we have been down that route before (Berp vs others). Nick and the 'S92 supporters' have one view of the BERP blade, others (including me) have a different one, neither will agree that the other is correct and both sides will try and prove their own point with some supposed data without any definite answers being arrived at, eventually it will probably descend into a tirade of abuse.
I am not bothering to rise to answer this as there are people here who hear but don't listen, but I will agree that you are entitled to believe whatever you wish if it's posted here (but remember it is a RUMOUR network and treat the statements here as such, everyone is biased to some degree and that is reflected in the posts here, including mine)
BTW the Aerodynamic theory of the blade is pretty well known and can be found across the web if you search.
DM
I am back early as it's raining here and the weekend got spoiled
