The IMAC website will in a short period of time have IMAC introduction narratives for Basic and Sportsman for those new to Scale Aerobatic competition. In the meantime thanks for writing these as they will help those who have not yet learned to read Aresti. Aresti is a very simple visual language that is far superior to any written sequence dialog and should be learned very early on in anybody’s IMAC experience.

That all being said there are a few comments about your narrative, first, figure one that some call a Bowtie or double sharks tooth, this is from Family One so all lines can be of different length and each radii do not need to match as well. That means the entry and exit altitude or the altitude of the top and bottom of the vertical line do not need to match anything. The key to Family One is that the lines are 45, 90, horizontal and any roll element is centered on that line.

Figure eight you call a “Half Square Loop” and many have used this name for this figure for years, but for us who teach judging it’s not the description we prefer. Half Square Loop suggests a set length of line for the entry and exit lines, and this is not so. What this figure really is just a “Vertical Upline” and this is how we describe this figure. I know this might seem a little picky, but it all has to do with the mindset a figure description suggests.

Figure 9 does not have a real strong “traditional” name, some call it just as you described or some might say a “Figure Nine from the Top”.
Thanks for taking the time to write these narratives and I hope everyone enjoys and learns something with the 2008 Knowns.

Tom Wheeler
IMAC Sequence Committee Member
Northcentral Judging Instructor