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Here is the Basic Call sheet I hand out when someone asks about IMAC.
I would say that a good caller experience on your first time out can make a world of difference. Calling the manueuver, describing the maneuver, helping with little corrections and helping the pilot stay out of trouble. |
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I like that call sheet.
I dont like the "270 degree" i prefer 5/8 loop but that is preference . The good thing about that is you put in enough criteria information in there without boring or bogging down the sheet. |
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To me this is analogous to calling a cotton swab a Q-tip, and facial tissue, kleenex. I personally wouldn't/don't discourage people from calling a maneuver (on their own call sheet) whatever helps them remember it! When I was in basic, my caller and I always referred to a tear drop as an ice-cream cone because that's what worked for us. That said to each their own. A.J. |
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I actually know two Unlimited pilots who call Family 1.3.x (Three Lines in Aresti... usually referred to as "Bowtie") ....They call them "Fish Tail. And in addition, they call Family 7.3.x (3/4 Loops in Aresti... usually referred to as "Goldfish")... They call them "Fish Head".
THEY understand exactly what needs to be done when they call for each other. Kinda funny what some pilots call these maneuvers. W |
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United States, GA, Mableton
Joined May 2006
1,797 Posts
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Straight from the Rule Book
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Judging chair question?? Corollary
This is a question for everyone and anyone who has ever sat in the judging chair and yes, you guessed right, I am about to ask the question, again, about a snap???
OK from a judge's perspective? 1st lets refresh everyone as to the IMAC definition of a snap: 8.9.3: Family 9.9: Snap Rolls (“Flick Rolls). Snap rolls may be positive (pitch to the canopy) or negative (pitch to the wheels). Other than this difference, all judging criteria are the same for either type of snap. Snap rolls are difficult to judge due to the speed of the snaps and the variation in the manner in which different aircraft perform snaps. However, two things must be present in order that a judge can decide that a snap roll has occurred. They are: 1. The nose must pitch in the correct direction as indicated by the ARESTI figure 2. Autorotation must be initiated. Given the high energy nature of the snap, it is very difficult to tell if these two items are occurring simultaneously or sequentially. Therefore, there is no requirement that these two movements start simultaneously. They may occur simultaneously or sequentially in the order presented. From a judging perspective, if you see the pitch departure in the correct direction, then one more requirement is the auto-rotation. Would it be safe to say, a corollary is, since it occurs so fast, that if you do not see a roll, then it is a snap? meaning, if I set in my mind to look for "do I see a roll or not" would this be a safe way to be able to look at it? to Zero the snap, you would have to be certain that: 1. No pitch departure in the proper direction 2. No pitch departure (in which case, the airplane would roll and not auto-rotate) 3. stopping the auto-rotation 90 degrees shy of where it should have stopped 4. If a line is drawn between pitch departure and then auto-rotation (delay), then a zero 5. no autorotation was done? When does a snap turn into a barrel roll? |
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I have also seen many snaps where there is yaw and roll, but no pitch departure. These can be deceiving because they look snappy, but no elevator is applied. A key to look for in a positive upright snap is altitude loss. A properly performed snap will usually gain a little altitude, whereas one with no pitch departure will actually finish on a lower line that it started.
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