Koken Long-Range Prototype Plane (航研機) PART II - Take 3

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Uploaded by on Oct 13, 2007

The Koken Long-Range Prototype Plane (Koken-ki) is the only aircraft made in Japan that has ever set a world record certified by the FAI (Federation Aeronautique Internationale). From May 13 through May 15 of 1938, it flew 11,651 km at a circuit course around Tokyo.

For further info about the legendary aircraft, please visit our Cyber Museum commemorating Mineo Yamamoto, my late father and one of the key members of the Koken Project:

http://www.yamafami.com/cm/

This series of videos consists of 3 parts.

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  • It would have been difficult to see from either of the cockpits. Periscopes perhaps?

    At the time a radio would have weighed 50-pounds. A generator to power it would have consumed 10-20 gallons of fuel and that generator would have weighed 10-pounds and the battery another 10.

    That means they didn't take a radio and didn't have lights. To light the cockpit instruments they would have used candles.

    To save weight they may have gone without food, taking only five or six gallons of water.

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