Aircraft
Boeing hi-tech research has many irons in the fire
Hummingbirds are incredibly aerobatic, can hover, fly backward and can even hover and fly upside down.

Hummingbirds are incredibly aerobatic, can hover, fly backward and can even hover and fly upside down. But the most amazing thing about hummingbirds is their endurance–these tiny birds, weighing little more than five grams, fly for 20 hours as they migrate across the Gulf of Mexico.

Endurance is a key requirement of many of the technology projects under way at aerospace giant Boeing, not least its own Hummingbird, otherwise known as the A160. Boeing’s new Hummingbird is the A160T, the previous reciprocating powerplant of this innovative unmanned rotorcraft having been replaced by a Pratt & Whitney turbine engine. This, according to president of advanced systems at Boeing Integrated Defense Systems (IDS), George Muellner, because his (mostly military) customers have a penchant for heavy fuel.