>>1525531it's called money. Helicopters consume an enormous amount of fuel. Airships require huge amounts of gas and storage space. Both very maintenance intensive. You think the people on Hindenburg were proles like you and me?
I was curious to look it up. According to Smithsonian Mag the ticket from Frankfurt to New York cost $450. In today's money that's $8300. The average income then was $1350, although that was during the Great Depression. A ticket on the air ships was not just for the rich, like short range helicopter flights today that cost a few hundred bucks. It was for people who would buy a single ticket for the price of a car. that was almost enough to get a Ford 74.