From: jfindley@cinci.nospam.rr.com   
      
   In article <11dc836c-7833-4c2b-aed6-8730a844a2aeo@googlegroups.com>,   
   kozelsm@yahoo.com says...   
   >   
   > On Wednesday, September 16, 2020 at 5:12:09 PM UTC-4, Jeff Findley wrote:   
   > > In article ,   
   > > kozelsm@yahoo.com says...   
   > > >   
   > > > They would need to have another airship nearby and a way to quickly move   
   all   
   > > > the people to that airship.   
   > >   
   > > That's a possibility, but not what I was thinking.   
   > >   
   > > > Or have a rocket with enough passenger capacity to go to orbit.   
   > >   
   > > This is what I was thinking.  Since the crew likely doesn't want to say   
   > > in the atmosphere of Venus forever, they presumably already have a   
   > > launch vehicle which will get them from the airship back to Venus orbit.   
   > > That would double as an escape vehicle.   
   >   
   > It would depend on the crew size. If it was 5 or 6 people they could have   
   such   
   > a vehicle on hand.   
   >   
   > If the crew was 25 or 30 or 50 or more that was built up over time, that   
   might   
   > take 5 or 10 separate trips to evacuate all of them.  They might not have   
   > enough time to evacuate all.   
      
   You'd certainly want enough vehicles on hand to get all the crew out at   
   the same time.  For example, ISS always has enough vehicles docked that   
   the entire crew can evacuate, if need be.   
      
   As for crew size, I really can't imagine a Venus expedition with more   
   than 5 or 6 people happening in the next several decades.   
      
   First we'd want to test uncrewed atmospheric vehicles.  Then we'd slowly   
   work our way up to something big enough to support a crew.  That's going   
   to take time, especially when you consider how long it takes to get to   
   Venus and back.   
      
   All my opinion, of course.  If the likes of Starship works out, that   
   changes the lift capacity equation dramatically.  With costs dropping   
   and payload size increasing, that would be a boon to any Venus   
   exploration initiative.   
      
   Jeff   
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