The first Beaufort unit formed in Australia, on 25 February 1942 was No. 100 Squadron RAAF, so named because it was formed partly from members of its RAF counterpart. In the light of the problems encountered by the first Beauforts based at Singapore, the unit was carefully trained and slowly brought up to operational status. Its first operational sorties were carried out on 25 June when a Japanese ship heading towards Lae, New Guinea was attacked by five Beauforts operating from Port Moresby, which resulted in three Beauforts hitting the ship with bombs, with one Beaufort being damaged by anti-aircraft fire. Out of two Beauforts that carried out a diversionary attack on Lae, one failed to return.