Vs New= Vs Old multiplied by the square root of the load factor
Load Factor = 1 divided by the cosine of the angle of bank.
eg: cosine of 60 degrees equals .5
1 divided by .5 = 1.41
That's where we get an increase in stall speed of 41 percent in a 60 degree steep turn.
The typical stall identification system of a turbojet aircraft triggers at 1.07 vs.
V2 must guarantee 1.2 Vs and 1.1 of VMCa as part of SFAR 25 certification.
The bottom line is that if you held V2 or better, you would be guaranteed stall protection for any manouvering at a rate one turn.