What is aircraft tail assignment?
Aircraft tail assignment means assigning a specific registered aircraft—not just a fleet type—to each flight or activity. The resulting sequence determines where the aircraft goes, when it is available, and whether it can complete its next task.
Each aircraft must start its next activity where the previous one ended. The schedule must also account for differences in availability and service periods, rather than treating every aircraft in a fleet as identical.
Constraints that shape a feasible rotation
Turnaround time
A connection must leave enough time between arrival and the next activity. Minimum turnaround rules prevent sequences that look connected in data but cannot be operated on the ground.
Station continuity
An aircraft must begin its next activity where the previous one ended. Continuity rules keep the rotation connected across the planning period.
Compatibility and availability
Fleet and aircraft compatibility determine whether a tail can perform a particular activity. Availability windows and service periods determine whether it can do so at the required time.
Multi-leg integrity
Some linked activities must stay together as one operating unit. Keeping them grouped prevents broken sequences.
An assignment can work for the next flight but cause problems later. Optimization checks its effect on the rest of the aircraft’s rotation.
Move beyond valid or invalid
Airline rules are not always just allowed or forbidden. A match may be allowed but undesirable, or preferred because it supports a planning policy. OptCo’s rules matrix includes these differences in the assignment process.
Preferred, non-preferred, and forbidden matches guide the search toward rotations that fit the operation, not just ones that pass a technical check.
Evaluate tail assignments through scenarios
There may be several workable tail plans. OptCo compares their costs by aircraft and by leg, making it easier to see how they differ and why one performs better.
Planners can see what happens when a rule, availability window, or priority changes, instead of accepting the first workable schedule as the final answer.