P38

Discussion in 'Warbirds International' started by demian, Sep 13, 2010.

  1. -exec-

    -exec- FH Consultant

    Joined:
    Jan 29, 2000
    Messages:
    24,690
    Location:
    xUSSR
    [​IMG]


    [​IMG]

    horisontal bars are just at the level of pilot's eyes.

    kelly johnson should be shot in the ass.
     
  2. boa

    boa Well-Known Member

    Joined:
    Sep 27, 2010
    Messages:
    277
    I am not so sure Exe. I have problems to capture screens from video I have
    "roaring glory warbirds P38"... some photos I have seen show pilots almost touching top of canopy with their heads.. One thing Im sure of , is that line of view has everything to do with angle of canopy , for example, our p38 cockpit is too wide. When you see pilot in real cockpit , you will see he is capable of puting his head to the line of window, watching above it ...Our cockpit is too wide, so window is not so close to the pilot as it was in real life.. You can even find photos of pilot putting his head out of canopy to the side..

    Btw , Are you sure our wings are at right angle looking from cockpit?
     
    Last edited: Oct 20, 2010
  3. boa

    boa Well-Known Member

    Joined:
    Sep 27, 2010
    Messages:
    277
  4. boa

    boa Well-Known Member

    Joined:
    Sep 27, 2010
    Messages:
    277
    Raw image , 5 min of work , just to have a clue what I had in mind with this
    cockpit...

    [​IMG]
     
    Last edited: Oct 20, 2010
  5. boa

    boa Well-Known Member

    Joined:
    Sep 27, 2010
    Messages:
    277
    Or something like this...
    [​IMG]
     
  6. -ALW-

    -ALW- Well-Known Member

    Joined:
    Dec 1, 2001
    Messages:
    2,096
    Location:
    Minot, North Dakota, USA
    P-38 F, J & L Top Speed Ratings

    Level flight acceleration in the P-38 isn't very good in WB compared to
    other fighter aircraft with similar or less thrust ability. Even when
    considering aerodynamics, engine thrust, and of course, proven data. This is proven while in single engine operation, climb is very difficult in the current WBFH version.
    Here are testing results with comparable documented data I found online.

    Testing location: WarBirds FreeHost arena
    Started Fuel setting: 100%
    Throttle setting 100% (Note: Real Life Throttle setting of 100% = 3,000 RPM)
    WEP: None
    Auto-trim, level flight, 5-10, minutes duration each altitude setting.

    ------------------------------------
    Top speeds as tested these past weeks along with documented test results
    from Lockheed and USAF:
    -------------------------------------



    P-38F-1Lo.........................................P-38F (Service Delivery Mar 1942)
    (WBFH Documented)...................Documented Military Power 3,000 RPM)
    Feet.................MPH..........................................MPH
    Sea Lvl....297 IAS / 297 TAS.................................325 TAS
    5,000.......301 IAS / 365 TAS..................316 IAS / 345 TAS
    10,000.....398 IAS / 349 TAS..................312 IAS / 359 TAS
    15,000.....289 IAS / 365 TAS..................305 IAS / 380 TAS
    20,000.....261 IAS / 261 TAS..................279 IAS / 392 TAS
    25,000.....249 IAS / 373 TAS..................248 IAS / 384 TAS
    27,000.....241 IAS / 375 TAS.................................403 TAS (Highest Rated Speed)
    30,000.....217 IAS / 378 TAS.................................401 TAS
    35,000.....202 IAS / 362 TAS.................................378 TAS

    References:
    http://www.wwiiaircraftperformance.org/p-38/p-38f-lockheed-rep2338.jpg
    http://www.wwiiaircraftperformance.org/p-38/p-38f-tactical-charts.pdf



    P-38J-15Lo.........................................P-38J (Service Delivery Sep 1943)
    (WBFH Documented).....................(Documented Military Power 3,000 RPM)

    Feet................MPH............................................MPH
    Seal Lvl...323 IAS / 323 TAS....................345 TAS
    5,000......319 IAS / 344 TAS....................362 TAS
    10,000....310 IAS / 362 TAS....................368 TAS
    15,000....302 IAS / 382 TAS....................394 TAS
    20,000....290 IAS / 410 TAS....................409 TAS
    25,000....271 IAS / 407 TAS....................420 TAS
    25,800....277 IAS / 420 TAS....................422 TAS (Highest Rated Speed)
    30,000....253 IAS / 417 TAS....................413 TAS
    35,000....232 IAS / 415 TAS....................400 TAS

    References
    http://www.wwiiaircraftperformance.org/p-38/p-38-67869.html
    http://www.joebaugher.com/usaf_fighters/p38_13.html



    P-38L-5Lo............................................P-38L (Service Delivery Jun 1944)
    (WBFH Documented).....................(Documented Military Power 3,000 RPM)

    Feet................MPH..............................................................MPH
    Sea Lvl..323 IAS / 323 TAS.....................................331 TAS, +WEP 342
    5,000.....320 IAS / 345 TAS.....................................347 TAS +WEP 357
    10,000...311 IAS / 363 TAS.....................................363 TAS +WEP 373
    15,000...303 IAS / 383 TAS.....................................378 TAS +WEP 388
    20,000...291 IAS / 401 TAS.....................................392 TAS +WEP 402
    25,000...276 IAS / 413 TAS.....................................405 TAS +WEP 415
    26,200...272 IAS / 417 TAS.....................................406 TAS +WEP 416
    30,000...253 IAS / 415 TAS.....................................402 TAS +WEP 412
    35,000...223 IAS / 401 TAS.....................................379 TAS +WEP 389

    References:
    http://www.wwiiaircraftperformance.org/p-38/p-38l-25092-level.jpg
    http://www.joebaugher.com/usaf_fighters/p38_15.html


    ---------------------------------------------------------------------------------------
    Other documention...
    http://www.joebaugher.com/usaf_fighters/p38.html
    http://www.wwiiaircraftperformance.org/p-38/p-38.html

    Operators manual:
    http://books.google.com/books?id=qh...e=gbs_selected_pages&cad=3#v=onepage&q&f=true

    Release dates:
    http://www.acepilots.com/planes/p38_lightning.html

    Great resource of USAF WWII aircraft...
    http://www.joebaugher.com/usaf_fighters/

    WWII aircraft performance site....
    http://www.wwiiaircraftperformance.org/

    Also, is it possible to entertain the idea of adding the G variant for a total of 4 P-38s? It was put in service during Jul 1942 totaling 1,082 in production and is a big improvement over the F variant but, not quite like the later J.
     
  7. -exec-

    -exec- FH Consultant

    Joined:
    Jan 29, 2000
    Messages:
    24,690
    Location:
    xUSSR
    squadron number?
     
  8. -ALW-

    -ALW- Well-Known Member

    Joined:
    Dec 1, 2001
    Messages:
    2,096
    Location:
    Minot, North Dakota, USA
    Thing is, a pilot could easily move to see what was obstructed. Also have to take into effect peripheral vision allows greater visual range. BTW, what's Kelly Johnson have to do with this?
     
  9. mumble

    mumble Well-Known Member

    Joined:
    Jan 12, 2007
    Messages:
    1,315
    Location:
    in a bar
  10. -ALW-

    -ALW- Well-Known Member

    Joined:
    Dec 1, 2001
    Messages:
    2,096
    Location:
    Minot, North Dakota, USA
    Do you have these parameters already?
     
  11. mumble

    mumble Well-Known Member

    Joined:
    Jan 12, 2007
    Messages:
    1,315
    Location:
    in a bar
    Send completed form to exec as PM and duplicate on this thread pls. That way we know someone got the information. Maybe point a PM of that in fas direction as well.
     
  12. -exec-

    -exec- FH Consultant

    Joined:
    Jan 29, 2000
    Messages:
    24,690
    Location:
    xUSSR
    my box is overcrowded.
    write publicly.
     
  13. mumble

    mumble Well-Known Member

    Joined:
    Jan 12, 2007
    Messages:
    1,315
    Location:
    in a bar
  14. -exec-

    -exec- FH Consultant

    Joined:
    Jan 29, 2000
    Messages:
    24,690
    Location:
    xUSSR
    neg. don't see indicated mistakes of fhl
     
  15. mumble

    mumble Well-Known Member

    Joined:
    Jan 12, 2007
    Messages:
    1,315
    Location:
    in a bar
  16. mumble

    mumble Well-Known Member

    Joined:
    Jan 12, 2007
    Messages:
    1,315
    Location:
    in a bar
    Re: P-38 F, J & L Top Speed Ratings

    Moved to new thread.
     
    Last edited: Oct 23, 2010
  17. boa

    boa Well-Known Member

    Joined:
    Sep 27, 2010
    Messages:
    277
    Work is in progress. You will have data in form you requested.
    Just be patient pls, you know it takes much time for us to collect data on all planes.
    It is actually My fault, I asked some players to help me conduct tests on some specific planes in order to help Fas.
    I decided to fill in exact same form you want, with data of Yak-3, Yak ser 111,
    Lagg3, I153. I do test P38 too , but I have sudden desire to show also data for low alt russian planes. Both historical and from fhl. I do this work with so much love , so ugly P38 somehow comes after pleasure.Stay tunned to this thread, and ty for showing us proper form of bug-reporting.(I forgot to say that earlier)
     
  18. mumble

    mumble Well-Known Member

    Joined:
    Jan 12, 2007
    Messages:
    1,315
    Location:
    in a bar
    Post deleted.
     
    Last edited: Oct 23, 2010
  19. -ALW-

    -ALW- Well-Known Member

    Joined:
    Dec 1, 2001
    Messages:
    2,096
    Location:
    Minot, North Dakota, USA
    Virtually everything about the FH P38 is a mistake, really.

    I don't understand programming or the needed data other than rudimentary testing performed before computers. It was 1940's technology. I can go on what actual pilots say who have actually flown the aircraft. I wish the information like horse power, weight, etc could be used to create accurate function of the aircraft.

    Examples:
    ----------------------------------------------------------------------------------
    pitch control: at low speeds <describe error>, at medium speeds <describe error>, at hight speed <describe error>

    What kind of information do you need here? What do you mean by "pitch control"? numbers? behaviors? thoughts?
    ----------------------------------------------------------------------------------
    deap loop parameters - speed, radius, time: <describe error>

    What is a "deap loop" ?
    ----------------------------------------------------------------------------------
    roll control: at low speeds <describe error>, at medium speeds <describe error>, at hight speed <describe error>

    Roll control, as in what we get on FH vs documented RL data? I'll try to do that.
    ----------------------------------------------------------------------------------
    roll speed: at low speeds <describe error>, at medium speeds <describe error>, at hight speed <describe error>

    Is this testing I need to perform on FH and provide my own opinion or compare with data? I can do that.
    ----------------------------------------------------------------------------------
    climb time to alt: 3000ft, 6000ft, 9000ft, 12000ft, 15000ft, 18000ft, 21000ft - <describe error>

    I can get that information. Error would be the poor performance of the FH version vs real documented data? I can do that.
    ----------------------------------------------------------------------------------
    stall speed: without flaps <describe error>, with flaps <describe error>

    FH data vs documented data? I can do that but, the stall behavior isn't quite what it should be in my opinion.
    ----------------------------------------------------------------------------------
     
  20. -exec-

    -exec- FH Consultant

    Joined:
    Jan 29, 2000
    Messages:
    24,690
    Location:
    xUSSR
    dead loop is a yankee name of nesterov's loop. they want to get rid of russian lastname.

    controls are mostly subjective data, probably from memoires, something like "poor young pilots with those ki-48: they dived to ships optimistically just to find that controls are compressed at 500km/h and they cannot adjust their planes to targets. they mostly fallen into sea without any use". or "i dived my stang to those fokkers from 25kft and my plane began to shake just like pneumatic hammer at 500mph. no way i could continue my attack or aiming, i was quite busy pulling up my plane. i managed to level it up at 1000ft only."

    but if you find more strict data like "tested f4u-1 vs 190a-5/u8 and found that enter into roll is almost equal, both quicker than f6f-3" it would be excellent