The requirement say 
@ 370 knots, but we can be quite sure that this
will be impossible with this aircraft. We do a trade study on the
weight with different turn rate requirements and hand it to the customer.
The plot in figure 3.1 shows
where 
evaluated for turn rates from 
file=ws_turn2.eps, width=8cm
Figure 3.1 W/S plotted to turn rate requirement