PBA had at least six YS
-11's, although the 1985 Airline Handbook says that they have six plus were selling three additional ones. That of course means nine total, but I don't recall it being that many.
PBA, especially in some of their tourist markets, was very much the type of airline that would roll out to suit the load. The 5:00pm from Boston to Hyannis might have bee scheduled as a Martin 404, but some lighter days they'd just roll out a DC3 or even a Cessna 402, and other heavy days they might have rolled out a DC3 or even a second 404 in addition to the scheduled 404. For this reason, and the fact that they probably had a lot of regular mx work on the old airframes, I think PBA always had a lot more aircraft that their scheduled line of flying would indicate. So they may have had more YS
-11's that one might think seeing the schedule.
Later in their life I think this type of swap-as-you-go flying was far less, and probably never happened in their less-seasonal Florida markets like Pensacola-Tallahassee-Jacksonville. But it was a regular seasonal feature in New England and probably also happened in markets like Naples and Key West.
As for YS
-11 markets, the OAGs I have from the period show YS
-11's linking Miami to Key West, Fort Myers and Sarasota in early spring of 1983. In summer of 1983 I find the YS
-11's doing all the flying between LaGuardia and Nantucket, Marthas vineyard, Hyannis and New Bedford.
Those LaGuardia flights benefited from not only the capacity, but the speed o fthe YS
-11 as well. The Martin 404 was also sometimes used on those flights from the islands to NYC. It's only a 200 mile hop to Nantucket, but the Martin's scheduled time was very slow in comparison
By summer of 1986 the YS
-11s were gone and PBA flew 404's to LGA
. New York Air flew D9S, and so PBA was at a definite disadvantage time-wise.
If I find any other PBA YS
-11 routes I'll post them.
As a side note, the only YS
-11 operators in the United States I come up with are these:
Am I forgetting any others?