Originally Posted by Roper92

There are 4 main points to look at when trying to look and estimate an upgrade.
-Retirements (Not a lot at regionals..)
-Aircraft Orders/Deliveries (More planes, more pilots)
-Attrition (Pilots making stupid lateral moves, going to majors, or corporate)
-Recent hires/upgrade rate

For example, I hear RAH has an 18 month upgrade currently. My friend just finished training and told me that they hired 1,000 pilots in 2007 and are still upgrading 2006 hires. The upgrade rate would have to be quite a bit to sustain that.