C435 The Airship and the Internal Combustion Engine

Leonardo followed Lorenzo and Fraulos to the backyard of the mansion.

This airship was not huge, but rather small. It was almost sixty meters long, and the largest diameter in front of it was nearly ten meters. When it stopped in Lorenzo's yard, it gave people the feeling that...

His courtyard was quite big.

"I have a premonition, Leonardo. Airships will be the mainstream in this era