This document is a report accompanying the deliverable 2.1 of the FLOATECH project, funded under the European Union’s Horizon 2020 research and innovation programme under grant agreement No 101007142. For the detailed validation and verification of the capabilities of QBlade Ocean (QB) in work package 2, a detailed definition of the models is needed. This document presents the three aero-hydro-elastic models that will be used for this validation. These include two models for experimental validation: the upscaled 10 MW SOFTWIND experimental turbine mounted on a spar floater and the upscaled 5 MW OC5 experimental turbine mounted on a semisubmersible floater. The third model – the DTU 10MW Reference Wind Turbine mounted on the Hexafloat floater – is used for numerical validation against the established commercial code DeepLines Wind™. This document includes the definition of each of the three models and the results of the preliminary tests performed to validate the model behaviour. A link to the database is provided where the full QBlade Ocean model definition will be available.