Changes

==Post World War II==

==Post World War II==

Since [[World War II]], airships have been suggested from time to time as a rational solution for a variety of transportation needs, and small airships - buoyed by [[helium]] rather than the inflammable [[hydrogen]] which was the lifting agent of most earlier craft - have been built and operated. Howeverm, there is as yet no realistic prospect of airships attaining again the prominence they held in the 1920s and 1930s.

Since [[World War II]], airships have been suggested from time to time as a rational solution for a variety of transportation needs, and small airships - buoyed by [[helium]] rather than the inflammable [[hydrogen]] which was the lifting agent of most earlier craft - have been built and operated. However, there is as yet no realistic prospect of airships attaining again the prominence they held in the 1920s and 1930s. At present (2017) the main use of airships is for advertising.<ref>[https://www.google.co.uk/search?q=airship+advertising&biw=1067&bih=411&tbm=isch&tbo=u&source=univ&sa=X&sqi=2&ved=0ahUKEwjg4sHKk7vSAhXFDMAKHfsKAhgQsAQIQA Airship advertising]</ref>

==References==

==References==