The balloons Duchairn was reminiscing about had an aeronaught aboard, but ran out of fuel too quickly to be useful, just like the early Montgolfier balloons, etc.
L
evilauthor wrote:*quote="Bluesqueak"*[quote="evilauthor"]
But still, this is the kind of innovation that he had to have planned from the very beginning. So he SHOULD have included mention of hot air balloons even in passing in one of the earlier books. Possibly even in the very FIRST book.*quote*
Actually, Haraald mentions in the first book that it would be wonderful to see someone fly. In Book 3, Cayleb is described as the first Safeholdian to fly in well over eight centuries. So it seems that either RFC planned them as a new invention - and then realised that wouldn't fly (I'll get me coat) or they're a late idea that needed a bit of retrospective continuity adding.
The alternative is that they weren't mentioned because Merlin didn't know Safehold had balloons.
From the way the characters talk, while hot air balloons are known, hot air balloons big enough to lift a human being hasn't been done before.
You'll note that the Church side kept thinking that Charis' balloons should be impossible because "there's no smoke" to indicate a heat source. Which means they're thinking wood or coal fires are the only sources of hot air for balloons since they don't know about Charis' use of natural gas.
So how big an open wood or coal fire do you think would be necessary to lift a balloon big enough to carry a man into the air? I'm thinking big enough that a balloon couldn't possibly carry one and still have room or weight left for the man.
And if I'm wrong and such things have been done in real life (which it may very well have), SAFEHOLD might never have done such a thing before given how the Inquisition discourages innovation for most of its history.[/quote]