Helicopter Principles of Flight
 

Need to brush up on POF or want to read about dynamic roll over?
Found a good link at http://www.sarworld.com/featuresf/pilots/pilots.htm

Very good, I must remember that next time I fly an SH-60. No, seriously, I clicked on the link, chose one of the articles and up came a box asking for an ID and password. 'Great', I thought, 'members only', so I cancelled the box. And then it took me to the article I wanted. Managed to save it too, but it's read-only.

So yes it's a great site - just be aware of the security.