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HolidayBuyer's Guide

Personal helicoptors

Tandem rotors

Foldable helicoptor

Folded helicoptor

Research expeditions

Innovations in personal transportation beyond the car often seem like the stuff of science fiction. But one day we might all be parking foldable mini-helicopters like these in our garages.

German industrial designer Daniel Kocyba has created the Hummel (German for bumble bee), a light helicopter design concept for two passengers, with potential uses ranging from air taxi to emergency, police, or army transportation, he says.

Caption by / Photo by Daniel Kocyba
The back wing of the Hummel has two functions; while on the ground, it's a foot, and during flight, it provides stabilization.

According to Kocyba, the tandem rotor layout guarantees a more efficient aircraft performance than the standard helicopter tail rotor design, without wasting fuel.

Caption by / Photo by Daniel Kocyba
From flying machine to its compact, closed box, the helicopter folds in three steps.
Caption by / Photo by Daniel Kocyba
Folded, the Hummel can be easily stored without wasting space.
Caption by / Photo by Daniel Kocyba
The Hummel's small size and the fold-ability make it an ideal tool for use on expeditions and research ships, Kocyba says.
Caption by / Photo by Daniel Kocyba
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