Calculate Atmospheric Delta-V?

[LexiSilva]

I know how to calculate vacuum Delta-V, but what is the equation to measure atmospheric Delta-V?

EDIT: Figured it out as soon as I posted it! You just use the atmospheric ISP, right?

[Spica]

Yes

(10char)

[K^2]

Depends on what you mean by delta-V. What you get from the rocket, yes, you just use I_SP for atmospheric operation. But then your rocket is also going to lose a lot of speed to drag, and that will depend on ascent profile. Either way, however, your total delta will be smaller due to drag.