"There's nothing like being fixed up for all emergencies, sir," laughed John.  "As you notice, we have everything for night-flying as well as day-flying.  With such a machine as this there is no reason why a crew of four or five could not run nights as well as days, two operating while the others sleep in the hammocks.  Cold foods can be cooked or warmed up on the gas-stove when needed, and the enclosed cabin protects all hands from the worst effects of bad storms."