....and yet it works so well.
Perhaps Anto, you should spend more time studying the TR of a Jetranger or a Gazelle? I'm no Robbie die hard, but nor a knocker, they serve their purpose in life. As a study Anto, it'll be good to look at the advances made to the R44 TR and then perhaps the R66 to see any improvements and why? Or just ask here for help on your thesis.
Cheers, FP.