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The Mike Karnes Scale Aerobatics National Championships - Rules

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  • The Mike Karnes Scale Aerobatics National Championships - Rules

    The Mike Karnes Scale Aerobatics National Championships - Rules

    Click image for larger version  Name:	Nats 2018-9329.jpg Views:	0 Size:	4.50 MB ID:	3414

    1. The AMA Scale Aerobatics NATs will take place June 16th - 19th , 2021 at the AMA Site in Muncie Indiana.
    2. Entry fees are as follows (for entries received on or before May 28th, 2021):
    Basic Registration Fee: $50.00 Junior: Free Sr: Basic registration fee plus $25
    Open: Basic registration fee plus $75
    NO ENTRIES OR REFUNDS after June 10th, 2021
    Late entries (those received on or after May 29th, 2021) will be subject to a $125.00** late entry surcharge.
    ** Amount subject to change.
    a. Please note when filling out the contest entry form there are some additional questions to answer:
    b. Class competing? - 2.4 GHz ONLY
    c. Are you planning to participate in the Freestyle Contest? - 2.4 GHz ONLY
    Your entry fee covers the contest and one banquet ticket, additional banquet tickets will be available for purchase during the event for $10.00 from the Co-Event Director.
    3. Site 3 will be available for practice June 14 and 15, 2021. Practice will end on the 15th at 4:30 PM to allow for Pilots Meeting at 5:00 PM. Contestants arriving at the IAC Tuesday, June 15th, 2021 may go to the head of a practice line for their first flight. Practice flights are limited to 15 minutes per flight. Pilots exceeding this may be grounded from practice for a period of time determined by the ED, Co-ED or other event team personnel. Goal being all pilots have an equitable opportunity for practice flights.
    4. Upon arrival, (prior to flying) please check in and pick up your Contestant packet at the front desk of the AMA building (first building on the left across from the museum). (AMA hours TBA) Note: Any and all local / AMA Covid 19 remediation measures and ordinances must be adhered to at all times.
    5. Remaining Contestant Packets will be available from the Event Director at the pilots meeting June 15th 2021.
    6. All flight lines shall be closed to contestants at 4:30 pm on Tuesday June 15th, so everyone has adequate time to attend the 5pm meeting in the upstairs Boardroom at the AMA Headquarters.
    7. Pilot’s Meeting / Final Pilot Roll Call 5:00 pm Tuesday June 15th, 2021. DO NOT BE LATE. Final Pilot Roll Call time may be adjusted earlier if attendance is higher than expected.
    8. The flight order will be established by pin draw at Tuesday’s Pilot’s Meeting.
    a. Shared aircraft / caller schedule conflicts will be taken into consideration at this time. Please note: Work assignments DO NOT constitute a conflict.
    9. Contestant Judging will be used to during the 2021 NATs. A contestant who misses a judging assignment will have their next round ZERO’d! Judging assignment substitutions are permitted, but must be pre-approved by the Event Director and Chief Judge. Should said assignment be missed, the originally assigned judge will receive the zero for a missed judging assignment.
    10. The 2019-2022 AMA Scale Aerobatic Rules SHALL be followed. For questions, refer to the rulebook. The only exception to the 2019-2022 AMA Scale Aerobatic Rules will be the final day drop schedule. NOTE: We will be using the standard sequences for 2021.
    a. Side Force Generators shall not be permitted during any flight (including freestyle) during the AMA Scale Aerobatic National Championships.

    11. The Wednesday Unknown will be distributed after the Tuesday 5:00pm Pilots/Judge’s Meeting in the AMA board room.
    12. The Wednesday Unknown will be flown the third [3rd] round. Remaining two [2] Days they will be flown first. The Final Day will be 1 Unknown, 1 Known, 1 Known, and the Final Unknown.
    13. Wheels up all days will be 8:00 AM! (Weather and Ceiling Permitting) Wheels up time may be adjusted earlier if attendance is higher than expected.
    a. The pilot order for Thu - Sat will be drawn after wheels-up on Wednesday using Excel Random Pull Generator as done in 2017 2018, and 2019 NATS
    b. De-confliction for borrowed aircraft, shared callers, etc. will be completed at this time.
    c. Should a contestant need to drop to the end of the line during a round for maintenance, radio problem, etc., the contestant’s pin placement will return to the original position once the round is complete .
    e. Callers and airplanes being shared between classes shall be considered only on the evening of the original pilot draw and applied for the random draw for the final 3 days.
    14. DROP Schedule – Wednesday, Thursday and Friday – SEE pages 6 & 7 in the IMAC Contest Standards .
    15. The next two [2] days Unknown will passed out each evening after all flying is complete. Unknowns will be available from the Event Director and shall be flown the first [1st] round the next two [2] days (Thursday and Friday).
    16. We are hoping to get in as many known rounds as possible and one unknown each day each of first 3 days. Your cooperation by being ready to fly and judge when it is your turn will facilitate more flying. End of Wednesday June 16th, 2021 we will have a better idea of the flight line time lines and a possible schedule modification.
    17. There will be two flight lines; Scale Aerobatics time constraints will be in place and adhered to:
    13.1: “The contestant has two (2) minutes to start his/her engine and become airborne.”
    The clock will start at the beginning of the 7th maneuver being flown by the preceding pilot.
    13.2: “The contestant has one (1) minute from the time the wheels leave the ground during takeoff to enter the aerobatic airspace.” (Line Boss will dictate if a wait and or hold is required)
    This time will start no later than the previous contestant exiting the aerobatic airspace. You may need to enter a holding pattern to allow the preceding pilot to complete their sequence. You will have 1 minute from the time the previous pilot call out of the box to call in the box unless otherwise directed by a Line Boss or the judges.
    18. Official Flights / Attempts / Notification – 10.1.1 A vocal signal is mandatory to initiate the attempt. If a vocal declaration is not made the pilot becomes subject to the other standard constraints stipulated in these rules, e.g., time limit for entering, no aerobatics before entering, etc. Once the attempt is made by means of the vocal declaration, judging will begin as soon as the aircraft departs from the wings-level horizontal entry line and enters the first maneuver of the sequence. The horizontal entry line to the first maneuver of a sequence is not judged.”
    Number of Flights. 11. An official flight (round) for the known program is defined as a minimum of one (1) sequence, and not more than two (2) sequences, as published by the CD in the contest announcement. The CD may also use a single sequence rounds if time constraints prevent completion of a planned two (2) sequence round. When an official known flight (round) is two (2) sequences, the contestant is to be able to complete the round without refueling between sequences. If the second sequence cannot be completed the contestant will receive a zero (0) for each un-scored maneuver in that sequence. An official flight (round) for the unknown program is defined as one (1) sequence. There shall be no limit on the number of flights (other than that imposed by time available).

    19. Turn around maneuvers - 13.5. Prior to entering the aerobatic airspace, between sequences, and prior to landing, pilots shall be allowed to perform only the following trim and positioning maneuvers: • Turns. • Half Cubans or Reverse Half Cubans with only a single ½ roll on the 45 degree line. Note: The 1/2 roll is optional based on the aircraft orientation required to initiate the aerobatic sequence. • Single 1/2 roll to inverted immediately prior to an attempt when the first figure requires an inverted entry. • Single 1/2 roll to upright following an inverted exit from the last maneuver. • Half Loops: 1) Half inside loop with only a single ½ roll on entry or exit. Note: The 1/2 roll is optional based on the aircraft orientation required to initiate or exit the aerobatic sequence. 2) Half outside loop to upright for sequences that end in inverted flight. Note: For sequences that start inverted, once inverted the pilot is committed to the attempt and must initiate the sequence. Unless specifically noted, all turn-around figures must initiate from upright flight, and aircraft must be returned to upright flight upon completion of the first sequence. Exceptions to allowable turnaround figures may only be directed by the CD or line boss in the course of managing the airspace. Pilots will follow such directions and no penalty will apply. Turnaround maneuvers may not be performed at low altitude or directly in front of the judges. No other aerobatic maneuvers are allowed immediately following the airplane breaking ground. Academy of Model Aeronautics Competition Regulations | Radio Control Scale Aerobatics 10 An illegal maneuver performed before entering a sequence will result in zeroing the following sequence. An illegal maneuver prior to landing will result in zeroing the preceding sequence. NO LOW ALTITUDE FLYBY’s ARE ALLOWED and will result in a Zero’d Round!
    20. Request for a score sheet printout shall be made on the Sign Up sheet posted NO LATER than 3pm (1500) each day. The sheets take time to print and should be ready shortly after flying completion and available from the ED only. Please do not ask Score Keepers for Scores or Printouts directly.
    21. Friday June 15th, 2021 (Depending on attendance) The top 50% in each class will advance to the final day with no less than 10 contestants and no more than 15 contestants in each class. Example – if a class has only 20 participants then the top 10 will move forward to the final day; but, if there are 18 in a class, ½ would be 9, so the top 10 will participate in the final day. But, if there are 36 in a class ½ is 18 so only 15 will move on to Saturday.
    22. Friday evening at the banquet, two [2] UNKNOWNS will be passed out for Saturday’s flights.
    23. All finalists will advance to the 4th day of competition with the previous three (3) days scores normalized as one day. The first three days will be weighted at 80% and the 4th day of contest score weighted at 20%.
    24. All eligible contestants scores from the first three days shall count, in full, towards their IRPS regional points tally.
    25. Saturday’s (finals) flying schedule is as follows: Unknown 1, Known 1, Known 2, Unknown 2. All rounds are single sequences with each sequence being judged by a different panel of judges.
    a. One (1) Unknown shall be dropped.
    b. One (1) Known shall be dropped.
    c. Contestants keep their highest scoring single Unknown, and highest scoring single Known rounds of the Finals rounds which combined constitute 20% of their contest score and shall be combined with the previous three day scores, weighted at 80%, to determine the final score.
    Freestyle Round(s)

    26. Upon completion of precision aerobatic competition there will be a Freestyle Pilot’s and Judges Meeting. Then the Freestyle will begin. Freestyle music is due to the “Chief Judge” by end of flying on Wednesday June 16th, 2021. If we do not have your music by this time you may still fly freestyle, but with no music. If your music is on your phone make the CD aware. Also if on phone, you must provide “pin” to unlock phone and have music already cued for play. (**I may add a 2nd Round of Freestyle Earlier in the week of flying dependent on time and participants desire to add a 2nd round**).

    Some more information which some may find helpful. I will update the list as it becomes available.
    · Concessions will be onsite (Arranged by AMA).
    · The Friday Night Banquet will be on site in the McCullough Room.
    · Be prepared for a variety of weather conditions, it may be hot so please stay hydrated. But, remember in 2009 & 2011 it was in the mid 40s for much of the contest.
    · After hours, please feel free to mingle throughout the campus and get to know your fellow pilots.
    · Friday evening, prior to the Banquet, the Museum will be open for NATs Contestants and their families.
    · Please obey all traffic signs while on AMA property.
    · Any and all local / AMA Covid 19 remediation measures and ordinances must be adhered to at all times.

    2021 NATS Rules.pdf
    Attached Files
    Doug Pilcher

  • #2
    WOOOHOOOO We can do ROLLERS!!!


    • #3
      Online Registration with AMA is Open now for NATS

      Nats 2021 RC Scale Aerobatics | Academy of Model Aeronautics (

      Doug Pilcher