Originally Posted by
YVR Cockroach
If the Beech 99 is/was a piston-engine a/c, then that's the one and only time I've flown a piston-engined prop in scheduled service. ITH-BOS on Catskill Airways, late 1988.
as mentioned a couple times upthread, it’s a turboprop, with a pair of Pratt & Whitney (Canada) PT-6A engines
(
wikipedia page)
I was on a couple of USAir Express birds (iirc operated by Henson Aviation) BWI-DCA in the mid 1970s, and one on Cascade Airways MWH-SEA in 1980