Mxsmanic wrote:
How many uses are there for a stopwatch or similar device aboard an aircraft?
I note that a clock with an elapsed-time function is required equipment. The
only time I've had occasion to use it is for holding patterns. What other
uses are there?

Holding patterns, procedure turns, timing non-precision approaches from
the FAF to determine the missed approach point, partial panel turns
(you make a standard rate turn for what ever amount of degrees of
turn you need, easier than chasing the whisky compass).