Anonymous ID: 103511 Jan. 6, 2020, 2:21 p.m. No.7734566   🗄️.is 🔗kun

>>7734547

 

The secret of the jet engine is in your face too. How many times do you hear "we are running on fumes up here" in the movies?

 

They are. Those engines are 100x times more efficient than they let on.