"..the instructor said the 5 bladed rotor is not going anywhere near the new 145 because it took more power without any real benifit in lift."
With all due respect to your Sim-instructor, that IS a load of bullcrap..
If the 5-bladed rotor has any problem, it is 'being shot down for political reasons'..
But that rotor won't die, it will just reincarnate in a stronger, more viable form
