What is a "typical" student capacity for others' online courses? At our CC, it is 25. The reason I raise the issue is that the governance council I'm chairing this year will be looking at this.
MOST colleges that I have researched on this (for which there is data available) hover in at 25-35, most in the 25-28 range. My literature review on best practices suggests that 24 is optimal, but also assumes low attrition.
In a capstone course, where students have had prior online course experience, the cap CAN be higher. the trick is to organize the work more like an online grad level course, with discussions, a few short reaction papers (1000 words - teach them to be clear, concise and cogent), and one FINAL paper due 2-3 weeks before the course ends.
For English classes, especially the writing intensive, the problems are more severe. instructors have to 'pace' the assignment due dates. Now this is less of a problem if the faculty have only one online section each at a time, but becomes a major burnout issue if they are doing 4 or 5 sections online in a semester.
This is NOT going to sit well with some on the fora, but think back to when you were a student. Did you take 5 writing intensive courses in a semester? probably not: you took basket-weaving, or underwater dance, or some other course to offset the workload. Why can faculty not handle ONE 'light' class in semesters when they also have several sections of writing intensive classes? because of seniority rules, contracts, etc...... In order to make this happen, there has to be some give-and-take.
I interviewed one long-time online faculty member and was told that each semester, one faculty member could 'handle' @100 students online, so there may be some reason to look at total head-count-contact rather than section size per se. PM me if you want to discuss....