mytai01 Posted October 12, 2017 Posted October 12, 2017 What is the high frequency buzzing noise I've heard Eagles make during some maintenance procedures? The engines are off... MS Win7 Pro x64, Intel i7-6700K 4.0Ghz, Corsair RAM 16Gb,EVGA GeForce GTX 1080 FTW GAMING ACX 3.0, w/ Adjustable RGB LED Graphics Card 08G-P4-6286-KR, Creative Labs SB X-FI Titanium Fatal1ty Champ PCIe Sound Card, Corsair Neutron XTI 1TB SSD, TM Warthog Throttle & Stick, TM TPR Pedels, Oculus Rift VR Headset CV1, Klipsch Promedia 4.1 Speakers...
feefifofum Posted October 12, 2017 Posted October 12, 2017 Not an F-15 maintainer, and not sure if this is something you can do without the engines running, but are you talking about the nozzle test? THE GEORGIAN WAR - OFFICIAL F-15C DLC
mytai01 Posted October 13, 2017 Author Posted October 13, 2017 The sound of something else other than an engine running after engine shutdown. MS Win7 Pro x64, Intel i7-6700K 4.0Ghz, Corsair RAM 16Gb,EVGA GeForce GTX 1080 FTW GAMING ACX 3.0, w/ Adjustable RGB LED Graphics Card 08G-P4-6286-KR, Creative Labs SB X-FI Titanium Fatal1ty Champ PCIe Sound Card, Corsair Neutron XTI 1TB SSD, TM Warthog Throttle & Stick, TM TPR Pedels, Oculus Rift VR Headset CV1, Klipsch Promedia 4.1 Speakers...
Vampyre Posted October 13, 2017 Posted October 13, 2017 I'm not an Eagle guy but I think what you are trying to point out is the avionics cooling fans shutting off when the power from the generators shut's off. When engine RPM goes below a certain percentage the generators will stop delivering power to the aircraft systems. Shutting off fuel flow to the engines stops the combustion process but the engine is still spinning keeping the generators running until the engine spool's down enough that the generators will no longer deliver electricity to the aircraft systems to run things like avionics cooling fans. Truly superior pilots are those that use their superior judgment to avoid those situations where they might have to use their superior skills. If you ever find yourself in a fair fight, your tactics suck! "If at first you don't succeed, Carrier Landings are not for you!"
mytai01 Posted October 14, 2017 Author Posted October 14, 2017 I'm not an Eagle guy but I think what you are trying to point out is the avionics cooling fans shutting off when the power from the generators shut's off. When engine RPM goes below a certain percentage the generators will stop delivering power to the aircraft systems. Shutting off fuel flow to the engines stops the combustion process but the engine is still spinning keeping the generators running until the engine spool's down enough that the generators will no longer deliver electricity to the aircraft systems to run things like avionics cooling fans. Well, I want that in my DCS Eagle and any other aircraft with a similar setup...;) MS Win7 Pro x64, Intel i7-6700K 4.0Ghz, Corsair RAM 16Gb,EVGA GeForce GTX 1080 FTW GAMING ACX 3.0, w/ Adjustable RGB LED Graphics Card 08G-P4-6286-KR, Creative Labs SB X-FI Titanium Fatal1ty Champ PCIe Sound Card, Corsair Neutron XTI 1TB SSD, TM Warthog Throttle & Stick, TM TPR Pedels, Oculus Rift VR Headset CV1, Klipsch Promedia 4.1 Speakers...
VZ_342 Posted October 14, 2017 Posted October 14, 2017 Auxiliary Power Units (APU). Once the engines are shut down, the Auxiliary Power Units disconnect from the electrical busses and that's when the APU winds (whines) down. Source
mytai01 Posted October 14, 2017 Author Posted October 14, 2017 (edited) Auxiliary Power Units (APU). Once the engines are shut down, the Auxiliary Power Units disconnect from the electrical busses and that's when the APU winds (whines) down. Source I assume these APU are not like the kind airliners have and you're not meaning the JFS, right? Edited October 14, 2017 by mytai01 MS Win7 Pro x64, Intel i7-6700K 4.0Ghz, Corsair RAM 16Gb,EVGA GeForce GTX 1080 FTW GAMING ACX 3.0, w/ Adjustable RGB LED Graphics Card 08G-P4-6286-KR, Creative Labs SB X-FI Titanium Fatal1ty Champ PCIe Sound Card, Corsair Neutron XTI 1TB SSD, TM Warthog Throttle & Stick, TM TPR Pedels, Oculus Rift VR Headset CV1, Klipsch Promedia 4.1 Speakers...
mvsgas Posted October 14, 2017 Posted October 14, 2017 (edited) I think we should wait for someone that has actually work on the F-15. The F-15 does not have an APU, it has a JFS which is only used for the start and AFAIK, has nothing to do with the shutdown procedures. It could be the sound of the AMADS spooling down but I do not know since my experience on the F-15 is very limited. Of all the things the FC3 F-15 could use, why bother with something so trivial? Edited October 14, 2017 by mvsgas To whom it may concern, I am an idiot, unfortunately for the world, I have a internet connection and a fondness for beer....apologies for that. Thank you for you patience. Many people don't want the truth, they want constant reassurance that whatever misconception/fallacies they believe in are true..
mytai01 Posted October 15, 2017 Author Posted October 15, 2017 I think we should wait for someone that has actually work on the F-15. The F-15 does not have an APU, it has a JFS which is only used for the start and AFAIK, has nothing to do with the shutdown procedures. It could be the sound of the AMADS spooling down but I do not know since my experience on the F-15 is very limited. Of all the things the FC3 F-15 could use, why bother with something so trivial? What do you want to see? MS Win7 Pro x64, Intel i7-6700K 4.0Ghz, Corsair RAM 16Gb,EVGA GeForce GTX 1080 FTW GAMING ACX 3.0, w/ Adjustable RGB LED Graphics Card 08G-P4-6286-KR, Creative Labs SB X-FI Titanium Fatal1ty Champ PCIe Sound Card, Corsair Neutron XTI 1TB SSD, TM Warthog Throttle & Stick, TM TPR Pedels, Oculus Rift VR Headset CV1, Klipsch Promedia 4.1 Speakers...
Bulldog_1 Posted October 15, 2017 Posted October 15, 2017 If you are referring to just after engine shut-down, then the sound you hear is the emergency generator that comes on-line when the generators go off-line. The emergency generator is driven by hydraulic power and there is enough hydraulic pressure to drive it until the engines spool down. Eagle Keeper for 12 years. McDonnell Douglas and Boeing for 7 years. 2 DELL OptiPlex AIO 7410: i5-12500T 2.00GHz: 2TB SSD: 64GB RAM: UHD 770 1920x1080 @ 60Hz: ThrustMaster HOTAS X: IRL Retired Maintainer of the AT-38B: F-4E/G: F-15A/B/C/D: and McDonnell Douglas/Boeing Technical Advisor for the F-15C/D. I drive trains now.
feefifofum Posted October 15, 2017 Posted October 15, 2017 Thanks for the info kdrum! :thumbup: Always great to see so many knowledgeable folks around here. THE GEORGIAN WAR - OFFICIAL F-15C DLC
mvsgas Posted October 15, 2017 Posted October 15, 2017 What do you want to see? - Completely modeled cockpit with working switches and ability to do all require procedures to run the radar or proper engine start, etc. - Fully modeled systems. To whom it may concern, I am an idiot, unfortunately for the world, I have a internet connection and a fondness for beer....apologies for that. Thank you for you patience. Many people don't want the truth, they want constant reassurance that whatever misconception/fallacies they believe in are true..
Bulldog_1 Posted October 15, 2017 Posted October 15, 2017 Thanks for the info kdrum! :thumbup: Always great to see so many knowledgeable folks around here. U R Welcome. DELL OptiPlex AIO 7410: i5-12500T 2.00GHz: 2TB SSD: 64GB RAM: UHD 770 1920x1080 @ 60Hz: ThrustMaster HOTAS X: IRL Retired Maintainer of the AT-38B: F-4E/G: F-15A/B/C/D: and McDonnell Douglas/Boeing Technical Advisor for the F-15C/D. I drive trains now.
Bulldog_1 Posted October 15, 2017 Posted October 15, 2017 - Completely modeled cockpit with working switches and ability to do all require procedures to run the radar or proper engine start, etc. - Fully modeled systems. +1 DELL OptiPlex AIO 7410: i5-12500T 2.00GHz: 2TB SSD: 64GB RAM: UHD 770 1920x1080 @ 60Hz: ThrustMaster HOTAS X: IRL Retired Maintainer of the AT-38B: F-4E/G: F-15A/B/C/D: and McDonnell Douglas/Boeing Technical Advisor for the F-15C/D. I drive trains now.
SinusoidDelta Posted October 18, 2017 Posted October 18, 2017 - Completely modeled cockpit with working switches and ability to do all require procedures to run the radar or proper engine start, etc. - Fully modeled systems. +1 It almost brings a tear to my eye that nearly all the switches, buttons, connectors, arguments, etc. exist but are linked to nothing. Even if it's not full fidelity couldn't at least the main comm panel be used for radio Or the MPCD contrast/brightness toggles Maybe someday...:cry:
HiJack Posted October 18, 2017 Posted October 18, 2017 - Completely modeled cockpit with working switches and ability to do all require procedures to run the radar or proper engine start, etc. - Fully modeled systems. Yes please :thumbup:
ZEEOH6 Posted November 20, 2017 Posted November 20, 2017 I think we should wait for someone that has actually work on the F-15. The F-15 does not have an APU, it has a JFS which is only used for the start and AFAIK, has nothing to do with the shutdown procedures. It could be the sound of the AMADS spooling down but I do not know since my experience on the F-15 is very limited. Of all the things the FC3 F-15 could use, why bother with something so trivial? I was a F-15 engine guy for 4.5 years But yes, the F-15 has JFS for starting only, no APU or even battery power. If we needed power, we always used a -60. Alienware 17 R3: Intel i7 6820HK @ 4 GHz, 16 GB DDR4, GTX 980M, 1TB Samsung NVMe 951 SSD, AW Graphics Amplifier w/ GTX 1080, TM HOTAS Warthog, Oculus Rift CV1, Monstertech, MFG Crosswind, Jetseat KW-908
Bulldog_1 Posted November 22, 2017 Posted November 22, 2017 I was a F-15 engine guy for 4.5 years But yes, the F-15 has JFS for starting only, no APU or even battery power. If we needed power, we always used a -60. Do you remember "Limited Duty Mode"? or am I showing my age. DELL OptiPlex AIO 7410: i5-12500T 2.00GHz: 2TB SSD: 64GB RAM: UHD 770 1920x1080 @ 60Hz: ThrustMaster HOTAS X: IRL Retired Maintainer of the AT-38B: F-4E/G: F-15A/B/C/D: and McDonnell Douglas/Boeing Technical Advisor for the F-15C/D. I drive trains now.
SDsc0rch Posted November 22, 2017 Posted November 22, 2017 - Completely modeled cockpit with working switches and ability to do all require procedures to run the radar or proper engine start, etc. - Fully modeled systems. ++1 i7-4790K | Asus Sabertooth Z97 MkI | 16Gb DDR3 | EVGA GTX 980 | TM Warthog | MFG Crosswind | Panasonic TC-58AX800U [sIGPIC][/sIGPIC]
ZEEOH6 Posted November 22, 2017 Posted November 22, 2017 Do you remember "Limited Duty Mode"? or am I showing my age. Don’t believe I’ve ever heard of that, lol Alienware 17 R3: Intel i7 6820HK @ 4 GHz, 16 GB DDR4, GTX 980M, 1TB Samsung NVMe 951 SSD, AW Graphics Amplifier w/ GTX 1080, TM HOTAS Warthog, Oculus Rift CV1, Monstertech, MFG Crosswind, Jetseat KW-908
jaguara5 Posted November 22, 2017 Posted November 22, 2017 ++1 +1 A month ago Belsimtek posted this on reddit If you mean F-15C ASM then we can say that currently it is not on our plate. Currently we are helping ED with F/A-18C. And our current projects are F-4E, Mi-24 and NS-430.. If we will get back to F-15 later we will make community aware of that for sure. Fingers crossed...
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