Radiators open or auto? - Page 4 - ED Forums
 


Notices

Reply
 
Thread Tools Display Modes
Old 11-13-2018, 11:59 AM   #31
Captain Orso
Senior Member
 
Captain Orso's Avatar
 
Join Date: Feb 2015
Location: Stuttgart, Germany
Posts: 1,225
Default

I wonder how much the Meredith effect plays a role in speed here.

But the effect is so dynamic with air temp, barometric air pressure, current IAS*, water/oil temps.*, and radiator door openings*, all affecting the results, with * marked aspects dynamically influencing each other, and no way to measure the drag caused by the radiator doors, how far they are opened at any point in time, nor the net results of the effect at any point in time... *ugh* I'm not an aeronautical engineer guys
__________________
When you hit the wrong button on take-off


System Specs.
Spoiler:
System board ... MSI X99A GAMING 9 ACK
CPU ............ Intel Core i7-5820K @ 3800MHz per OC Genie
CPU cooling .... Noctua NH-D15
Memory ......... 16GB DDR4-3000 G.Skill Ripjaw
PSU ............ Corsair AX860i PSU
Graphics card .. Zotac Nvidia GeForce GTX 1080 Ti Amp! Extreme
System disk .... SanDisk Extreme PRO 480GB SSD
Monitor ........ ASUS MG279Q, 27"
VR ............. Oculus Rift CV1
Captain Orso is offline   Reply With Quote
Old 11-13-2018, 12:22 PM   #32
Reflected
Senior Member
 
Reflected's Avatar
 
Join Date: Feb 2016
Location: LHDK
Posts: 2,145
Default

Quote:
Originally Posted by Captain Orso View Post
I wonder how much the Meredith effect plays a role in speed here.

I once asked the same question and YoYo said it's modeled in game.
__________________


"The Big Show" Spitfire Mk.IX Campaign
My DCS Skins
B350 Gaming Plus / Ryzen 5 1600 X @ 3,9 / MSI GeForce GTX1070 8192 / 16 GB RAM / Samsung PM961 512 SSD / MS FFB 2 / TM Warthog throttle / Saitek ProFlight pedals / Oculus Rift CV1
Reflected is offline   Reply With Quote
Old 11-13-2018, 01:25 PM   #33
Captain Orso
Senior Member
 
Captain Orso's Avatar
 
Join Date: Feb 2015
Location: Stuttgart, Germany
Posts: 1,225
Default

I'm not question that it is, only saying that I have no idea how to actually make use of it optimally, bc the variable are so numerous, that it might be impossible to predict what to do to get the best outcome.
__________________
When you hit the wrong button on take-off


System Specs.
Spoiler:
System board ... MSI X99A GAMING 9 ACK
CPU ............ Intel Core i7-5820K @ 3800MHz per OC Genie
CPU cooling .... Noctua NH-D15
Memory ......... 16GB DDR4-3000 G.Skill Ripjaw
PSU ............ Corsair AX860i PSU
Graphics card .. Zotac Nvidia GeForce GTX 1080 Ti Amp! Extreme
System disk .... SanDisk Extreme PRO 480GB SSD
Monitor ........ ASUS MG279Q, 27"
VR ............. Oculus Rift CV1
Captain Orso is offline   Reply With Quote
Old 11-13-2018, 01:32 PM   #34
Shahdoh
Member
 
Shahdoh's Avatar
 
Join Date: Jan 2013
Posts: 949
Default

Testing for best speeds for the Mustang, I have never been able to prove the Meredith effects occurs, other than to get better speed by reducing the drag from the coolant radiator door by operating it manually while keeping the engine cool enough to run for a good while.

From what I have read, it is supposed to be just enough thrust to overcome the initial drag from the radiator to begin with, so we are not talking about anything earth shattering, just a few MPH on the top end, and that I have seen. Meredith effect thrust or reduced drag??? In this case, seems like the same thing.
Shahdoh is offline   Reply With Quote
Old 11-13-2018, 01:48 PM   #35
Captain Orso
Senior Member
 
Captain Orso's Avatar
 
Join Date: Feb 2015
Location: Stuttgart, Germany
Posts: 1,225
Default

Well yes, it is floating between thrust and reduced drag. But I thought I did read somewhere that it actually added something like 30 - 40 MPH compared to the speeds the 51 would reach if the radiators were simply hanging out in the air I guess.

I think you'd need like a bank of NACA slide-rule jockeys to tell you what to set what to for and given situation. Honestly, while I'm flying in combat, my thoughts are with if I'm keeping my engine cool enough to get me through the fight, and not if I might grab another 3 MPH if I closed the oil radiator door just a bit.
__________________
When you hit the wrong button on take-off


System Specs.
Spoiler:
System board ... MSI X99A GAMING 9 ACK
CPU ............ Intel Core i7-5820K @ 3800MHz per OC Genie
CPU cooling .... Noctua NH-D15
Memory ......... 16GB DDR4-3000 G.Skill Ripjaw
PSU ............ Corsair AX860i PSU
Graphics card .. Zotac Nvidia GeForce GTX 1080 Ti Amp! Extreme
System disk .... SanDisk Extreme PRO 480GB SSD
Monitor ........ ASUS MG279Q, 27"
VR ............. Oculus Rift CV1
Captain Orso is offline   Reply With Quote
Old 11-13-2018, 01:57 PM   #36
Shahdoh
Member
 
Shahdoh's Avatar
 
Join Date: Jan 2013
Posts: 949
Default

Quote:
Originally Posted by Captain Orso View Post
I think you'd need like a bank of NACA slide-rule jockeys to tell you what to set what to for and given situation. Honestly, while I'm flying in combat, my thoughts are with if I'm keeping my engine cool enough to get me through the fight, and not if I might grab another 3 MPH if I closed the oil radiator door just a bit.
Very true, but it is also nice to know that that extra speed is available when you might need it and able to take advantage of it! And as far as reduced drag airspeed increase, it is considerably more than 3 mph.

Will try to get some video of the speed differences later on today.
Shahdoh is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT. The time now is 09:11 PM. vBulletin Skin by ForumMonkeys. Powered by vBulletin®.
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.