[sn9]

Or you could just have a Terraform fuel plant synthesizing fuel colocated with every landing site.

[perilunar]

The fuel plant doesn't have to be colocated with the pickup/delivery sites — you can do a fuel stop en-route if needed.

[calmbonsai]

Is that you Casey? If so, though we disagree on the future of Airships, I love what Terraform is doing.