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Official IMAC 2017 Knowns

Discussion in 'IMAC>>>Aircraft, Techniques, Equipment, etc.' started by tom wheeler, Sep 22, 2016.

   
  1. WMcNabb and thurmma like this.
  2. tl3

    tl3 50cc

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    Most of this is accurate, but it is an outdated doc. Partial point / hesitation rolls are now denoted as 2 x 4, 4 x 8, etc as opposed to 2/4, 4/8, etc.
     
  3. tl3

    tl3 50cc

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    There will be a graphical presentation of the 2017 Basic sequence and the primary judging criteria posted soon on the IMAC site. It is in the final editing stages now; once it's complete and up I'll put a link here.
     
    thurmma likes this.
  4. Buddy5303

    Buddy5303 70cc twin V2

    Can someone tell me what a 360* acrobatic turn is? Is this a flat turn using rudder only or like a horizontal loop


    Sent from my iPad using Tapatalk
     
  5. tom wheeler

    tom wheeler 30cc

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    From the rule book:


    8.2.1: Turns. In aerobatic competition, a turn is divided into three parts:

    1: Establishing the bank using a roll on heading.

    2: The turn itself.

    3: A roll back to straight and level flight on heading.


    Let’s look at the turn during each of these three parts. First, the roll to establish the bank. This must be a roll of between 60 and 90 degrees; it must be performed on the entry heading; and the aircraft must maintain a constant horizontal line. Once the roll is completed and the angle of bank is established, the competitor immediately performs the turn. The turn must maintain the established angle of bank throughout. The aircraft must also maintain horizontal flight. The rate of turn is constant throughout and the maneuver must be wind corrected so that, for instance, a 360-degree turn will be a perfect circle. It should be noted that the wind correction cannot be performed by visibly changing the bank angle.

    As soon as the aircraft is on the exit heading, the competitor performs another roll at a rate equal to the entry roll. Again, the aircraft must maintain a constant horizontal line.

    Downgrades:

    a:
    The angle of bank established by the initial rolling maneuver must be at least 60 degrees and not greater than 90 degrees. Any less or more is a 0.5 point deduction for every 5 degrees.

    b: The angle of bank, once established, must remain constant. Any deviation is a 0.5 point deduction for every 5 degrees of deviation.

    c: The rate of roll must be the same for the entry and exit rolls of this figure. Any deviation is a one (1) point deduction. SCA-22

    d: The aircraft must maintain a constant altitude throughout the figure. Any variation would be 0.5 point deduction for every 5 degrees of change.

    e: The rate of turn must remain constant. Any change would be not more than a one (1) point deduction for each change. Note that the rate of turn may appear to change in a strong wind, when it really isn’t changing. The judges must always keep the wind in mind and give the pilot the benefit of the doubt if there is any question.

    f: The aircraft must begin and end on the prescribed heading. Any deviation is a 0.5 point deduction for every 5 degrees of deviation.
     
    thurmma likes this.
  6. Buddy5303

    Buddy5303 70cc twin V2

    Thanks Tom. Guess I need one of those rule books if I am going to learn and try flying iMac.


    Sent from my iPad using Tapatalk
     
    thurmma likes this.
  7. tom wheeler

    tom wheeler 30cc

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    Buddy5303 likes this.
  8. Buddy5303

    Buddy5303 70cc twin V2

    Thank you Tom. Will get it downloaded and start reading.
     
  9. tl3

    tl3 50cc

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    Buddy,
    Downloading and reading the rulebook is great, but downloading the rulebook, viewing the online judging series, and attending a judging school is even better ;-) And all of those things are easily accomplished:
    http://www.mini-iac.org/Event-Details/PID/231 - the National Judging School is being held in Ft Worth 1/28 - 1/29. If that one doesn't work for you, watch the south central contest schedule for others.
    http://www.mini-iac.org/Downloads - Click on the "Training Info" tab; at the bottom of this page you can go through the entire video series on judging. There are also some additional helpful resources on the training info page.
    Note, there are some rules changes going into effect 1/1, so if you download the rulebook now, be sure to get an updated later, the online series will also be updated to reflect the rules changes in the near future.
    t
     
    thurmma likes this.
  10. Buddy5303

    Buddy5303 70cc twin V2

    Thanks tl3 I will look into attending that judging class. I want all the help I can get.
     
    thurmma likes this.
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