  The needs to improve performances of artillery projectiles require accurate
aerodynamic investigation methods. The aerodynamic design of a projectile
usually starts from numerical analyses, mostly including semiempirical methods
and/or Computational Fluid Dynamics (CFD), up to experimental techniques
composed of wind-tunnel measurements or free-flight validations. In the frame,
the present paper proposes a dedicated measurement methodology able to
simultaneously determine the stability derivative C m$\alpha$ and the pitch
damping coefficient sum Cmq + Cm$\alpha$ in a wind tunnel by means of a single
and almost non-intrusive metrological setup called MiRo. This method is based
on the stereovision principle and a three-axis freely-rotating mechanical test
bench. In order to assess the reliability, repeatability and accuracy of this
technique, the MiRo wind tunnel measurements are compared to other sources like
aerodynamic balance measurements, alternative wind tunnel measurements, Ludwieg
tube measurements, free-flight measurements and CFD simulations.
