[AlaskaRC] IMAC Judging Tips

[Armand Marshall]

IMAC JUDGING TIPS

>From some of the recent discussions (both online and at the fields) I thought I'd start sending out (every now and then) a few excerpts from the AMA documents on how some of the IMAC maneuvers should be judged.

This comes from a section titled "Basic Components of Aerobatics":
If within a figure two or more lines must be of the same length, an observed variation is penalized by reducing the grade in the following manner (for example, if there is a roll on a vertical down line):

i.                     A visible variation = 1 point deduction

ii.                   If the lengths vary by 1:2 = 2 point deduction

iii.                  And so forth up to a 3 point deduction

iv.                 No line either before OR after roll = 4 point deduction

v.                   No line at all before AND after roll = 2 point deduction

This comes from the Hammerhead section:
Hammerhead

i.         The length of the vertical up and down lines need not be equal.  As such, the altitude of the horizontal lines at the start and finish of the hammerhead may be different.

ii.       Any roll(s) up or down must be positioned so that the lines before and after the roll(s) are of equal length.

iii.      Any pendulum movement observed after the pivot is subject to downgrade using the 0.5 points per 5 degrees rule.

By the way, there is an excellent online judging school (completely free and painless) on the IMAC website.  You don't even have to register or login or anything.  http://training.mini-iac.com/Default.html .
This will not only help you at judging, but it actually will help you get better at flying the maneuvers (even if you are not ever planning on actually entering an IMAC contest).  In other words, this is for everybody that likes to fly RC planes and have something fun to do between the takeoffs and the landings!

If nothing else, at least it gives you more footing when you want to argue a point at the field.
[If that previous sentence makes you go 'hmmm, is he talking about me?', then you probably should check out the online judging school!]

(And I bet you thought I was going to talk about spins!  Hah!)

Armand Marshall - Treasurer
Treasurer at AlaskaRC.org
Alaska Radio Control Society
PO Box 232162
Anchorage, AK 99523-2162

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