Would you believe 1910?
The Airship "America" of 1910: The First Attempt to Fly the Atlantic | Airships.net
... and the crew included lucky kitty mascot, Kiddo.
WWII American ZSG-4 airship manual:
https://u.pcloud.link/publink/show?code=XZuNcBVZx0UTI9uAlTfxnjuMHgBVy7DhYhUX
ZSG-4 airship Standard aircraft characteristics:
https://u.pcloud.link/publink/show?code=XZWNcBVZREjLhfP986b3wB4zuCa3pF9GEaM7
ZSG-4 CAPABLE 550HP ENGINE MANUAL:
Public released T74...