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jan 1, 1957 - Pratt & Whitney's model 304 jet engine using liquid hydrogen as fuel tested for the first time as part of the Lockheed CL-400 Suntan project. The specifications for the U-2 a double axle liquid hydrogen semi-trailer were issued.

Added to timeline:

8 months ago
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Hydrogen Tech

Date:

jan 1, 1957
Now
~ 61 years ago
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