Hi Danny
The Wirraway was derived from the Harvard. OK for training and army co-operation but bloody useless as a fighter against the Zero, where even the Spitfire was hard pressed.
There had been a flight of them at Rabaul, part of 24 Sqdn RAAF, which had no chance. The Squadron effectively lasted 7 minutes into the first attack.
When told to send his last, damaged bomber to attack the Japanese task force, the Squadron Leader replied with the Latin phrase for "We who are about to die salute you."
One Wirraway did manage a kill in New Guinea, once. This was originally claimed as a Zero but historians now think it was an Oscar.
The P-40's could survive using diving tactics but could not survive a turning fight