> and I presume it could go longer with an extra gas tank There are limits to that. If you carry an extra gas tank, then you're lifting even more mass- fuel is

> and I presume it could go longer with an extra gas tank There are limits to that. If you carry an extra gas tank, then you're lifting even more mass- fuel is heavy! There are significant diminishing returns on carrying more fuel. That said, you do make some great points- I could well be wrong. I suspect the FBI are over there asking a lot of questions too, lol.