As a complete training aid, I've grouped together 4 main aspects of Helicopter drills/skills for use both prior to and after Disasters... Enjoy... and please feed free to comment either here or on the respective YouTube Video. https://www.youtube.com/watch?v=Gvli11cspig
https://www.youtube.com/watch?v=z9hgRchbHEA
https://www.youtube.com/watch?v=9STr6NgZsD8
https://www.youtube.com/watch?v=x1bbvz1Zvyo