Quote:
Originally Posted by teamzipper
Much of the time spent on the roll out at the top of the half loop includes errors and misconceptions, in addition to the comment made by another commenter regarding the need to immediately push to -1G prior to the roll; also wrong and dangerous.
|
That comment was mine, inserted by Gene from another forum. Just like aileron rolls, there are several different ways to do the half roll on top of an Immelman. You can do it entirely positive G, zero G, or from -1/+1G. I did not imply that one
needed to push to -1G to do a recreational Immelman. It was simply one of the three ways described for doing the roll.
In aerobatic competition, an Immelman is done by doing a round half loop to inverted, then rolling the airplane immediately upon reaching the apex of the loop with no flight path deviations during the roll. Technically, to do ANY half roll on a level line with no flight path deviations requires an exact transition between -1G/+1G or vice versa...even if the negative G only lasts an instant. Physics requires this unless you did an imperfect figure.
But for RV funning around acro, this technique is not required, nor was there any implication that it WAS required. That being said, maybe you could explain your comment regarding a competition style Immelman technique being "wrong and dangerous".