![Filling army airship with helium . Rare helium gas is now used in American Army and Navy airships . The photograph shows the army blimp ' TC-8 ' being ' re-heliumed ' Filling army airship with helium . Rare helium gas is now used in American Army and Navy airships . The photograph shows the army blimp ' TC-8 ' being ' re-heliumed '](https://c8.alamy.com/comp/2BWBXFY/filling-army-airship-with-helium-rare-helium-gas-is-now-used-in-american-army-and-navy-airships-the-photograph-shows-the-army-blimp-tc-8-being-re-heliumed-from-special-tank-cars-which-transported-the-gas-from-texas-to-scott-field-illinois-29-december-1926-2BWBXFY.jpg)
Filling army airship with helium . Rare helium gas is now used in American Army and Navy airships . The photograph shows the army blimp ' TC-8 ' being ' re-heliumed '
Air quality observations onboard commercial and targeted Zeppelin flights in Germany - a platform for high-resolution trace- gas
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