FW 190 D9 Slower on cold maps

[CrazyGman]

I was told this last night by a player, and then I tested it in game, and it seems that the FW 190 D9 preforms poorly on winter maps compared to the other Bodenplatte German planes.

 

Generally on a summer map the D9 will out pace the A8 by almost 20km on the deck, but on a cold map the A8 has roughly the same speed around 606-607kph. and then compared to a stock K4 the K4 ridiculously outpaces the D9 on the deck at 639kph.

 

however on summer maps, they are much closer together, around 595 for the k4, and 593 for the D9.

 

I wonder if this is suppose to be the case, and that for some reason the D9 get a lot less performance boost in colder weather then compared to other planes, or if this is a bug?

 

any thoughts?

[CountZero]

When it was first introduced there was bug where you could not even get 590kmh on deck on winter map, then they fix that in next update and you can now do highest speed on deck on winter maps like with other airplanes, set your temp radiator to 100% on winter maps and youll see you get better speed then on autumn or summer.

[Matt]

Manifold pressure per set throttle setting on the Jumo 213 engine depends on oustside temperature, because of fixed air mass regulation. The warmer the temperature, the higher the manifold pressure, the colder the outside temperature, the lower the manifold pressure.

 

Page 82.

http://www.avialogs.com/index.php/en/engines/germany/jumo/jumo-213/flugmotor-jumo-213-a-1-u-c-0-entwurf-zu-einem-motoren-handbuch.html

 

So overall, relative performance increase in cold temperatures is way less than it is on other planes (it consequently also loses less power at higher temperatures compared to other planes).

[CountZero]

I just check and was doing 616kmh at 100m at stalingrad winter map, thats 9kmh faster then on autum map

[CrazyGman]

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Posted 35 minutes ago

Manifold pressure per set throttle setting on the Jumo 213 engine depends on oustside temperature, because of fixed air mass regulation. The warmer the temperature, the higher the manifold pressure, the colder the outside temperature, the lower the manifold pressure.

 

Page 82.

http://www.avialogs.com/index.php/en/engines/germany/jumo/jumo-213/flugmotor-jumo-213-a-1-u-c-0-entwurf-zu-einem-motoren-handbuch.html

 

So overall, relative performance increase in cold temperatures is way less than it is on other planes (it consequently also loses less power at higher temperatures compared to other planes).

 

Ok cool, I'm good with if that is how it's suppose to be. Interesting, need to take that into account

Edited September 14, 2019 by CrazyGman

[FTC_ChilliBalls]

funny how it´s completely reverse when compared to other German planes, where rpm is automatically set according to throttle,

whereas in the Jumo you only operate RPM and the rest is automatically set to fit altitude and temperature.

[II./SG.1-MarkWilhelmsson]

On 9/14/2019 at 7:44 AM, 77.CountZero said:

When it was first introduced there was bug where you could not even get 590kmh on deck on winter map, then they fix that in next update and you can now do highest speed on deck on winter maps like with other airplanes, set your temp radiator to 100% on winter maps and youll see you get better speed then on autumn or summer.

 

How does the D9 radiator setting work? I'm confused about it.

[=420=Syphen]

19 hours ago, III./JG7-MarkWilhelmsson said:

 

How does the D9 radiator setting work? I'm confused about it.

 

I believe you set a desired outlet temp and it self adjusts to maintain. Someone smarter will give ya a better answer though.

[CountZero]

21 hours ago, III./JG7-MarkWilhelmsson said:

 

How does the D9 radiator setting work? I'm confused about it.

0% good on autum and summer, 100% on winter, why who knows, and like HawkeyeP say its just temp adjustment and then radiator autmaticly maintain it, but you dont kow at what temp you set it as only % shows