or lift of any inclination, horizontal and vertical elements being able, by combination, to produce lift in any direction., \ ; , There remains only the question whether the two parts of the drag are also equal if the elements are situated one behind the other—that is to say, in different… … linear longitudinal vortices in the inverse direction. The reader observes that the transverse vortices (2) and (3) neutralize each other; the longitudinal linear vortices, however, have the same sign, and all four vortiees fonn a pair of vortices running from infinity to infinity. The drag,…
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
