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Is there evidence the Japanese called the Corsair "Whistling Death"?
Short answer
No. The claim is repeated so often it has acquired the status of fact, but the Japanese equivalent appears in no Japanese literature, no war records, not even in prisoner interrogations; the nickname was manufactured by Vought's publicity department and has been misattributed ever since.

The story that circulates
The most repeated version claims that the Japanese nicknamed the fighter "Whistling Death." It is linked to the aircraft's sound: air rushing at high speed through the wing's slots gave it a very distinctive noise.
Why it doesn't hold up
The claim has been repeated so relentlessly that it has taken on the status of fact, but the Japanese equivalent appears nowhere: not in Japanese literature, not in war records, not even in prisoner interrogations. The nickname was actually invented by Vought's publicity department. Skepticism about this nickname goes back a long way. One reason to distrust these fearsome nicknames is that, in reality, enemies never give flattering labels to their adversary's aircraft.
The Beaufighter precedent
Before the Corsair appeared, the phrase was associated with whizzing bullets and artillery shells in anecdotes from the American Civil War and the First World War. The unit that operated the Beaufighter when it received, under similar circumstances and supposedly from the Japanese, the nickname "Whispering Death" was the 224 Group, an Australian squadron. It would not be far-fetched to suppose the phrase traveled from the antipodes all the way to Guadalcanal. In the Beaufighter's case, the attribution appears to come from false wartime Allied propaganda. It is also objected that Japanese combatants spoke Japanese and would not have said "whispering death." The claim is described as blatantly ridiculous propaganda, endlessly repeated online. A reward of a thousand pounds sterling has even been offered to anyone who can provide convincing evidence that a Japanese person called the Beaufighter that during the Second World War.
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