Lu, I read your post on Just Helicopters on 14th August, asking pilots what they were taught in relation to blade movement and gyroscopic precession. With regard to the responses you received you stated that "...although they were differing all were taught that the blades move due to gyroscopic precession." There were only 5, (mostly confused and confusing) responses, and only one actually said that he was taught as you stated. He then went on to say that he now realises that this was wrong. You appear to have interpreted the responses to suit your argument.