To achieve surprise, and to reach the Admiralty Islands in just five days, high speed transports (APDs) were required; Landing Ships, Tank (LSTs) were too slow to make the required distance in the time.
For at opnå taktisk overraskelse og nå frem til Admiralitetsøerne på bare fem dage var der brug for hurtige Transportskibe (APD), idet de normale landgangsskibe (LST) var for langsomme.