01/22/2026
" Engineers Called His B-25 Gunship "Impossible" — Until It Sank 12 Japanese Ships in 3 Days...."
At 7:42 a.m. on August 17, 1942, mechanics at Eagle Farm Airfield near Brisbane were doing something bomber engineers said couldn’t be done. They were welding .50-caliber machine guns into the nose of a Douglas A-20 Havoc — right where the bombardier used to sit.
Watching them work was Paul Gunn.
Forty-three years old.
Twenty-one years in the Navy.
And a personal war no one else on that airfield carried: his wife and four children were trapped in a Japanese prison camp in Manila.
The Fifth Air Force was bleeding aircraft. High-altitude bombing against moving Japanese convoys wasn’t working. When crews flew lower, shipboard gunners tore them apart. In July alone, the 3rd Attack Group lost eleven A-20s trying — and failing — to stop reinforcements moving into New Guinea.
Gunn believed the problem wasn’t the pilots.
It was the way they were fighting.
His idea sounded reckless: turn bombers into flying shotguns.
Fly so low you could skip bombs across the water — but first, drown enemy gunners in forward firepower. That meant ripping out bombsights and replacing them with .50-caliber guns.
The math was brutal. Four .50s in the nose, firing straight ahead, more than 1,700 rounds per minute. Gunn scavenged guns from wrecked P-39s and P-40s whose pilots wouldn’t be coming back. The guns weighed more than 250 pounds with ammunition. Engineers warned the aircraft would be unstable. One test flight nearly put the A-20 into the ground.
Gunn rebalanced the plane by hand.
Shifted equipment.
Re-trimmed the tail.
Tried again.
The pilot came back pale and sweating.
“She flies angry,” he said.
“But she flies.”
On September 12, 1942, sixteen modified A-20s attacked the Japanese airfield at Buna at treetop height. The result stunned everyone: fourteen enemy aircraft destroyed on the ground, every anti-aircraft position silenced — zero American losses.
The concept worked.
But the A-20 wasn’t enough. Its range was too short. Its payload too small. Gunn needed something bigger.
He chose the B-25 Mitchell.
What he built next made engineers shake their heads.
He stripped out the bombardier.
Mounted four .50s in the nose.
Added four more in cheek packs.
Rotated the top turret forward.
Then added side guns.
Fourteen forward-firing machine guns.
At full trigger pull, the aircraft threw more than 200 pounds of lead per minute straight ahead. Pilots said it felt like flying inside a thunderstorm made of steel.
Commanders were skeptical. Engineers called it dangerous. Some said it was suicidal.
Then the gunships went into combat.
Over three days, Gunn’s B-25 strafers attacked Japanese convoys at mast-height. Deck guns were smashed. Crews were pinned down. Bombs skipped into hulls at point-blank range.
Twelve Japanese ships were sunk.
Entire convoys were wiped out.
And for the first time, the Japanese lost control of the sea lanes feeding New Guinea.
The “impossible” aircraft became the most feared weapon in the Southwest Pacific.
Not because it was elegant.
But because it worked.
👉 How Paul Gunn’s gunship tactics reshaped air warfare — and why Japanese sailors learned to fear the sound of low-flying B-25s — is where this story gets even more unbelievable. Stay with it.
