How thirty Short Seafords translate into squadrons

How many Coastal Command squadrons were intended to operate the planned thirty Short Seaford flying boats?

Two squadrons of twelve aircraft, with the remaining six allocated to training and maintenance flights.

An order of thirty Short Seafords would support two squadrons of twelve aircraft. That leaves six airframes beyond the squadron allocation. A training flight and maintenance flight account for the remainder in this calculation. The production total therefore includes aircraft supporting the squadrons as well as those assigned to them.