Thanks Blackshire. I shall endeavor to use my newfound knowledge for the greater good, which in this case means better-looking hangers on my model.

At this point I can only dream of scale drawings for the IRIS-T itself. Every time I try to derive dimensions and proportions from a photo, they seem to come out different from all the other photos. Up to this point length and diameter are the only dimensions I know for sure, now I'll add the hangers to the "known" list.