Thanks Kevin, useful information.
A bit more detail:
Akron and Macon were designed as airborne aircraft carriers, which could launch and recover heavier-than-air planes for use in both reconnaissance and self-defence.
The ships were equipped with hangars, approximately 75′ long x 60′ wide x 16′ high, which could stow and service up to five aircraft in flight. Aircraft were launched and retrieved by means of a trapeze, and could enter and exit the hangar though a large T-shaped opening at the bottom of the hull.
The capacity to embark and deploy fixed-wing aircraft was the essential element of Akron and Macon’s ability to serve as naval scouts. Airplanes greatly increased the range and area over which the airship could search for the enemy, but also addressed the airship’s own inherent weakness; its vulnerability to attack. The giant airships made large, slow targets which were highly vulnerable to destruction by an enemy’s planes.
Although the Navy originally envisioned the airships as scouting vessels which carried airplanes for fighter defence, over time the Navy eventually realized that the vulnerable airship itself was best employed in the background, out of sight of the enemy; the airship’s function would be to carry scouting planes within range of the enemy. As naval airship doctrine eventually developed, rather than the airplane extending the scouting range of the airship, it was the airship which extended the scouting range of the airplane.