USS Los Angeles retired 1932, dismantled 1940 Graf Zepplin 1928. 1929 circumnavigated globe 21 days. regular transatlanic service through 1936. 1936 Hindinburg put on transatlantic route. USS Macon and USS Akron. largest helium filled zepplins ever. M: June 23, 1933. carries 5 F9C Sparrowhawk biplanes. Ceiling 3000ft. Though went to 6000 and suffered damage. Crashed Feb 12 1935 due to this damage. Deiopea (wife of Aeolus)