Newly built at the Commonwealth Aircraft Corporation 's Maribyrnong factory , the Wirraways were the state of the art in the RAAF 's fighter arsenal .
Were heavy , under - powered and poorly armed by international standards .
Newly built at the Commonwealth Aircraft Corporation 's Maribyrnong factory , the Wirraways were the state of the art in the RAAF 's fighter arsenal , but were heavy , under - powered and poorly armed by international standards .