Like a bird

See the Bar-tailed Godwit?

Designer William Brown has come up with a concept for a hydrogen-fueled airliner inspired by a bird, the bar-tailed godwit.

From Inhabitat:

The Lockheed Stratoliner is a hydrogen jet that uses oversized wings to create extra lift for extended high-altitude flights. The design was inspired by the Bar-tailed Godwit, an Australian bird that holds the record for the longest nonstop flight (7,258 miles from Alaska to Australia without feeding!). Like the Godwit, the Stratoliner can go anywhere in the world without refueling.