• remotelove@lemmy.caEnglish
    4·
    3 months ago

    Seems like a missed opportunity to have the Zeppelin also filled with hydrogen. It’s lighter than helium and your balloon doubles as a fuel tank. If you are on a budget for weather protection, you could also cover it with a paste made from aluminum and iron oxide.

    • CrimeDad@lemmy.crimedad.workOPEnglish
      3·
      3 months ago

      Legoland just doesn’t want to run afoul of the FAA. It’s allowed in Europe, but hydrogen is still prohibited as a lifting gas for aircraft in North America, even though pressurized hydrogen is permitted for fuel.