Sorry to revive this old thread again, but I have a new couple of questions:
1. In most fast helicopters it seems to me that the rotor disc area seems to be erring on the smaller size. Now I know Mr. Lappos mentioned that a bigger rotor will stall quicker since it turns slower - is this a factor on the retreating blade that limits top speed? What I'm getting at - does a fast helicopter HAVE to have a smaller rotor disc, or is it just so that they happen to be mounted on choppers with strong engines (S-76, A109, MD500 etc) that can really pull well?
2. A high wing loading on an airplane normally means that the ride will be smoother and the initial turn quicker (but sustained turns slower). Does the same apply to rotor discs and their loading? High disc loading = smoother ride?
Thank you. Your answers are always very good and informative.