In article <airliners.1996.2834@ohare.Chicago.COM>
sasrbk@unx.sas.com (Bart Killam) writes:

>Back then, Piedmont flew many more F-27's then YS-11's. So on
>that basis, it is likely they were F-27's.

Not so. PI had 8 F-27, 10 FH-227 and 21 YS-11.

The F-27s were traded back to Fairchild in 1967, the FH-227s had all
been sold by August 1977, and the YS-11 last scheduled service was
on 14 March 1982.
(BTW, last PI Martin 404 scheduled service was 14 February 1970.)

Brian M