Throughout WW2, aircraft launched from aircraft carriers typically launched under their own power. Modern carriers use steam catapults, but in the earlier days of naval aviation, hydraulic catapults were used. To launch scout planes without disrupting deck operations, the U.S Navy used a catapult launch system that could launch aircraft directly from inside the hangar bay, pictured above. Although this system was built into early WW2 carriers, it was not used extensively.
1937, military biplanes fly between the towers of the Golden Gate Bridge
PARIS: RESTAURANT, 1890’s