The Story of Charlie Seibel's Cessna Helicopter
This is an interesting description and history of the Cessna Helicopter. I do not think it is copyrighted so I am putting it here for public view. (If anyone knows differently please inform me.) I believe this movie was produced by Seibel himself to show others what he had accomplished. It is in the spirit of a tribute to this fine aircraft designer that I display it here for any and all to see. There is also an excellent article regarding the helicopter that you can see here.