Which has a couple very simple assumptions and primary laws of physics, it may be shown that the relationship among rotational frequency of the rotor blade (file) as well as the mass (m) of your helicopter is: file 2 = mg/(8p3rl2 R4 ) in which r will be the air http://codytsrpk.post-blogs.com/7396957/indicators-on-composite-cladding-tannum-sands-you-should-know