« previous next »
Pages: 1 [2] 3 4 5 ... 10   Go Down

Author Topic: P-38 dive flaps produce no drag  (Read 13829 times)

Offline GScholz

  • Plutonium Member
  • *******
  • Posts: 8910
Re: P-38 dive flaps produce no drag
« Reply #15 on: March 12, 2014, 02:39:48 AM »
Unfortunately no...
Logged
"With the first link, the chain is forged. The first speech censored, the first thought forbidden, the first freedom denied, chains us all irrevocably."

Offline FLS

  • AH Training Corps
  • Plutonium Member
  • *******
  • Posts: 11617
      • Trainer's Website
Re: P-38 dive flaps produce no drag
« Reply #16 on: March 12, 2014, 03:11:28 AM »
Quote from: BnZs on March 12, 2014, 01:52:18 AM
No. Just pointing out that  deceleration device is quite useful in ACM. It seems odd to me that HTC has overlooked this bit.

I doubt it's overlooked. Looking at parts of aircraft in isolation can be misleading.
Logged

Offline GScholz

  • Plutonium Member
  • *******
  • Posts: 8910
Re: P-38 dive flaps produce no drag
« Reply #17 on: March 13, 2014, 02:34:51 PM »
It is physically impossible for it to not produce drag while being in an airflow.
Logged
"With the first link, the chain is forged. The first speech censored, the first thought forbidden, the first freedom denied, chains us all irrevocably."

Offline GScholz

  • Plutonium Member
  • *******
  • Posts: 8910
Re: P-38 dive flaps produce no drag
« Reply #18 on: March 13, 2014, 02:37:15 PM »
The dive flaps have a deployed angle similar to the landing flaps of WWII fighters, and they're not that much smaller either, to some of the single-engine fighters. It must produce a lot of drag. If not then we're in flying Unicorn land, magic rainbows and all.

« Last Edit: March 13, 2014, 02:41:44 PM by GScholz »
Logged
"With the first link, the chain is forged. The first speech censored, the first thought forbidden, the first freedom denied, chains us all irrevocably."

Offline Sunka

  • Persona Non Grata
  • Silver Member
  • ****
  • Posts: 1774
      • http://www.327th.com/
Re: P-38 dive flaps produce no drag
« Reply #19 on: March 13, 2014, 03:09:36 PM »
I have nothing to add to this subject,i just want to stay up to date on it's development.
 :noid
Logged
Someday the mountain might getem but the law nvr will. http://www.youtube.com/watch?v=SP5EkvOGMCs

Offline FLS

  • AH Training Corps
  • Plutonium Member
  • *******
  • Posts: 11617
      • Trainer's Website
Re: P-38 dive flaps produce no drag
« Reply #20 on: March 13, 2014, 04:01:08 PM »
Here's a study of dive brakes and dive flaps. It's just a wing but it looks like a P-38 wing.

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20030066111.pdf
Logged

Offline olds442

  • Persona Non Grata
  • Gold Member
  • *****
  • Posts: 2239
Re: P-38 dive flaps produce no drag
« Reply #21 on: March 13, 2014, 09:58:54 PM »
Quote from: CASHEW on March 10, 2014, 11:55:20 PM
Yeah hitech will fix this in the next millennium.
If all you do is complain trust me the door is that way --->
Logged
Quote from: Skuzzy on August 18, 2014, 09:54:22 AM
only a moron would use Dolby positioning in a game.
IGN: cutlass "shovels and rakes and implements of destruction"

Offline TwinBoom

  • Gold Member
  • *****
  • Posts: 2960
      • 39th FS "Cobra In The Clouds"
Re: P-38 dive flaps produce no drag
« Reply #22 on: March 14, 2014, 08:38:07 AM »
Worry about your luft iron leave my 38 alone. Practice in your birds and the 38s wont smoke ya
Logged
TBs Sounds 
39th FS "Cobra In The Clouds"NOSEART

Offline GScholz

  • Plutonium Member
  • *******
  • Posts: 8910
Re: P-38 dive flaps produce no drag
« Reply #23 on: March 14, 2014, 11:53:32 AM »
Funny. Adding drag to the dive flaps would aid the 38, not make it worse. If HTC changes it, you can thank me later.  :aok
Logged
"With the first link, the chain is forged. The first speech censored, the first thought forbidden, the first freedom denied, chains us all irrevocably."

Offline Sunka

  • Persona Non Grata
  • Silver Member
  • ****
  • Posts: 1774
      • http://www.327th.com/
Re: P-38 dive flaps produce no drag
« Reply #24 on: March 14, 2014, 11:55:49 AM »
Quote from: GScholz on March 14, 2014, 11:53:32 AM
Funny. Adding drag to the dive flaps would aid the 38, not make it worse. If HTC changes it, you can thank me later.  :aok
:aok
Logged
Someday the mountain might getem but the law nvr will. http://www.youtube.com/watch?v=SP5EkvOGMCs

Offline -ammo-

  • Platinum Member
  • ******
  • Posts: 5124
Re: P-38 dive flaps produce no drag
« Reply #25 on: March 14, 2014, 01:27:32 PM »
FTR,  I did a quick test in the P-47M.  Offline, 50% fuel, at 500" AGL.  The AC actually gained 1 MPH IAS after deploying dive flaps.  Something isn't quite right



Logged
Commanding Officer, 56 Fighter Group
Retired USAF - 1988 - 2011

Offline FLS

  • AH Training Corps
  • Plutonium Member
  • *******
  • Posts: 11617
      • Trainer's Website
Re: P-38 dive flaps produce no drag
« Reply #26 on: March 14, 2014, 01:54:44 PM »
Your true air speed didn't change.
Logged

Offline GScholz

  • Plutonium Member
  • *******
  • Posts: 8910
Re: P-38 dive flaps produce no drag
« Reply #27 on: March 14, 2014, 02:01:14 PM »
Quote from: FLS on March 14, 2014, 01:54:44 PM
Your true air speed didn't change.

Yes it did. Just not enough to make it 335. There are decimals there, we just don't get to see them.
Logged
"With the first link, the chain is forged. The first speech censored, the first thought forbidden, the first freedom denied, chains us all irrevocably."

Offline FLS

  • AH Training Corps
  • Plutonium Member
  • *******
  • Posts: 11617
      • Trainer's Website
Re: P-38 dive flaps produce no drag
« Reply #28 on: March 14, 2014, 02:06:30 PM »
Of course. What I meant was that the numbers showing the actual speed didn't change.
Logged

Offline Triton28

  • Gold Member
  • *****
  • Posts: 2248
Re: P-38 dive flaps produce no drag
« Reply #29 on: March 14, 2014, 03:01:34 PM »
This discussion is silly.  True purveyors of twin engine pwnage fly the J or the G.   :rock

The only time the L is useful is when you want to chase down 190's and out roll their rolling stick stir.   :old:
Logged
Fighting spirit one must have. Even if a man lacks some of the other qualifications, he can often make up for it in fighting spirit. -Robin Olds
      -AoM-

Pages: 1 [2] 3 4 5 ... 10   Go Up
« previous next »