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Photos: One ultralight, 160 AA batteries

Tech students in Japan load a lightweight aircraft with one pilot and lots and lots of batteries.
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1 of 3 Bill Detwiler/ZDNet

Tokyo students set up ultralight

There's hardly a gadget in the world today that doesn't require AA batteries--but 160 of them? That's how many it takes to power this ultralight being set up for launch by students of the Tokyo Institute of Technology on Saturday.

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2 of 3 Bill Detwiler/ZDNet

Checking the power levels

Here, a student checks the power levels of the Panasonic Oxyride batteries before Saturday's test flight. The aircraft's length is a little more than 30 feet, and it has a wingspan of about 100 feet. The material used to construct the plane included carbon fiber and Styrofoam.

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3 of 3 Bill Detwiler/ZDNet

A test flight

In the test flight, at the Fuji River glider port in Kambara, Japan, the manned ultralight traveled all of a couple hundred meters.

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