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Environment & Energy

OKIsItJustMe

(21,734 posts)

4. Apparently you didn’t read the OP

Reply to wtmusic (Reply #3)

Mon May 13, 2013, 10:21 AM

May 2013

http://www.nrl.navy.mil/media/news-releases/2013/nrl-shatters-endurance-record-for-small-electric-uav

…

Researchers at the U.S. Naval Research Laboratory flew their fuel cell powered Ion Tiger UAV for 48 hours and 1 minute on April 16-18 by using liquid hydrogen fuel …

… small, electric, battery-powered systems are limited to endurances of only several hours.

…

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NRL Shatters Endurance Record for Small (Fuel Cell-)Electric UAV [View all] OKIsItJustMe May 2013 OP

Awesome. Our noisy drones were allowing some suspected terrorists to escape destruction. wtmusic May 2013 #1

And, god knows, the technology isn’t useful for anything else. OKIsItJustMe May 2013 #2

Um, no. It's not more "practical". wtmusic May 2013 #3

Apparently you didn’t read the OP OKIsItJustMe May 2013 #4