Montaño

I think the VAB value is, actually, the product of drag coefficient and reference area.

Mmm. To be honest, it is not speed but range what really improves with altitude.

Maybe you can have more lift, even more aerodynamic efficiency, but definitely you will be slower than flying high. As density goes down with altitude, you can increase your speed keeping the drag constant. That means with the same required thrust. Although your available thrust decreases with altitude, the point where both (required and available) match is usually far from ground (for turbofan engines).

Thank you ferram, that was exactly what I was asking!

Mmmm, probably I explained the question very bad... Or maybe I have in fact no idea. I think that the AoA is the angle between velocity vector and the x vector of the coordinate system of the body. It should be so. When a capsule or the command pod re-enters in the atmosphere, it usually point to the retrograde direction (more or less) making a 180º angle with the velocity vector: So my question was: can FAR give me the drag coefficient value for a 180º angle? Because I really belives the drag coefficient is not the same for 0º and 180º. I mean, it should not be the same! Or maybe the AoA definition is not as I though... I don't know. Anyway, my question was also if it is possible to have the tabulated graphs. You know, to do the math.

Hi, just one question. Is it possible to obtain the tabulated values of the polar graphs? It would be quite useful to make more in deep analysis. In fact, there is any way to expand the graphs to the interval [90,-90]? I mean: I think that it could be useful to know the drag of a capsule in the re-entry... Thank you!