The ONERA rockets were derived from the Berenice test vehicle.
| Tacite/Titus flights | ||||
| Flight | Date | Lab | Notes | Site |
| Titus A | 1966 Nov 12 | Aero | Eclipse | Chamical |
| Titus B | 1966 Nov 12 | Aero | Eclipse | Chamical |
| Tacite CEA | 1967 Nov 23 | CEA | X-ray astronomy | CERES |
| Tacite 002 | 1968 Oct 15 | CNES/ONERA | Cassiopee guidance test | CEM |