"Emilio" wrote in message ...
Is it correct to say that maximum sustained turn rate of an aircraft is
equivalent to steepest bank angle aircraft can sustain in a turn?

Emilio

The simple answer is this: yes, the maximum sustained "level" turn
rate is equivalent to steepest bank angle aircraft can sustain in a
"level" turn under given conditions of airspeed and altitude. Although
this may not have tactical significance, this level turn performance
has historically been a contract requirement for fighter aircraft. It
is also the flight test that defines the zero specific excess power
(Ps) condition.

Jim Thomas