The different RSU models

The Euclid VIS shutter unit (RSU) is not directly built as a flight unit, but a number of preliminarily models are constructed in advance in order to progressively test the robustness and the maturity of the design.
According to the standard practices for the construction of flight hardware and the specific requirements of the Euclid VIS instrument, the following RSU models are being built:
  • The Engineering Model (EM)
  • The Thermal and Structural Model (STM)
  • The Bread-Board Model (BM)
  • The Qualification Model (QM)
  • The Flight Model (FM)
  • The Flight Spare (FS).

The FM and FS: many parts already manufactured

The FM and FS models are being manufactured, and we show below a few photos of the already available parts at APCO's premises. The parts are bagged for cleaninless issues.

Different parts of the FM and FS model already available at APCO Technologies (credits: APCO Technologies).