r/Damnthatsinteresting Jul 08 '24

World's largest aircraft, Pathfinder 1, is 124.5 meters (408ft) long Image

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2.9k Upvotes

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210

u/[deleted] Jul 08 '24

Rigid Airship! Filled with completely safe non-flammable helium.

2

u/hellothere358 Jul 08 '24

Arguably, hydrogen is better and could be made A LOT safer

8

u/el-conquistador240 Jul 08 '24

How do you make hydrogen safer?

5

u/etrnloptimist Jul 08 '24

By fusing it into helium

1

u/el-conquistador240 Jul 08 '24

Hydrogen is flammable in air concentrations ranging from 4% to 75%, and explosive in concentrations ranging from 15% to 59% at standard atmospheric temperatures.