Aviation hiring runs on batches, and a batch has a date
The funnel is front-loaded and unforgiving
An airline or ground handler does not ask for candidates over the coming months. They ask for a defined headcount at a named base, joining a training batch on a fixed date. Everything upstream is compressed into that window: campaign, registration, assessment day, screening rounds, selection, medical, verification and release. Miss the batch and the candidate does not become a later placement, they become someone else's.
The screening funnel in this industry is also unusually steep. A large share of registrations never attend, and a large share of those who attend do not clear the first round. That means the numbers a recruitment head must watch are ratios, not totals: registered to attended, attended to cleared, selected to joined. Without those three, a hiring cycle is judged only after it has finished.
The gap between selection and joining is the real leak
Most teams focus their energy on the assessment day, then relax once the selection list exists. But the weeks between selection and a batch date are when candidates take other offers, families intervene, and enthusiasm cools. Contact during that gap is the cheapest retention available, and it is almost always the thing nobody owns.