Kadanzer Weyr covers a territory that is almost the size of the entire Northern Continent. Usually only one Flight flies each Threadfall, although in the event of bad weather or other problems, the Weyrleader might decide to send two Flights up in shifts. During each Threadfall, the Flight that is scheduled for the next 'Fall is "on deck" in case bad weather or injuries make it necessary to use them as reinforcements. Should they be called up, the rotation shifts a notch and the next 'Fall will be flown by the Flight after them.

It works out that Thread falls approximately once every three days somewhere in Kadanzer territory. As of 2857, 'Falls now last about five hours, and occur at various times of the day or night, including sometimes just after midnight or just before dawn. Thread also, of course, has no respect for such man-made conventions as restdays. Another natural event that has no respect for convenience is Hatchings, and these also sometimes occur on Threadfall days, which makes for hectic activity at the Weyr! Mating Flights, on the other hand, never occur on Threadfall days because the instinct to fight overrides a female dragon's instinct to mate.

The chart below indicates where and when Thread will fall during 2857 (Real Time 2002). It also indicates which Flight is scheduled to meet 'Fall. Gold mating flights, clutch dates, Hatching days, and other important events are also indicated on this calendar.

Please use this chart to schedule Threadfall events in stories for the Weyr.