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02-10-2004, 06:44 AM
is 2 slow, in objects view it says that it can get to max speed in level fly without overheating and that top speed at sea level is 575-600km/h I was able to make it fly max 540 with 110% trottle.........grr can we plz have it fixed............og maybe I'm wrong?

02-10-2004, 06:44 AM
is 2 slow, in objects view it says that it can get to max speed in level fly without overheating and that top speed at sea level is 575-600km/h I was able to make it fly max 540 with 110% trottle.........grr can we plz have it fixed............og maybe I'm wrong?

AlGroover
02-10-2004, 07:00 AM
Maybe it's the calibration of the Russian airspeed indicator that's accurately modelled.

Stalker58
02-10-2004, 07:08 AM
Yak 9U sufferd oil overheating in 1944 production series. It was't curred until mid 45.

Altitude, speed, manoeuvre and.... CRASH!

02-10-2004, 07:13 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Stalker58:
Yak 9U sufferd oil overheating in 1944 production series. It was't curred until mid 45.

Altitude, speed, manoeuvre and.... CRASH!<HR></BLOCKQUOTE>


maybe, but what does it have to do with speed? http://ubbxforums.ubi.com/images/smiley/blink.gif

DangerForward
02-10-2004, 07:29 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Wolf4ever:
is 2 slow, in objects view it says that it can get to max speed in level fly without overheating and that top speed at sea level is 575-600km/h I was able to make it fly max 540 with 110% trottle.........grr can we plz have it fixed............og maybe I'm wrong?<HR></BLOCKQUOTE>

You did 540 True airspeed right? Or was it indicated?

DangerForward

Slush69
02-10-2004, 07:32 AM
At sealevel true and indicated airspeed is practically the same.

cheers/slush

http://www.wilcks.dk/crap/Eurotrolls.gif

robban75
02-10-2004, 07:36 AM
Only the prototype was able to reach 600km/h at sealevel. Serial produced machines managed 575km/h. However 540km/h is way too slow, this needs to be checked.
With a higher topspeed and better climbrate the Yak-9U was in many ways a superior machine compared to the Yak-3. I can't remember when I last saw a 9U online. It's a pitty. http://ubbxforums.ubi.com/images/smiley/16x16_smiley-indifferent.gif

http://members.chello.se/unni/Dora-9-3.JPG

When it comes to aircombat, I'd rather be lucky than good any day!

02-10-2004, 07:46 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by robban75:
Only the prototype was able to reach 600km/h at sealevel. Serial produced machines managed 575km/h. However 540km/h is way too slow, this needs to be checked.
With a higher topspeed and better climbrate the Yak-9U was in many ways a superior machine compared to the Yak-3. I can't remember when I last saw a 9U online. It's a pitty. http://ubbxforums.ubi.com/images/smiley/16x16_smiley-indifferent.gif

http://members.chello.se/unni/Dora-9-3.JPG

When it comes to aircombat, I'd rather be lucky than good any day!<HR></BLOCKQUOTE>

climbrate??? http://ubbxforums.ubi.com/images/smiley/16x16_smiley-surprised.gif lol its climb wors then yak 3..lol 2bad..

Fillmore
02-10-2004, 09:36 AM
TAS and IAS are NOT the same at sea level in this game. It depends what map you use and can be different by a significant amount.

02-10-2004, 09:42 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Fillmore:
TAS and IAS are NOT the same at sea level in this game. It depends what map you use and can be different by a significant amount.<HR></BLOCKQUOTE>
0 og 100 meters it doesnt realy matters if plane is 45 km/h 2 slow

02-10-2004, 09:43 AM
and it was above the sea.....

02-10-2004, 09:43 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Wolf4ever:
and it was above the sea.....<HR></BLOCKQUOTE>


5 meters max

DangerForward
02-10-2004, 09:48 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Wolf4ever:
is 2 slow, in objects view it says that it can get to max speed in level fly without overheating and that top speed at sea level is 575-600km/h I was able to make it fly max 540 with 110% trottle.........grr can we plz have it fixed............og maybe I'm wrong?<HR></BLOCKQUOTE>

I got 576 TAS at around 62 meters with 110% throttle, rad closed. I didn't wait for it to overheat. Crimea map...

DangerForward

DangerForward
02-10-2004, 09:55 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by robban75:
With a higher topspeed and better climbrate the Yak-9U was in many ways a superior machine compared to the Yak-3. I can't remember when I last saw a 9U online. It's a pitty. http://ubbxforums.ubi.com/images/smiley/16x16_smiley-indifferent.gif
<HR></BLOCKQUOTE>

There's a couple of maps on GreaterGreen that use them, I bagged one last night with a D9 '44.

One of the interesting things I've noticed about the 9U is that it seems to have a complex damage model while I don't think other yaks do. So far it's the only yak type I've seen get the "loses controls" message.

DangerForward

02-10-2004, 10:01 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by DangerForward:
Originally posted by Wolf4ever:
is 2 slow, in objects view it says that it can get to max speed in level fly without overheating and that top speed at sea level is 575-600km/h I was able to make it fly max 540 with 110% trottle.........grr can we plz have it fixed............og maybe I'm wrong?<HR></BLOCKQUOTE>

I got 576 TAS at around 62 meters with 110% throttle, rad closed. I didn't wait for it to overheat. Crimea map...

DangerForward


was u flying strait, without shallw dives?http://ubbxforums.ubi.com/infopop/emoticons/icon_wink.gif

DangerForward
02-10-2004, 11:34 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Wolf4ever:
was u flying strait, without shallw dives?http://ubbxforums.ubi.com/infopop/emoticons/icon_wink.gif<HR></BLOCKQUOTE>

Yep, had my eyes on the alt and speed. I flew at round 60 meters so I don't have to worry about ditching. It's a rough test, but seems to work.

DangerForward

02-10-2004, 12:04 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by DangerForward:
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Wolf4ever:
was u flying strait, without shallw dives?http://ubbxforums.ubi.com/infopop/emoticons/icon_wink.gif<HR></BLOCKQUOTE>

Yep, had my eyes on the alt and speed. I flew at round 60 meters so I don't have to worry about ditching. It's a rough test, but seems to work.

DangerForward<HR></BLOCKQUOTE>



ok.........then its just me who cant make that thing go faste then 540http://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif but ok http://ubbxforums.ubi.com/images/smiley/mockface.gif

kyrule2
02-10-2004, 12:38 PM
Just did a quick test and I got 568km/h at 6m. I only did one run and if anything it would be faster. I'll try again later.

I fly on multiplayer map and just fly right off the bottom, that way ground is completely flat and you can hold your plane a few meters off the ground easily. Remember to close radiator.

The Yak-9U is one of the best looking planes of WWII IMHO, I saw a live demonstration and it was impressive. The 9U should be one of the dominant planes in the game going by performance, it just doesn't seem to work out that way. I think more people choose the Yak-3 because the visibility is so much better.

http://www.brooksart.com/Icewarriors.jpg

3./JG51_Hunde
http://www.jg51.com/

Zen--
02-10-2004, 12:41 PM
Correct me if I'm wrong, but wasn't the 9 series in greater service numbers than the 3?

If I need to be corrected, the proper way is to say "You is wrong. Be sure" please.


Thanks in advance if that is the case

-Zen-
Formerly TX-Zen

kyrule2
02-10-2004, 12:45 PM
Zen, the Yak-9 was the most produced Yak but the 9U had some teething problems that didn't get sorted out until later so it was not as widely used as the Yak-3. The Yak-9 and Yak-9D were used extensively.

http://www.brooksart.com/Icewarriors.jpg

3./JG51_Hunde
http://www.jg51.com/

Zen--
02-10-2004, 12:48 PM
So the Yak 3 was in greater service numbers then? That would mean that I was effectively wrong and you didn't say "You is wrong. Be sure"

Lol


Thanks, I thought the 9 series had higher production.

-Zen-
Formerly TX-Zen

kyrule2
02-10-2004, 12:57 PM
Zen, I only use "you is wrong, be sure" when it is something really important that can affect FB and I have been provided sufficient evidence to the contrary. http://ubbxforums.ubi.com/infopop/emoticons/icon_wink.gif

http://www.brooksart.com/Icewarriors.jpg

3./JG51_Hunde
http://www.jg51.com/

Platypus_1.JaVA
02-10-2004, 01:01 PM
TAS or IAS?

1 Judge not, that ye be not judged.
2 For with what judgment ye judge,
ye shall be judged: and with what
measure ye mete, it shall be measured
to you again.

http://server5.uploadit.org/files/JaVAPlatypus-1java.JPG (http://www.1java.org)

kyrule2
02-10-2004, 01:03 PM
TAS for my test Platypus, cockpit off at 6 meters.

http://www.brooksart.com/Icewarriors.jpg

3./JG51_Hunde
http://www.jg51.com/

kyrule2
02-10-2004, 01:10 PM
Just did another and got 567km/h TAS. The IAS seemed to read about 540km/h and this was at around 5 meters.

http://www.brooksart.com/Icewarriors.jpg

3./JG51_Hunde
http://www.jg51.com/

tttiger
02-10-2004, 01:25 PM
Somewhere waaaay back there I think Ky nailed the reason it isn't used very much: The visibility is awful in the Yak-9U. Between all the metal and that thick armored glass, it's very hard to track an enemy in a fight. The Yak-3 has a much more user friendly canopy.

Were it not for the visbility,I would pick it over the Yak-3. The 9U is not quite as agile but quite a bit tougher and survives damage better. I've never tried to test it but my impression has been speed is highly comperable.

As to the speed, etc. It would be nice if someone standardized all the tests and testing methods. In WarBirds, Grant Iddons was the acknowledged guru of FM testing and he published his results on his website (still does, I think, haven't flown WB for a couple years). I can't recall anyone complaining about his test methods; the import thing is that they were the same for all planes.

Any one wanna volunter for the post of FM Guru? http://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif

ttt

"I want the one that kills the best with the least amount of risk to me"

-- Chuck Yeager describing "The Best Airplane."

02-10-2004, 02:06 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by kyrule2:
Just did a quick test and I got 568km/h at 6m. I only did one run and if anything it would be faster. I'll try again later.

I fly on multiplayer map and just fly right off the bottom, that way ground is completely flat and you can hold your plane a few meters off the ground easily. Remember to close radiator.

The Yak-9U is one of the best looking planes of WWII IMHO, I saw a live demonstration and it was impressive. The 9U should be one of the dominant planes in the game going by performance, it just doesn't seem to work out that way. I think more people choose the Yak-3 because the visibility is so much better.

http://www.brooksart.com/Icewarriors.jpg

3./JG51_Hunde
http://www.jg51.com/<HR></BLOCKQUOTE>


did u used prop. pitch? what did u had it at?

I tryed everything and still cant get it over 540 545........http://ubbxforums.ubi.com/infopop/emoticons/icon_frown.gif but in object view it say it should be doing max speed in normal fly...doesnt it means with 100% trottle? and it also say without overheat or something, but it does overheat quick........



and yes I think chokpit view is one of the reasons no1 flys it....


La-7 is faster and climbs faster, turns better, what can yak9u do better then La-7? (exept for sniper guns)

robban75
02-10-2004, 02:19 PM
I just managed 580km/h at 25m alt, in the QMB Crimea map. Full fuel and 110% throttle. http://ubbxforums.ubi.com/images/smiley/16x16_smiley-indifferent.gif

http://members.chello.se/unni/Dora-9-3.JPG

When it comes to aircombat, I'd rather be lucky than good any day!

02-10-2004, 02:29 PM
thats odd test I was doing was with 25% fuel, it seems it going faste with 100%........hmmm.....

A.K.Davis
02-10-2004, 03:04 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Zen--:
So the Yak 3 was in greater service numbers then? That would mean that I was effectively wrong and you didn't say "You is wrong. Be sure"

Lol


Thanks, I thought the 9 series had higher production.

-Zen-
Formerly TX-Zen
<HR></BLOCKQUOTE>

Yak-9 series was numerically the most important Soviet fighter. Some 16,769 were produced. Of the Yak-9 series, the mark produced in the greatest numbers was the Yak-9M (4,239 made). Ironically, we do not have the Yak-9M in the game, most likely because it was a 1944 fighter with worse performance than many of the earlier model Yak-9 (but good range). 3,921 Yak-9Us were produced.

The La-5/7 series runs a close second to the Yak-9, with 10,000 La-5/5F/5FNs and 5,753 La-7s produced.

Some 4,800 Yak-3/3Ps were produced.

--AKD

http://www.flyingpug.com/pugline2.jpg

Pzyber
02-10-2004, 04:19 PM
is 2 slow, in objects view it says that it can get to max speed in level fly without overheating and that top speed at sea level is 575-600km/h I was able to make it fly max 540 with 110% trottle.........grr can we plz have it fixed............og maybe I'm wrong?

Yak-3 is also slow!!!
In object view you can read that it does 643km/h at 4100m, My yak-3 is only able to do 480km/h without any dive speed at 4100m and that's 163 km/h lost.

Pzyber
02-10-2004, 04:38 PM
Yak 9 at 5000m!!!
In object view = 673-700km/h
In game (12 tests) with 60-100 mixture settings (60, 70, 80, 90 and 100) on different map = 440km/h without any divespeed!

crazyivan1970
02-10-2004, 05:05 PM
I Flew it last night for the first time, very fast IMO, had no problem catching anything LW has to offer on the deck and even on the climb most of the time. It`s nowhere near as good as Yak3 in turnfight, but still very good. I am not sure if it can reach described speeds in level flgiht, but it sure can hold speed after slight dive and level out.

V!
Regards,

http://blitzpigs.com/forum/images/smiles/smokin.gif

VFC*Crazyivan aka VFC*HOST

http://www.rmutt.netfirms.com/coop-ivan.jpg

Kozhedub: In combat potential, the Yak-3, La-7 and La-9 fighters were indisputably superior to the Bf-109s and Fw-190s. But, as they say, no matter how good the violin may be, much depends on the violinist. I always felt respect for an enemy pilot whose plane I failed to down.

noshens
02-10-2004, 05:33 PM
Too bad it can't climb well and got too little ammo http://ubbxforums.ubi.com/infopop/emoticons/icon_confused.gif. I heard it was used in the Korean war, does anyone know how the Korean war version differes from 1944?

VW-IceFire
02-10-2004, 06:01 PM
I've flown about 35 missions in a campaign with the Yak-9U in Lvov 1944. Its a great fighter...I find it much more appealing to fly than the Yak-3. It feels heavier, it keeps its speed in level flight like a Mustang (which apparently it is the Mustang of the VVS - a few sources call it that), but it does have that aweful screen over the gunsight that makes aim on a darker monitor tough and its got very limited ammo like the Yak-3. Fortunately the ShVAK is powerful enough that a few well aimed blasts will do the trick...but if you spray and pray this isn't your airplane.

When I get the chance on Red team and the Yak or La is my choice...I choose the 9U every time. Its the most German/American/British feeling of all.

http://home.cogeco.ca/~cczerneda/sigs/temp_sig1.jpg
The New IL2 Database is Coming Soon!

SUPERAEREO
02-10-2004, 06:10 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by DangerForward:
(...) One of the interesting things I've noticed about the 9U is that it seems to have a complex damage model while I don't think other yaks do. So far it's the only yak type I've seen get the "loses controls" message.<HR></BLOCKQUOTE>

Nah. Yak 3 does get that message too.

I get it.

A lot.

Trust me: I am normally flying it... http://ubbxforums.ubi.com/infopop/emoticons/icon_razz.gif

nicolas10
02-10-2004, 06:34 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Pzyber:
is 2 slow, in objects view it says that it can get to max speed in level fly without overheating and that top speed at sea level is 575-600km/h I was able to make it fly max 540 with 110% trottle.........grr can we plz have it fixed............og maybe I'm wrong?

Yak-3 is also slow!!!
In object view you can read that it does 643km/h at 4100m, My yak-3 is only able to do 480km/h without any dive speed at 4100m and that's 163 km/h lost.<HR></BLOCKQUOTE>

Did you switch the supercharger gear at the required alt?

Nic

The first official D12 whiner!

kyrule2
02-10-2004, 08:13 PM
Please remember to close radiator, switch supercharger gear if needed, adjust fuel mixture if needed, 110% power, etc. I use 100% prop-pitch always.

I think the 9U comes up a little short in terms of numbers indicated in object viewer because the performance was evaluated as a prototype I believe. The performance of the 9U is supposed to be more representative of a production aircraft if I recall correctly. I may be wrong, just my thoughts.

Btw, I did my test with 50% fuel, I'll have to try it with other amounts and observe difference.

tttiger, my test for speed at sea-level is pretty fool-proof (fly off the edge of multiplayer map). I can get the same number for every plane, every time. I'll gladly do any speed tests at sea level but doing everything else sounds too daunting.

http://www.brooksart.com/Icewarriors.jpg

3./JG51_Hunde
http://www.jg51.com/

Cyrano
02-10-2004, 10:05 PM
Here are the numbers of both the Yak 9u and 3 for comparison sake. All speeds are TAS , tested with Rad closed and 25% fuel.

Yak 9u at SL 584 kph Yak3 at SL 577 kph
1000 600 1000 590
2000 623 2000 616
3000 649 3000 620
4000 646 4000 650
5000 680

above 4000m Stage2 supercharger was used and 60% fuel mixture

Both planes climbed to 3000m at 300kph IAS in 3:10

The 9u as has been mentioned doesn't turn quite as well but is slightly faster at most altitudes. Overall though based on performance, maneuverabilty and visibilty the Yak3 seems to be a better choice in FB. In il2 that wasn't neccesarily the case. Make no mistake about it though, the 9u is plenty fast and it's numbers match the object viewer.

Slush69
02-11-2004, 01:51 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Fillmore:
TAS and IAS are NOT the same at sea level in this game. It depends what map you use and can be different by a significant amount.<HR></BLOCKQUOTE>

What do you mean? That there's a bug in the game or what? At sealevel TAS and IAS should be approximately the same.

cheers/slush

http://www.wilcks.dk/crap/Eurotrolls.gif

MatuDa_
02-11-2004, 04:14 AM
100% fuel can be faster than 25% or 2% for that matter. It doesn't add drag and in fact the plane may fly in a more aerodynamic form with full fuel... someone who is more fluent in english can explain better but you should get the idea.

Top speeds were sometimes achieved after a bit of a dive after wich the aeroplane could maintain that speed (not reach it in level flight) Don't know if it is applicable to yak9u but anyways..

IAS is not TAS, depends on humidity and temp even on sea level. Maybe aircraft flying attitude has something to do with it too..

Jenny_Lo
02-11-2004, 05:44 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by MatuDa_:
100% fuel can be faster than 25% or 2% for that matter. It doesn't add drag and in fact the plane may fly in a more aerodynamic form with full fuel... someone who is more fluent in english can explain better but you should get the idea.

Top speeds were sometimes achieved after a bit of a dive after wich the aeroplane could maintain that speed (not reach it in level flight) Don't know if it is applicable to yak9u but anyways..

IAS is not TAS, depends on humidity and temp even on sea level. Maybe aircraft flying attitude has something to do with it too..<HR></BLOCKQUOTE>

True that the aerodynamic's due pitch of the plane may be improved due to the weight and balance of the fuel. But adding weight (fuel) does increase drag, induced drag, too much weight and you'll be inducing as much as you do in a tight turn, that's why you want a lighter plane.

Bogun
02-11-2004, 08:28 AM
I did my tests yesterday on Crimea map with turbulence off, no cockpit, %100 fuel, %110 power, radiator close.
Got max TAS speed:
At SL 571 km/h
5000m 672 km/h

Just wanted to remind Oleg said only German planes modeled according to manufacturer specs, Russian planes performance modeled as in frontline planes.
I can live with this.
My problem with Yak-9U hard blackouts nearly every time I try to perform and more or less hard maneuver. Too much elevator authority?

Regards,

AKA_Bogun
http://www.akawardogs.com/

http://img5.photobucket.com/albums/v22/Bogun/Sevastopol.jpg

"The best fighters I met in combat were the American P-51 Mustang and Russian Yak-9U. Both of those types obviously exceeded all Bf109 variants in performance, including the 'K'. The Mustang was unmatched in altitude performance, while the Yak-9U was champion in rate of climb and maneuverability."

- Walter Wolfrum

WOLFMondo
02-11-2004, 08:46 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by kyrule2:

The Yak-9U is one of the best looking planes of WWII IMHO, I saw a live demonstration and it was impressive. The 9U should be one of the dominant planes in the game going by performance, it just doesn't seem to work out that way. I think more people choose the Yak-3 because the visibility is so much better.
<HR></BLOCKQUOTE>

I think its a great looking plane, sleek lines and looks very aggressive but the visibilty is crap compared with the 3. I really like flying it but I prefer the K model cause of the ridiculous cannon. People really get confused when it take 1 shell to dismantle there plane.

Wolfgaming.net. Where the Gameplay is teamplay (http://www.wolfgaming.net)

Saburo_0
02-11-2004, 09:14 AM
Yakkety-yak-Yak!!

http://www.rayb.com/cartoons/yak.jpg

mortoma
02-11-2004, 02:20 PM
To the guys who wonder why it's not used too much online, it may have something to do with it's less than impressive armament. Also runs out of ammo fast.

VW-IceFire
02-11-2004, 02:25 PM
Its a much more experience pilot oriented version of the Yak. While the Yak 9 and 9D are fairly easy to fly...the 9U feels much more like an axis plane sometimes.

I know on the F_16Dedicated server where the choices were (on one airfield) either a 9D or a 9U...I took the 9U and mostly everyone else took the D.

http://home.cogeco.ca/~cczerneda/sigs/temp_sig1.jpg
The New IL2 Database is Coming Soon!

p1ngu666
02-11-2004, 02:33 PM
i dont have much luck in the U
and for tas/ias tobe same, u need tobe in the sea http://ubbxforums.ubi.com/images/smiley/16x16_smiley-very-happy.gif
someone posted some data on a spitfire, and the tas/ias was same at 2000feet i finks

http://www.pingu666.etglobalsolution.co.uk/sig/mysig3.jpg