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View Full Version : P-38 Roll Rate Test. Please help.



Gibbage1
03-04-2004, 01:01 AM
OK. I found a small bug in the P-38 just before it went gold, but I could not narrow it down for Oleg to fix it. With the comunity's help, I hope to be able to give Oleg the data he needs to fix it.

On my system, I get a low roll rate on the P-38 J and L models. But on some other beta testers and on all of Oleg's computers they get about twice the roll rate! So here is a test I want you guys to perform for me.

Take a P-38 L into QMB at 1000M at default loadout and 25% fuel. Accellerate to 400KPH, and roll 360%. Time it and post your results and PC specs including hardware, OS, joystick and drivers.

I get a 7.5 second roll rate myself, and some are getting 4.5 to 5 second roll rate!

As a sample, here is my system.

Edit: POST YOUR SYSTEM SPECS WITH YOUR RESULT

Athlon 2500+
1024MB of PC-400 DDR RAM on NForce 2 MB.
Radeon 9800 Pro with Cat 4.1 drivers
Hercules Sound Fortismo 7.1
Logitech Extreme 3D Pro USB joystick (I also tried with old MS Sidewinder and Sitech X45 and got same results).
Windows XP Home with SP1

[This message was edited by Tully__ on Thu March 04 2004 at 04:15 AM.]

Gibbage1
03-04-2004, 01:01 AM
OK. I found a small bug in the P-38 just before it went gold, but I could not narrow it down for Oleg to fix it. With the comunity's help, I hope to be able to give Oleg the data he needs to fix it.

On my system, I get a low roll rate on the P-38 J and L models. But on some other beta testers and on all of Oleg's computers they get about twice the roll rate! So here is a test I want you guys to perform for me.

Take a P-38 L into QMB at 1000M at default loadout and 25% fuel. Accellerate to 400KPH, and roll 360%. Time it and post your results and PC specs including hardware, OS, joystick and drivers.

I get a 7.5 second roll rate myself, and some are getting 4.5 to 5 second roll rate!

As a sample, here is my system.

Edit: POST YOUR SYSTEM SPECS WITH YOUR RESULT

Athlon 2500+
1024MB of PC-400 DDR RAM on NForce 2 MB.
Radeon 9800 Pro with Cat 4.1 drivers
Hercules Sound Fortismo 7.1
Logitech Extreme 3D Pro USB joystick (I also tried with old MS Sidewinder and Sitech X45 and got same results).
Windows XP Home with SP1

[This message was edited by Tully__ on Thu March 04 2004 at 04:15 AM.]

LuftLuver
03-04-2004, 01:52 AM
BUMP!

Will test on my Athlon 1.3ghz tomorrow eve.

Korolov
03-04-2004, 02:11 AM
Get 5 seconds here.

http://www.mechmodels.com/images/newsig1.jpg

buz13
03-04-2004, 03:22 AM
7.5 seconds -
CH fltstick pro with CH rudder peddals
Athlon 2.2gig 1meg ram, Asus A7V333 MB with onboard sound. G4 4400 129 meg. Nvidia 53.04

RealHondo
03-04-2004, 04:15 AM
about the 400 kph. shall we hold 400 kph before the turn and lose speed while turning?

Auf SimHQ unterwegs als Hondo

http://public.rz.fh-wolfenbuettel.de/~himstedm/extern/JG54.gif

Skalgrim
03-04-2004, 04:26 AM
think, that the people, that get 5sec use rudder

[This message was edited by Skalgrim on Thu March 04 2004 at 04:24 AM.]

RealHondo
03-04-2004, 04:56 AM
didn't test it yet, but why shouldn't we use rudder? did oleg use rudder?

Auf SimHQ unterwegs als Hondo

http://public.rz.fh-wolfenbuettel.de/~himstedm/extern/JG54.gif

03-04-2004, 05:02 AM
P-38J: 4.7 seconds
P-38L: 5.2 seconds

--------------
Intel PentiumIV 1.7ghz 512DDR
Suma GeForce4 MX440

Tully__
03-04-2004, 05:15 AM
Bump

=================================================



Salut
Tully

Skalgrim
03-04-2004, 05:20 AM
mean only, when you will compare the rollrate, must all use same precondition

is big differ by rollrate with rudder or without

IAFS_Painter
03-04-2004, 06:38 AM
Suggest you state whether you did use rudder or did not use rudder.

Wish I could help, but the test will be complete by the time I get a copy of AEP (UK based)

http://www.robert-stuart.me.uk/il2/signature/paint_sig_003.jpg
il2airracing.com (http://www.il2airracing.com) Painter's Pages (http://www.robert-stuart.me.uk/il2)

I've given up correcting my own spelling
Unless I've corrected it here

WWTaco
03-04-2004, 07:03 AM
38J- 4.6 with rudder, 6.8 without
38L- 5.2 with rudder, 7.3 without

2.8 pent 4 with HT 800mhz fs bus.
9800 ati 128mb
1 gig ram dual channel
cougar hotas and throt, Thrustmaster eltie pedals.
XP with SP-1
standard dell sound

Hey you guys using combat flaps in these turns also???? and are you leaving the throt alone or are you backing off the inboard and accelerating the outboard engines??

anyhoo

S!

Taco

BaldieJr
03-04-2004, 07:06 AM
I'm not at home, so I can't test, but I would like to comment on damage in the L.

Aeleron controls snap if you look at if funny.

I am fairly sure that I have a broken model, as roll is slug-like, and it climbs like a brick. I still love its whopping firepower though.

Anyways: I have an AMD64 and a gig of ram.



______ _____
(, / ) /) /) , (, /
/---( _ // _(/ _ / __ ,""""]
+----/ ____)(_(_(/_(_(__(__(/____/__/ (__--------,' /---+
| / ( / ,' NR / |
|(_/ ..-""``"'-._ (_/ __,' 42 _/ |
+-.-"" "-..,____________/7,.--"" __]-----+

porcupine1
03-04-2004, 07:38 AM
5 seconds here gib! could the deferances in pc have something to do with it? and if so is this why some say the p-47 is ok and some dont???

Freycinet
03-04-2004, 07:39 AM
Guys, it's not so difficult: post your COMPUTER AND JOYSTICK SPECS as Gibbage asked you to do, otherwise your results are

COMPLETELY

USELESS!

Good idea: reply to this thread by replying to gibbage's posting, that way you'll remember what you must post.

(Can't do it myself, I'm a euro and so haven't got it yet)

BaldieJr
03-04-2004, 07:43 AM
Originally posted by porcupine1:
5 seconds here gib! could the deferances in pc have something to do with it? and if so is this why some say the p-47 is ok and some dont???

Gib said in another thread that it may be a bug that only shows up on AMD machines.

I've a feeling that this is true, and that it effects the roll-rate of other aircraft.

Signature:
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p1ngu666
03-04-2004, 08:43 AM
also theres no slow to roll then good is there?

http://www.pingu666.modded.me.uk/mysig3.jpg

ZG77_Nagual
03-04-2004, 09:11 AM
You guys - the whole object is to INCLUDE YOUR SYSTEM SPECS and With or without rudder.

I'll do this as soon as ubi send me my freakin aep.

PS - Gib - thanks for your constructive approach - you're a badly needed role model (no pun intended :))

03-04-2004, 11:10 AM
Okaaay..

P-38J 4.6 without rudder
P-38L 5.2 without rudder

Stick settings at:
5 10 15 25 35 45 60 75 90 100

Saitek Cyborg3D Gold

System as mentioned

Wilburnator
03-04-2004, 01:21 PM
It takes just over 5 seconds on my machine, no rudder.

Pentium 4 2.8
Windows XP home
MSI 865 Neo2 mb
1 gig PC2700 RAM
ATI Radeon 9800 128 mb
Maddog Entertainer 7.1 DSP sound card
Saitek X-36 with CH Pro Pedals

I use the default stick settings...

T_O_A_D
03-04-2004, 01:39 PM
You might want their conf settings for their joystick too Gibbage. It makes a difference.

It was nice seing ya on the VFCHost last night M8!

I'm getting 3.88 or so it its all up to interpetations so here is a P-38j ntrk http://home.mchsi.com/~131st-vfw/Toad_P-38_roll.rar

Here is P-38L I'm getting 4.2 or so

here is ntrk http://home.mchsi.com/~131st-vfw/Toad_P-38L_Roll.rar

I used no rudder on both accounts

Asus P4p800 Deluxe
Pent 2.4 HT
1 gig ram
TI4600
100 gig WD HD
TI4600
Audigy2
X-45
Ch USb Rudder
Win XP pro



Have you checked your Private Topics recently? (http://forums.ubi.com/eve/forums?a=ugtpc&s=400102)
131st_Toad's Squad link (http://www.geocities.com/vfw_131st/)
My TrackIR fix, Read the whole thread (http://forums.ubi.com/eve/forums?q=Y&a=tpc&s=400102&f=49310655&m=15310285&p=1)
2.11 drivers (http://home.mchsi.com/~131st-vfw/NaturalPoint_trackIR_2_11.exe)
http://home.mchsi.com/~131st_vfw/T_O_A_D.jpg

[This message was edited by T_O_A_D on Thu March 04 2004 at 05:39 PM.]

Pain....
03-04-2004, 02:22 PM
P-38J average of 4.8 - 5 seconds
P-38L average of 5 - 5.2 seconds

AMD Athlon 2000+ XP
A7V8X Mobo
1 gig DDR ram at 333mhz
GF4 TI-4800SE
Windows XP Pro
Thrustmaster Cougar ( Hall Sensor Mod ) and Ch Pro Pedals


good to see somebody is investigating this... the P-38 really feels so off now.

|CoB|_Spectre
03-04-2004, 03:23 PM
[QUOTE]Originally posted by Gibbage1:
OK. I found a small bug in the P-38 just before it went gold, but I could not narrow it down for Oleg to fix it. With the comunity's help, I hope to be able to give Oleg the data he needs to fix it.

On my system, I get a low roll rate on the P-38 J and L models. But on some other beta testers and on all of Oleg's computers they get about twice the roll rate! So here is a test I want you guys to perform for me.

Take a P-38 L into QMB at 1000M at default loadout and 25% fuel. Accellerate to 400KPH, and roll 360%. Time it and post your results and PC specs including hardware, OS, joystick and drivers.

I get a 7.5 second roll rate myself, and some are getting 4.5 to 5 second roll rate!

As a sample, here is my system.

Edit: POST YOUR SYSTEM SPECS WITH YOUR RESULT

Athlon 2500+
1024MB of PC-400 DDR RAM on NForce 2 MB.
Radeon 9800 Pro with Cat 4.1 drivers
Hercules Sound Fortismo 7.1
Logitech Extreme 3D Pro USB joystick (I also tried with old MS Sidewinder and Sitech X45 and got same results).
Windows XP Home with SP1
__________________________________________

I ran the test as follows:
25% fuel
400Km/hr indicated (trimmed for level flight)
61% power (closest I could get with throttle)

I started stopwatch simultaneously with stick deflection in direction of roll, stopped watch when horizon had rotated 360 degrees (no attempt to maintain pitch on horizon). Rolls were with and without rudder, to the left and the right, sampled six times and averaged each direction. Results:

J model: Left w/ rudder 3.98 sec
Right w/ rudder 4.02 sec
Left w/o rudder 4.72 sec
Right w/0 rudder 4.48 sec

L model: Left w/ rudder 4.08 sec
Right w/ rudder 4.82 sec
Left w/o rudder 5.23 sec
Right w/o rudder 5.68 sec

(consistently faster roll to left could be due to stick calibration as WinXP gameport always seems to show slightly less deflection to right than to left in test box)

AMD Athlon XP1800+
768mb PC2100 DDR on NForce2 mobo
Radeon 9700 Pro AIW card w/ Cat. 4.1 drivers
SB Live soundcard
CH Products (gameport) F-16 Combat Stick, Pro Throttle, Pro Pedals
Windows XP Profession w/ SP1

Gibbage1
03-04-2004, 04:42 PM
Very interesting. Only few people are effected by the 7 second roll bug it seems.

Also what seams interesting is that the J is rolling better then the L? It should be the other way around. I will make sure Oleg reads this thread, but please keep posting the results.

LEXX_Luthor
03-04-2004, 04:59 PM
P~38~J .... just less than 4 seconds
P~38~L .... ~4 seconds

No rudder


Athalon 1700+
WinXP Homely fresh re~install two days ago (unkown SPs?)
Saitek Cyborg Graphite joystick (no software included)
256MB 133Mhz SDRAM

Roll and Pitch ----> 0 5 10 15 20 30 40 60 80 100
Deadband and Filtering all Zero

WhiskeyRiver
03-04-2004, 05:37 PM
why is the J rolling faster? the L should roll faster even at low speeds. The low stick/yoke forces allowed the contols to be deflected faster(less force required to move the stick from neutral to max deflection) than non boosted -38's. This should give a faster roll shouldn't it>

To kill me you've got to hit the heart Ramon--Clint F*cking Eastwood

Kneenibbler
03-04-2004, 06:04 PM
5 secs for me

P4 3.2 gHz
1024 ram on Asus P4P800
Asus Radeon 9800xt 256mb Cat 3.11 drivers
SB Audigy 2
Logitec Wingman extreme 3d
XP pro SP1

boohaa
03-04-2004, 06:11 PM
Yes,the L should roll faster as it says in the aircraft viewer.It states that the L got boosted airlerons for more manueverability.

I was wondering if the guys who have slower roll rates maybe have the filter on that axis set high.It can make any plane roll like a 747http://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif

WhiskeyRiver
03-04-2004, 06:27 PM
has anyone tried using differential throttle, i.e. "blipping" the inboard engine, to make the -38 roll faster?

To kill me you've got to hit the heart Ramon--Clint F*cking Eastwood

GR142_Astro
03-04-2004, 08:05 PM
P38L

No rudder-> 4.5 seconds

With rudder-> 4 seconds

Athlon Thunderbird 1.3ghz (surely an average machine)

____________________________

"If Adolf Hitler flew in today, they'd send a limosine anyway." ~TheClash~

VW-IceFire
03-04-2004, 08:12 PM
Not to deflect the issue but perhaps a certain other late war USAAF fighter has a similar bug and that we should run a similar set of tests with as many people as possible? See what the stats tell us...

http://home.cogeco.ca/~cczerneda/sigs/temp_sig1.jpg
RCAF 412 Falcon Squadron - "Swift to Avenge"

rbstr44
03-04-2004, 08:22 PM
The Crimean map should probably be used for consistency. It represents the closest simulation of the International Standard Atmosphere (ISA) model.

See: http://forums.ubi.com/eve/forums?q=Y&a=tpc&s=400102&f=63110913&m=662104452&p=1

PBNA-Flanker
03-04-2004, 08:23 PM
P-38L - 4.7 Seconds
P-38J - 4.0 Seconds

Athlon 1800
ATI 9600
Logitech Freedom 2.4

PBNA-Flanker
03-04-2004, 08:27 PM
My SquadMate, PBNA-Golden Eagle gets 5 seconds in both (approx)

Slammin_
03-04-2004, 09:28 PM
P38-J 4.5 secs - no rudder
P38-L 5 secs - no rudder

P4 2.8@3.37
1024MB of PC-4000 DDR RAM on Abit Max3 MB.
Radeon 9800 XT 256mb @427core/402 mem with Cat 4.1 drivers
Creative Labs Audigy
Hotas Cougar. No axis curves set in stick software. Game axis curves left at default from install.
Windows XP Pro with SP1


I could try again without overclocking. My fsb is at 240.5, bus speed 962Mhz. I'm not a coder but when I think of roll-rate for a FM, I would think the programmer would attempt to find a standard clock source that works universally. This kind of reminds me of a problem you would see if a clock tick were based on the a/c power source - 60hz vs 50hz? Just thinking out loud.

WWTaco
03-05-2004, 09:27 AM
Been backing inboard engines in an out at will,, really improves turn rate and roll it seems.

now to put it on a slider hehe

S!

Taco

VW-IceFire
03-05-2004, 12:52 PM
Still no AEP here but it sort of looks like it happens more on AMD systems...do others think that as well?

Something to do with how the x86 architecture and registers work on an AMD?

http://home.cogeco.ca/~cczerneda/sigs/temp_sig1.jpg
RCAF 412 Falcon Squadron - "Swift to Avenge"

ZG77_Nagual
03-07-2004, 08:21 AM
I'm in the fast range - Pretty much the same as Toad above. Under 4 for the J, just over for the L.

Abit IC7
P4@3.2gig
2 gig ddr400
XP pro

Heavy_Weather
03-07-2004, 08:27 AM
well i havent got the game yet, but assumed that the roll rate would be like that of the P-47's or worse.

"The wise man is often the man who plays dumb."

Redwolf32
03-07-2004, 10:24 PM
Athlon 2400+
Geforce4 ti 4200 (128Mb)
Logitech Wingman Interceptor
WinXP Pro

P38-L 5 sec. no rudder. http://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif

BS87
03-07-2004, 10:42 PM
Heh funny how the model without boosted ailerons rolls faster

Gwalker70
03-08-2004, 02:28 AM
I guess I have the bad setup 7,5 sec here ASus Nvida mb 400 ddr 1 gig ram Barton 2.5 cpu old school MS sidwinder pro with CH pro throttle USB Hotas. is this problem JUSt with P38 or all planes?

Art-J
03-08-2004, 02:48 AM
I am one of the "Athlon guys" (XP 2400+), but roll rate seems to be good here. Something Between 4 and 4.5 secs for both J and L versions. No rudder
Graphics: GF2 MX (Omega drivers), joy: Logitech Wingman Extreme.

http://server5.uploadit.org/files/Haribo-Zeke_small_3_txt.jpg

LEXX_Luthor
03-08-2004, 03:04 AM
haha the Pentium FPU must be porked, again. http://ubbxforums.ubi.com/images/smiley/16x16_smiley-very-happy.gif