The report requested is already available in the public domain by searching under its title Numerical Modelling of Wind Turbine Blade Throw it can be found at:
The report includes some minor redactions, which appear to be as a result of a previous Environmental Information (EIR) request. ONR has not commissioned any further work since this report and is not in a position to assess its current validity. However, numerous assessments of blade throw trajectories have been made, which can be found by literature search. ONR would expect the risk associated with any particular wind turbine development to be assessed by the developers concerned and submitted to the relevant local planning authorities for consideration.