CAA downwash report CAP 3075

CAP3075 Protecting the Future: Trials and Simulation of Downwash and Outwash for Helicopters and Powered Lift Aircraft presents the results of research carried out by the Flight Operations department of the UK Civil Aviation Authority to expand knowledge of downwash and outwash at helicopter operating sites. 

CAP3075 also provides initial verification and validation of downwash simulations for eVTOL aircraft, called for in CAP2576.