🚀 go-pugleaf

Well, they never really went away, as per Goodyear of Akron, Ohio; but the
larger, rigid-frame, airship suffered demise with crash of the Hindenberg.
  But that used hydrogen - not necessarily a problem, as Graf Zeppelin
showed, with its long history of successful flights.
  However, the blimp, or non-rigid (limp?) version, of airship, now has a
massive representative, with advent of - "Bullet 580" - a 76-metre whopper,
of somewhat snub-nose, snub-tail, design.
  Takes more that six hours to inflate; costs $8million, and can be used for
all sorts of purposes - including monitoring activities of pirates.
  How do you shoot down an airship?  Easy enough in the old days, if you
could get near enough to shoot an incendiary bullet.
   Nowadays, helium is used (a by-product of natural gas), so fire is not a
hazard.  However, deflation always is, unless the balloon is
compartmentalised inside its gaseous envelope.
   Why is the new blimp called Bullet 580?  It is a snub-nosed bullet, at
best, and, presumably has not had 579 predecessors.  "Blob 1" might be more
appropriate, if not trendy.
   Still, good luck with it, as any balloon-based aeronautical device is
energy-conservation friendly.