Jet fuel is 840kg/m^3 so 70,000kg is ~146m^3 which is a cube roughly 5.2m/side. I personally would not consider that a "enormous" amount of fuel to move 400+ p

Jet fuel is 840kg/m^3 so 70,000kg is ~146m^3 which is a cube roughly 5.2m/side. I personally would not consider that a "enormous" amount of fuel to move 400+ people 5,500km.