You don't have it too? That's pretty surprising.
Here is a track. All I do is leave the controls centered, throttle up, and let her go. First she tracks straight, but after 60 knots or so she yaws left, and the yaw accelerates until we go BOOM.:doh:
This is with the latest NTTR released today, DCS 2.0.3.55945.98 Update 1. mirage yaw.zip