Who shot The Red Baron has been contested for decades.

Evidence now reveals Australian gunners are responsible.

Shot down April 21 1918, 100 years ago tomorrow, Baron Manfred von Richthofen was a feared German pilot, hailing 80 air combat victories.

Documentary-maker, author and war historian Will Davies tells with Chris Smith about the heroic Australian who shot down the feared pilot.

Click PLAY below to hear the full story

Image: Australian War Memorial