ZR-3, USS Los Angeles, was a zeppelin built in Germany for the United States Navy as part of a reparations payment. She was our longest-serving airship from 1924-1939. Her landing onboard the USS Saratoga on 28 January 1928 was a one-time event and as far as I know the only airship landing on a carrier. There possibly were others during the World War II years, but I haven't found any documented yet.
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