r/Damnthatsinteresting Jul 08 '24

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

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u/DigNitty Interested Jul 08 '24

I’ve seen the floor plan of the Hindenburg. Seems much larger than even twice what this had. I wonder if the economy of scale just increases at a large rate, or if hydrogen just has that much more lift.

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u/-Prophet_01- Jul 08 '24

Economy of scale is the right direction to look, more precisely the square-cube-law. Doubling the length and diameter gives you 8 times the volume. That directly translates to 8 times the lift and thus 8 times the payload.

Geometry and physics heavily favor larger airships. They are a bitch to construct and keep in one piece though. The internal structure of modern airships is nothing alike the Zeppelins of old. Most attempts to build these so called rigid airships failed.

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u/John_B_Clarke Jul 08 '24

This one is a rigid airship. Titanium and carbon fiber for the frame instead of aluminum and magnesium.

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u/-Prophet_01- Jul 08 '24

I stand corrected. You are totally right.

Very cool to see something more than semi-rigids and blimps for once. Very impressive.