Aces High Bulletin Board

General Forums => Aircraft and Vehicles => Topic started by: donna43 on December 11, 2016, 12:54:39 AM

Title: P-51 Mustang Whistle
Post by: donna43 on December 11, 2016, 12:54:39 AM

Anyone know what causes it?
https://youtu.be/8X-kgOn5G6Q

Title: Re: P-51 Mustang Whistle
Post by: Chalenge on December 11, 2016, 04:07:09 AM

The cooling duct. It works exactly like a whistle does.

Title: Re: P-51 Mustang Whistle
Post by: FLOOB on December 11, 2016, 06:33:03 AM

Squeal piggy five one!

Title: Re: P-51 Mustang Whistle
Post by: j500ss on December 11, 2016, 01:34:32 PM

I was always lead to believe it was the gun ports, and only on the D's.   :headscratch:

Title: Re: P-51 Mustang Whistle
Post by: Vraciu on December 11, 2016, 02:04:56 PM

It's the same thing we have under the radome of my jet: a deer whistle for landing in the Texas Hill Country.   :bolt:

Title: Re: P-51 Mustang Whistle
Post by: donna43 on December 11, 2016, 06:52:14 PM

Found this.

https://youtu.be/YKhfDF0ZUWE

Title: Re: P-51 Mustang Whistle
Post by: Chalenge on December 11, 2016, 09:06:38 PM

Yes, but airflow across the mouth of those tubes is not 90 degrees in flight. Perhaps turbulence plays a part? I still favor the air duct, because there are Mustangs out there without the gun ports and yes they still whistle.

http://www.historicracer.com/aviation/p51-mustang-meredith-effect-lee-atwood/

(EDIT): Ungunned Mustangs whistling:

https://www.youtube.com/watch?v=3wUsFjTyG8M

Title: Re: P-51 Mustang Whistle
Post by: colmbo on December 11, 2016, 10:36:33 PM

Quote from: j500ss on December 11, 2016, 01:34:32 PM

I was always lead to believe it was the gun ports, and only on the D's.   :headscratch:

Mustangs without gunport make the same sound.  Watch a video of Lee flying Crazy Horse.

Title: Re: P-51 Mustang Whistle
Post by: Jag34 on December 12, 2016, 02:36:21 PM

Here is a good video of P51D making the whistling sound. It seems it happens at certain angles in flight.

https://www.youtube.com/watch?v=h5fjKEXXPQ8 (https://www.youtube.com/watch?v=h5fjKEXXPQ8)

Title: Re: P-51 Mustang Whistle
Post by: Wyatt134 on July 04, 2017, 02:00:41 PM

its dives and pull ups on the gunports and on several openings more than likely the lower intake and the nose intake. its air rushing over an open hollow area :airplane: