Questions tagged [airship]

An airship, or dirigible, is a lighter-than-air powered craft typically using helium, or historically hydrogen, as the lifting gas.

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How do blimps control altitude?

If you have an airship filled with helium, how can you adjust your altitude? i.e. how do you "go up" or "go down"? Even staying still would be a challenge: The way I see it, you'll never have ...
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9answers
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Why are airships not more popular?

There is this question but I am hoping for more general answers to why airships are not more commonplace. The previous question does bring up the cost of production (mainly because of hi-tech fibers ...
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5answers
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Could I build an airship (rigid dirigible) that used a vacuum rather than lifting gas?

There are other questions (c.f. What gas is used in airships to give them buoyancy?) that discuss the use of lifting gasses such as Helium and Hydrogen in airships. Helium is rare and Hydrogen is ...
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2answers
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What materials are used for the gas bags in hydrogen airships?

I heard that to construct a hydrogen blimp or airship, the gas bag must be coated with aluminium, which got me confused: doesn't it add significantly to the weight? Is aluminium really used, and is ...
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2answers
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Longitudinal stability of airships: How is the critical speed defined?

Airships are unstable in pitch above a certain speed, called the critical speed. What causes the instability, how does it manifest itself for the pilot, and how is the critical speed defined and ...
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4answers
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What are pro/cons of steam as lifting gas for airships?

I was reading Wikipedia page about hot air airship and another Wikipedia page about the first powered and steerable airship which was powered by a steam engine. So I ask myself "why didn't they ...
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2answers
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How exactly can an airship lose lift?

On this wiki page (under 'Comparison with heavier-than-air aircraft'), the altitude record of the L-55 Airship states: The ultimate altitude record for a rigid airship was set in 1917 by the L-55 ...
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2answers
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How would we calculate the load factor on an aerial vehicle while landing due to sudden gust loads?

In order to design the landing gear (wheels and suspension) of our model Airship, [say "m" kg -expected mass], I wanted to know, is there any way to calculate the loads which might be experienced by ...
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1answer
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How fixed air, gas and fixed weights in rigid airships is computed in this book?

I hope I am posting this in the right forum. My current problem is part aviation, part maths. I have been struggling with the following computation ( Burgess, Charles Paine. Airship Design. Honolulu, ...
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1answer
792 views

What gas is used in airships to give them buoyancy?

In the 1930s Zeppelins used hydrogen as the lighter-than-air gas to fill the envelope and give the ship buoyancy. What kind of gas is used today? Is it still as flammable as the Hydrogen from ...
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Can balloons be stacked in a climable daisy chain to the edge of space? [closed]

How high can a balloon/s be and still be tethered to the ground? The most common problem was finding the calmest place on Earth. The longest balloon chain is 20 km Pictures below are basic ...