Blanche wrote

Hm....30 bank is new info to me. I always thought it was
a 4 minute turn for the big & fast guys.

Standard Rate is Standard Rate for all aircraft. Three degrees
per second. However, when flying under Instrument Flight Rules
(IFR), and a standard rate turn is specified, aircraft with a
Flight Director/Autopilot installed are permitted to use the
maximum rate of turn commanded by the FD/AP which in the case of
the Boeing a/c that I flew, was about 25 degrees angle of bank
with the flaps up and 30 degrees angle of bank with the flaps
down. During the commencement of an Emergency Descent, the flight
manual called for a bank angle of 45 degrees to aid in getting the
nose down and eliminating negative "g"s.

Bob Moore
ATP B-707 B-727