Depends on what you mean by "powers".
Lift is generally provided by helium.
Then they need something to run the engines, which can be gasoline(petrol), diesel or something else.
If the airship is shrunk by an enemy, the volume of the gas inside the airship will reduce in proportion to the shrinkage of the airship. The gas molecules will be more compressed, leading to an increase in pressure within the airship.
no, not always. there's the choice of hydrogen or helium.
An airship, made up of a huge gas-filled balloon, and powered by propellers.
The Hindenburg airship was filled with hydrogen gas, specifically about 7 million cubic feet of hydrogen. This highly flammable gas was used as a lifting agent to help the airship float.
It was hydrogen. That's why it caught fire. Modern airships use helium.
The purpose of Helium gas in any airship, including modern airships, is to reduce the overall density and thus provide "lift."
Helium has replace hydrogen in airships
No, the Hindenburg airship was filled with hydrogen gas, not helium. The use of hydrogen was a factor in the Hindenburg disaster, as the highly flammable gas led to the airship catching fire and crashing in 1937.
It did for 28 seconds until a fatal gas explosion occured.
an Airship is an aircraft of the lighter-than-air type sustained in the air by gas an aeroplane in a mechanically propelled heavier-than-air flying machine
Cotton canvas, coated with nitrocellulose lacquer. The top side of the airship had metal in the lacquer to reflect heat away from the gas and keep the ship from flying too high.
The Hindenburg was a German passenger airship, specifically a large rigid airship classified as a zeppelin. It was designed and built by the Zeppelin Company and was notable for its use of hydrogen gas for lift. The Hindenburg became famous for its tragic accident in May 1937 when it caught fire while attempting to land in Lakehurst, New Jersey, resulting in the deaths of 36 people. This disaster marked the end of the airship era for passenger travel.