The fact that I'm creating a topic of this nature may come to a surprise to many of you, but I feel it's necessary because I'm getting at least three different answers based on my own research.
1) Wikipedia: http://en.wikipedia.org/wiki/16_mm_film#Super_16_mm
WP states the camera aperture is 12.52 by 7.41 mm (0.493 by 0.292 in). This gives us an aspect ratio of 1.6884:1 (1.69:1). Unfortunately, nothing is cited clearly in that article (shocker!). For an interesting twist, the entry also lists regular 16 mm as having a height of 7.49 mm (0.295 in). I thought Super 16 just extended t