navy blimp

K-class airship K-69 of Airship Patrol Squadron ZP-1 lifts off the flight deck of escort carrier USS Mindoro, Apr 28, 1950. 

The K-class blimp was a class of blimps (non-rigid airship) built by the Goodyear Aircraft Company of Akron, Ohio for the United States Navy. These blimps were powered by two Pratt & Whitney Wasp nine-cylinder radial air-cooled engines, each mounted on twin-strut outriggers, one per side of the control car that hung under the envelope.

Some airships were armed with an M2 Browning and even Depth Charges, the K-Class was used until 1959, however the USN continues to use Blimps today.

USS Los Angeles (ZR-3), a US Navy blimp, flies over ships of the U.S. Fleet, circa 1930. Photographed from on board the airship, with two of her engine cars in the foreground. Ships below are USS Patoka (AO-9), closest to the camera, and the aircraft carriers Lexington (CV-2) and Saratoga (CV-3).