[avmich]

> Do the hydrogen airliner boosters take all that into account?

Sure, and other things too, like combustion benefits and hazards. But regarding your money worries - they don't need to happen overnight, just like electric cars don't replace gasoline ones suddenly.

Hydrogen fundamentally more potent fuel than kerosene - both by energy density and heat characteristics. Like with other commercial technologies, to be accepted it has to change traditions somewhat, which isn't easy. Safety is another important matter - it remains to be seen if hydrogen can be safely brought onboard to regular commercial liners, though advancements demonstrated by Toyota Mirai remind that progress doesn't stand still.

[woodandsteel]

It may well be that hydrogen is the fuel of the future for airlines. The problem is that with the rate global climate change is happening, we can't wait decades for a solution. We need something as soon as possible, and as far as I can tell, synfuel kerosene could replace fossil fuel kerosene decades sooner than hydrogen could. Do the hydrogen boosters address this concern?