xkcd #3298: Aerospace Flowchart
Title text:
Someday, we will find the problem that goes with this solution.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3298/
Yeah, though to be fair a blimp is a type of airship.
However, the Zeppelin I flew on and the Goodyear Blimp are not blimps, they are derigibles.