RogueRunner Posted May 21, 2012 Share Posted May 21, 2012 What causes that? Every time you put some g's on the aircraft it makes this whining sound. It's in the DCS sound set and clearly audible on cockpit youtube videos of the real Mustang. Anyone have an idea? With the price of ammunition these days do not expect a warning shot. Link to comment Share on other sites More sharing options...
Fox One Posted May 21, 2012 Share Posted May 21, 2012 I think it's caused by the openings in the wing's leading edge for the six .50 cal guns. Looks like in the sim the whistle starts above a certain angle of attack and it increses slightly with increasing AoA. I think it's a nice touch, I like it. My DCS videos Link to comment Share on other sites More sharing options...
MTFDarkEagle Posted May 21, 2012 Share Posted May 21, 2012 It's NOT the gunports alone. It may be part of it. Mostly it's the oil/coolant radiator/openings. Have a look/listen to this one: Xv5GhgKBexc Notice the whine? Granted it's not as loud, but it is in level flight.. Now look at some pictures of this aircraft: Notice the complete lack of gunports! Lukas - "TIN TIN" - 9th Shrek Air Strike Squadron TIN TIN's Cockpit thread Link to comment Share on other sites More sharing options...
Fox One Posted May 21, 2012 Share Posted May 21, 2012 When I noticed that in the sim the whistle is AoA-dependent it seemed somehow logical to me it must be the gunports. It looks like it's not. As you said, most likely radiator intake or smth radiator related. I can't think of anything else. My DCS videos Link to comment Share on other sites More sharing options...
MTFDarkEagle Posted May 21, 2012 Share Posted May 21, 2012 There has been a lot of discussion about this very topic. I don't buy the gunport story ;) Lukas - "TIN TIN" - 9th Shrek Air Strike Squadron TIN TIN's Cockpit thread Link to comment Share on other sites More sharing options...
Nate--IRL-- Posted May 21, 2012 Share Posted May 21, 2012 (edited) There has been a lot of discussion about this very topic. I don't buy the gunport story ;) Why? It was confirmed by P-51 owners other than TFC too. Taping up the ports eliminated the whistle at High AoA. That is not to say the radiator duct or supercharger does not also play a part - but by far the loudest most audible whistle is from the Gunports. Nate Edited May 21, 2012 by Nate--IRL-- Ka-50 AutoPilot/stabilisation system description and operation by IvanK- Essential Reading Link to comment Share on other sites More sharing options...
MTFDarkEagle Posted May 21, 2012 Share Posted May 21, 2012 Have you looked at the linked video? It was confirmed by other P-51 pilots as well that it isn't the gunports (at least as part of it). Lukas - "TIN TIN" - 9th Shrek Air Strike Squadron TIN TIN's Cockpit thread Link to comment Share on other sites More sharing options...
Nate--IRL-- Posted May 21, 2012 Share Posted May 21, 2012 We have P-51 owners that swear it is the cause, and some that swear it isn't, then It would seem it is not the only cause - but it is the major one. Nate Ka-50 AutoPilot/stabilisation system description and operation by IvanK- Essential Reading Link to comment Share on other sites More sharing options...
G-Lock91 Posted May 21, 2012 Share Posted May 21, 2012 This is just one big fat mystery:megalol: everyone has an opinion on what causes it but nobody really knows. Maybe that adds to the coolness factor. [sIGPIC][/sIGPIC] "If they can make penicillin out of moldy bread, they can certainly make something out of you" -Muhammad Ali WIN 7 64-bit SP1 | AMD Phenom II X4 955 | 8.0 GB RAM | NVidia GeForce GTX 550Ti | CH Pro Throttle | CH Fighterstick | CH Pro Pedals | TrackIR5 Link to comment Share on other sites More sharing options...
159th_Viper Posted May 21, 2012 Share Posted May 21, 2012 It would seem it is not the only cause - but it is the major one. I'm no audiophile so help me out here: What are the chances that the 2 scoops make the exact same sound (to my ears in any event) as the gun ports? If I had to guess (and yes, I have spent many hours blowing glass coke-bottles), I'd say somewhere between slim and f-all :D Sounds are worlds apart, unless speed somehow influences it. That said, I'm not sure I want to know.......the mystery certainly adds something. Maybe it's a secret best kept by the Mustang :) Novice or Veteran looking for an alternative MP career? Click me to commence your Journey of Pillage and Plunder! [sIGPIC][/sIGPIC] '....And when I get to Heaven, to St Peter I will tell.... One more Soldier reporting Sir, I've served my time in Hell......' Link to comment Share on other sites More sharing options...
TimmyD Posted May 21, 2012 Share Posted May 21, 2012 (edited) There has been a lot of discussion about this very topic. I don't buy the gunport story ;) I know Ferocious Frankies' cheif engineer and he's confirmed that it is gun port whistle at +G's. It's not the supercharger and not the ram air..... It's the Gunports. http://www.youtube.com/watch?v=wd8Q3dxQ5KY Edited May 21, 2012 by TimmyD [sIGPIC]http://forums.eagle.ru/signaturepics/sigpic90244_1.gif[/sIGPIC]Windows 7 Ultimate 64 on OCZ SSD, (AM3)AMD955BE x4 3.2GHz - GPU AMD6950 x2Gb - 16Gb Ripjaw G-Skill DDR3 PC12800 1600MHz https://www.facebook.com/#!/FerociousFrankie Link to comment Share on other sites More sharing options...
Ali Fish Posted May 21, 2012 Share Posted May 21, 2012 (edited) how ed have implemented it is the answer no ? so what defines it in the sim etc etc ? Edited May 21, 2012 by Ali Fish [sIGPIC][/sIGPIC] Link to comment Share on other sites More sharing options...
159th_Viper Posted May 21, 2012 Share Posted May 21, 2012 I know Ferocious Frankies' cheif engineer and he's confirmed that it is gun port whistle at +G's. It's not the supercharger and not the ram air..... It's the Gunports. Which is not very authoritative when you have regard to another Mustang making exactly the same sound without gun ports. Novice or Veteran looking for an alternative MP career? Click me to commence your Journey of Pillage and Plunder! [sIGPIC][/sIGPIC] '....And when I get to Heaven, to St Peter I will tell.... One more Soldier reporting Sir, I've served my time in Hell......' Link to comment Share on other sites More sharing options...
TimmyD Posted May 21, 2012 Share Posted May 21, 2012 I believe Joe Kennedy over any of the armchair experts Viper. He knows his Mustangs. And the other argument is, when others have blocked or taped the gun ports up, NO WHINE!!! You have to see a whistler fly before you believe it. But hey, I don't need to prove it, just ask Joe!!! [sIGPIC]http://forums.eagle.ru/signaturepics/sigpic90244_1.gif[/sIGPIC]Windows 7 Ultimate 64 on OCZ SSD, (AM3)AMD955BE x4 3.2GHz - GPU AMD6950 x2Gb - 16Gb Ripjaw G-Skill DDR3 PC12800 1600MHz https://www.facebook.com/#!/FerociousFrankie Link to comment Share on other sites More sharing options...
Blaze Posted May 21, 2012 Share Posted May 21, 2012 (edited) So how do you explain the Reno Mustangs like Miss America, Strega, etc who have NO GUN PORTS OR EJECTOR CHUTES but still whine? ;) how ed have implemented it is the answer no ? so what defines it in the sim etc etc ? When there is high AOA on the airframe, you get the whine (pulling back hard on the stick or when you're slipping). Edited May 21, 2012 by Blaze i7 7700K | 32GB RAM | GTX 1080Ti | Rift CV1 | TM Warthog | Win 10 "There will always be people with a false sense of entitlement. You can want it, you can ask for it, but you don't automatically deserve it. " Link to comment Share on other sites More sharing options...
159th_Viper Posted May 21, 2012 Share Posted May 21, 2012 What armchair experts? Have you seen the video and pics? Did you not hear the whistle on the Mustang without gun ports? Surely you cannot ignore that? Novice or Veteran looking for an alternative MP career? Click me to commence your Journey of Pillage and Plunder! [sIGPIC][/sIGPIC] '....And when I get to Heaven, to St Peter I will tell.... One more Soldier reporting Sir, I've served my time in Hell......' Link to comment Share on other sites More sharing options...
MTFDarkEagle Posted May 21, 2012 Share Posted May 21, 2012 What armchair experts? Have you seen the video and pics? Did you not hear the whistle on the Mustang without gun ports? Surely you cannot ignore that? ^^^^^^^^^^^THIS Lukas - "TIN TIN" - 9th Shrek Air Strike Squadron TIN TIN's Cockpit thread Link to comment Share on other sites More sharing options...
flightace37 Posted May 21, 2012 Share Posted May 21, 2012 I wonder if some of it might also come from the ram scoop under the prop spinner. It's small enough to produce a fairly high pitch. Fact of the matter is though, we would have to outfit a Mustang with multiple in-flight microphones to pin down where the noise is coming from. - WH_Mouse Link to comment Share on other sites More sharing options...
Blaze Posted May 21, 2012 Share Posted May 21, 2012 Xv5GhgKBexc No gun ports, and what do you know? i7 7700K | 32GB RAM | GTX 1080Ti | Rift CV1 | TM Warthog | Win 10 "There will always be people with a false sense of entitlement. You can want it, you can ask for it, but you don't automatically deserve it. " Link to comment Share on other sites More sharing options...
Nate--IRL-- Posted May 21, 2012 Share Posted May 21, 2012 What armchair experts? Have you seen the video and pics? Did you not hear the whistle on the Mustang without gun ports? Surely you cannot ignore that? Who's ignoring it? I am however struggling to find any Level flyby with a whistle any where near as loud as a High AoA pass. Nate Ka-50 AutoPilot/stabilisation system description and operation by IvanK- Essential Reading Link to comment Share on other sites More sharing options...
MTFDarkEagle Posted May 21, 2012 Share Posted May 21, 2012 Who's ignoring it? I am however struggling to find any Level flyby with a whistle any where near as loud as a High AoA pass. Nate So if it's a high AoA it's gotta be, without exeption the gunports? Lukas - "TIN TIN" - 9th Shrek Air Strike Squadron TIN TIN's Cockpit thread Link to comment Share on other sites More sharing options...
Nate--IRL-- Posted May 21, 2012 Share Posted May 21, 2012 (edited) Why? It was confirmed by P-51 owners other than TFC too. Taping up the ports eliminated the whistle at High AoA. That is not to say the radiator duct or supercharger does not also play a part - but by far the loudest most audible whistle is from the Gunports. Nate We have P-51 owners that swear it is the cause, and some that swear it isn't, then It would seem it is not the only cause - but it is the major one. Nate Who's ignoring it? I am however struggling to find any Level flyby with a whistle any where near as loud as a High AoA pass. Nate So if it's a high AoA it's gotta be, without exeption the gunports? Where have I stated that? EDIT:- The first post I said it - 1 sec - I am not saying the only cause is the Gunports. However, The Whistle is definitely much much more pronounced at AoA - I don't think this is in dispute. And also we have testimony from P-51 owners that Taping up the Ports eliminated the High AoA whistle. Nate Edited May 21, 2012 by Nate--IRL-- Ka-50 AutoPilot/stabilisation system description and operation by IvanK- Essential Reading Link to comment Share on other sites More sharing options...
MTFDarkEagle Posted May 21, 2012 Share Posted May 21, 2012 Where have I stated that? Nate Why? It was confirmed by P-51 owners other than TFC too. Taping up the ports eliminated the whistle at High AoA. That is not to say the radiator duct or supercharger does not also play a part - but by far the loudest most audible whistle is from the Gunports. Nate Here. Lukas - "TIN TIN" - 9th Shrek Air Strike Squadron TIN TIN's Cockpit thread Link to comment Share on other sites More sharing options...
MTFDarkEagle Posted May 21, 2012 Share Posted May 21, 2012 However, The Whistle is definitely much much more pronounced at AoA - I don't think this is in dispute. Aye. and also we have testimony from P-51 owners that Taping up the Ports eliminated the High AoA whistle. Nate I can link to a testimony from another who says the complete oposite. Lukas - "TIN TIN" - 9th Shrek Air Strike Squadron TIN TIN's Cockpit thread Link to comment Share on other sites More sharing options...
159th_Viper Posted May 21, 2012 Share Posted May 21, 2012 Who's ignoring it? TimmyD as per the posts above. As for the sound, I don't think much stock can be put into what we hear on Youtube videos insofar as the volume is concerned and the volume alone. Sound volume can be enhanced, one person might have better recording equipment than the other etc etc. My point is the nature of the sound and not the volume: I need someone to explain to me how it is possible for both the gunports and the scoops to produce the exact same sound. If someone would furnish me with that explanation then I'll be happy :) Novice or Veteran looking for an alternative MP career? Click me to commence your Journey of Pillage and Plunder! [sIGPIC][/sIGPIC] '....And when I get to Heaven, to St Peter I will tell.... One more Soldier reporting Sir, I've served my time in Hell......' Link to comment Share on other sites More sharing options...
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