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Posted

I've noticed the whistling sound since updating today and from what I've read, "if the intercooler and oil cooler doors are closed, the F4U Corsair should make less of the characteristic whistling sound or potentially none at all." Also, I'm hearing it when at not very high speeds as well, but have read that "the whistle is most noticeable at much higher speeds, such as during attack dives or when approaching maximum level speed (over 300 knts)." I don't mind it during a dive or when really hauling ass - with vents open, but I'm hearing it with everything closed and at 200 and less knts cruise speed, which seem overdone to me based on the above. I'd be interested in other opinions. Thx. 

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Posted

Thx a bunch for your quick response. Here's a few (of varying quality) I've found so far: 

"The Corsair’s unique and innovative configuration incorporated engine oil coolers in the inboard wing sections, with the resulting airflow through them making an unmistakable whistling sound, audible over the sound of the engine and firing of its guns."
This passage appears in the Background section of the article https://reviews.ipmsusa.org/review/f4u-and-fg-corsairs-part-2-whistling-death

 

"Other wing features included a leading-edge air intake at the fuselage intersection that provided cooling air for the oil system and the engine supercharger inter-stage. Under certain flight conditions, particularly high-speed dives, the intakes created a distinct screaming or high-pitched whistling sound. Japanese ground troops under attack by Corsairs soon linked the sound with the fearsome ordnance capabilities of the bent-wing bird. Because of this, and the Corsair's superior air combat capabilities, the Japanese referred to the F4U as 'Whistling Death.'"  https://www.usni.org/magazines/naval-history-magazine/1995/february/designing-bent-wing-bird

 

 

 

Guyton, Boone T. Whistling Death: The Test Pilot’s Story of the F4U Corsair. Atglen, PA: Schiffer Publishing, 1994.
  • Relevance: This book, written by Boone T. Guyton, a test pilot at Chance Vought who flew the F4U Corsair extensively, is one of the most authoritative primary sources on the aircraft’s development and characteristics. Guyton directly addresses the whistling sound, attributing it to “the curious high-pitched whistling sound of air being swallowed into its inlet ducts” (p. 7). He notes that this sound was particularly noticeable during high-speed maneuvers, such as dives, due to the airflow through the wing-root air intakes for the oil coolers and engine. While not a peer-reviewed academic journal, this firsthand account from a key figure in the Corsair’s testing phase is considered a primary source with high reliability in aviation history circles

 

Tillman, Barrett. Corsair: The F4U in World War II and Korea. Annapolis, MD: Naval Institute Press, 1979.
  • Relevance: Barrett Tillman is a well-respected aviation historian, and this book is a detailed historical and technical account of the F4U Corsair’s design and combat performance. Tillman references the “Whistling Death” nickname, noting that the sound originated from the wing-root air intakes (housing oil coolers and intercoolers) during high-speed operations, particularly dives. He explains that the inverted gull-wing design and the placement of the intakes caused air to produce a distinctive high-pitched whistle at high velocities, consistent with high-speed dives or fast level flight. This source is widely cited in aviation history studies and is considered a standard reference for the Corsair.

 

Dean, Francis H. America’s Hundred Thousand: The U.S. Production Fighter Aircraft of World War II. Atglen, PA: Schiffer Publishing, 1997.
  • Relevance: This comprehensive study of U.S. fighter aircraft production and performance during World War II includes a detailed section on the F4U Corsair. Dean discusses the aircraft’s aerodynamic features, including the wing-root inlets for the oil coolers and turbo-supercharger, which produced the whistling sound during high-speed maneuvers. The book confirms that the sound was most prominent during dives or high-speed flight due to the high-velocity airflow through these inlets. As a Schiffer publication, it is a respected source in aviation history, blending technical data with operational context.

 

Sullivan, Jim. F4U Corsair in Action. Carrollton, TX: Squadron/Signal Publications, 1977.
  • Relevance: This book, part of the “In Action” series, is a well-regarded reference for aviation enthusiasts and historians, providing detailed technical and operational insights into the F4U Corsair. Sullivan notes that the whistling sound, which led to the “Whistling Death” nickname, was caused by air rushing through the oil cooler and intercooler inlets in the wing roots during high-speed dives. The book emphasizes that the sound was most audible during aggressive maneuvers, such as dives or high-speed passes, due to the aerodynamic design of the inlets. While not a peer-reviewed journal, Squadron/Signal publications are respected for their accuracy and are often used in aviation history research.

 

 

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Posted
12 hours ago, Invisibull said:

I've noticed the whistling sound since updating today and from what I've read, "if the intercooler and oil cooler doors are closed, the F4U Corsair should make less of the characteristic whistling sound or potentially none at all." Also, I'm hearing it when at not very high speeds as well, but have read that "the whistle is most noticeable at much higher speeds, such as during attack dives or when approaching maximum level speed (over 300 knts)." I don't mind it during a dive or when really hauling ass - with vents open, but I'm hearing it with everything closed and at 200 and less knts cruise speed, which seem overdone to me based on the above. I'd be interested in other opinions. Thx. 

Since there was nothing for F4U in yesterday's patch (see patch notes), you're probably wrong about your observation since yesterday. If it was ok for you the day before yesterday, it still is now...

But funnily enough, I've also seen people complaining here in the forum that it's too quiet... So it's probably just right 😄

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Posted (edited)
15 minutes ago, Mike Busutil said:

This was in the patch notes about the F4U: 

  • AI aircraft. AI F4U will not engage shipping with BAT bomb - fixed

This refers less to the F4U than to ED's AI. Behaviour and their use of weapons.
That's why this is also under "DCS Core" and not under "Magnitude3 - F4U"...

Edited by felixx75
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