Editing Reusable launch vehicle (section)

====Landing using aerostatic force====
There is also the concept of a launch vehicle with an inflatable, reusable first stage. The shape of this structure will be supported by excess internal pressure (using light gases). It is assumed that the bulk density of the first stage (without propellant) is less than the bulk density of air. Upon returning from flight, such a first stage remains floating in the air (without touching the surface of the Earth). This will ensure that the first stage is retained for reuse. Increasing the size of the first stage increases aerodynamic losses. This results in a slight decrease in payload. This reduction in payload is compensated for by the reuse of the first stage.<ref>{{Citation |url = https://engrxiv.org/xbf8z/ |first1 = Valentyn |last1 = Pidvysotskyi |title = The Concept of an Inflatable Reusable Launch Vehicle |date = July 2021 |doi = 10.31224/osf.io/xbf8z |s2cid = 243032818 |access-date = 2021-08-18 |archive-date = 2021-08-18 |archive-url = https://web.archive.org/web/20210818223109/https://engrxiv.org/xbf8z/ |url-status = live }}</ref>