Airship siluetti 8 months 2 Airship Diagram siluetti 8 months 2 Hot air balloon siluetti almost 4 years 8 Hindenburg airship siluetti almost 4 years 20 Ilmalaiva siluetti over 5 years 95 Ilmalaiva siluetti over 5 years 22 Zeppeliini siluetti over 5 years 66