[AtlasBarfed]

Carbon neutral biofuel or fuel made via excess solar/wind should probably be the goal.

Fuel cells might be viable too and the regulated commercial nature of planes probably means that hydrogen's storage and pumping headaches wouldn't suffer the consumer problems.

But biofuels are probably the way to go for now.

There are probably hybrid airship designs with solar panels that could do lower cost shipping. All that extra surface area from the blimp can be covered in solar panels or those fancy solar paints.

[AtlasBarfed]

https://www.varialift.com/page/specification-arh-50

200mph at altitude... well, with the jetstream it seems.

Also, could electromag catapults help with takeoff?

[AtlasBarfed]

Oh, and another thing, while long haul flights won't be impacted, self-driving cars and trucks will obliterate overland short hop flights, and for trucking probably medium range (1000miles) as well. 12 hours of driving 7pm to 7am overnight at 50mph average is 600 miles, and at 70mph with some convergent infrastructure would be 840 miles.