At Hamilton Field the air echelon received 61 new B-24H Liberator bombers over a period of several weeks. Traveling individually between December and February, the aircraft flew to Italy using the South Atlantic Ferry Route, established by Pan American Airways in the 1930s: Palm Beach, Florida; Puerto Rico; Trinidad; Belém and Natal, Brazil; Dakar, French West Africa; Marrakech and Casablanca, French Morocco; Oran, Algeria; and Tunis, Tunisia, where it waited while construction was completed on its airfield. On 30 January 1944, at Dakar, one of the 456th's aircraft exploded while taking off, killing nine of the ten crew members.