Creative Speculation

Seger,

You have already debunked yourself in this post.

You are starting to get it. But you are still blinded by your bias, looking for anyone to support your claims, even if it is some anonymous "engine guy" who admits he cannot comment on aircraft designs.

As you are starting to understand, Vd is not defined as a 'limit load' under 25,301, 303, and 305. Nor it is defined anywhere under Part 25 as a limit "case". Vd is a design speed. As I have repeatedly tried to explain to you over the past month, the margins of safety for speed are between Vmo (derived from Vc) and Vd. So, to put it in terms you might understand, there aren't three limit cases - Vmo, Vc, and Vd... - and then an Ultimate "case" thereafter. Vmo is the "limit case" and Vd is the "Ultimate case". and every VG Diagram on this planet reflects that, while VG diagrams also reflect the limit load and ultimate load as defined under FAR Part 25.301, 303, and 305.

There are three types of loads defined in 301, and regulated by 303, and 305.

Can you guess what they are?

I gave you a strong hint here.

Two are irrelevant to our discussion.

Once you actually read what I have recommended in my hint above, perhaps you will understand why you are wrong, and why I was approved by the FAA and get paid to teach this type information, and why this list is growing -- while you STILL cannot find not one verified Aero Engineer to support anything you have claimed with regard to Part 25 over the past month. Not even Beachy will throw you a bone on this matter.... because if he does, he knows it will be going in his archives... and that gets a helluva lot more views than any thread in this forum section.