively three one eighth rolls into knife-edge flight, pull through a quarter knife-edge circle, perform a half roll, push through a quarter knife-edge circle into a knife-edge crossbox line, perform consecutively three one eighth rolls into forty five degree wing level flight, pull through a quarter knife-edge loop into a forty-five degree upline, perform a quarter roll, push through a one eighth loop, exit upright.

Note: Exit starts in the center.

Organizers

Location

Jonava

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