I'm not looking to turn this in to a long drawn out thing, but I have no problem explaining the thought process. What was being reviewed was the 30-day expiration on the Crew Passes, not the definition of charter vs scheduled itself. That stayed as shown below. No choices are being removed in that all flights can still be flown, it's just a change in how they are classified (crew pass vs scheduled).
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WHAT IS A SCHEDULED FLIGHT?
Any flight in which occurs (or did occur) in the real world for a real world airline, including:
Passenger or Cargo flight as part of the airlines current regular schedule.
Any flight derived from the Scheduled FlightKiosk.
"Classic" Flights -
CLASSIC FLIGHTS ARE DEFINED AS: A flight that has occurred in the real world for either (a) An airline that no longer operates and/or (b) An aircraft that has been officially "retired" from service by all airlines. A classic flight does not necessarily need to be ???old???, but must meet at least the requirements within (a) or (b) above..
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I do alot of research on the airlines we have listed in the DB, and in the case of Western Global, from their website itself, they state they are an "ACMI (wet leasing) & Charter Operator". Beyond that, I've gone through the last month or so of history for their entire fleet and found few signs of repetition. If any routes were flown more than once, it was done at different days or times (ie. no signs of a predictable schedule). From these facts, I feel very comfortable that this is a charter airline and should be entered as crew passes. If they do start flying reliably and predictably for the same customer, then those flights could probably be considered scheduled and in the DB for the length of the contract (either as WGN or under the customer's ICAO), getting deleted when they cease being flown.
As far as the other airlines you mention (ABX, ATI etal), they have predictable schedules that can easily be documented. For example, ABX3112 has flown from PHX to ABE every day for well over a month. If it stops doing that, the flight will be removed as it is no longer current. In a similar manner, TCX1854 has operated from MAN to ALC every Thursday & Sunday for a significant amount of time. Flightradar won't show that as the flights do operate under different numbers for dispatch purposes, but the flight number visible to passengers (and used by us) has stayed the same. Again, If this stops, they would be removed from the DB.
The short version is that to be a scheduled flight, it needs to be a repetitive, predictable flight that is currently operating. Does the Database reflect that 100%, absolutely not, but that is the target, and the schedule for an airline in our DB will have met that criteria as of the time of the last update. When the next update occurs, flights in operation at that time will remain/be added, and ones that are no longer in operation will be removed.