Would a flattened round balloon tend to orient vertically or horizontally, assuming neutral buoyancy? Does this shape provide a righting moment against pitch and roll?

By flattened, I do not mean “flat”. It is simply smaller in one axis than the others, by some arbitrary measure.

  • $\begingroup$ The heaviest point will be at the bottom. $\endgroup$ Sep 17, 2020 at 23:07
  • $\begingroup$ Assuming the material is as nearly uniform as possible and the balloon itself is radically symmetrical, what then? $\endgroup$
    – Vogon Poet
    Sep 18, 2020 at 0:02


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