Yak-9 unable to achieve full manifold pressure of 1050mm

[FeuerFliegen]

In the Yak-9 and 9T, I have been unable to get the stated 1050mm of manifold pressure; the most I can get is 1030mm.  Bug?

[the_emperor]

 

the boost can vary...but since our engines are top of the line, brand new and perfectly regulated and all other M-105PF engine do make the 1050mm. that should probably be corrected 

[=MERCS=JenkemJunkie]

At some altitudes/conditions you can gain a small boost increase by dropping your RPM, as a separate thing to the extra speed.

Edited September 12, 2024 by =MERCS=JenkemJunkie

[Regingrave-]

12.09.2024 в 06:51, FeuerFliegen сказал:

In the Yak-9 and 9T, I have been unable to get the stated 1050mm of manifold pressure; the most I can get is 1030mm.  Bug?

The gauge is animated in the wrong range, but withing simulation the 1050 mm of pressure is there.

[FeuerFliegen]

44 minutes ago, Regingrave said:

The gauge is animated in the wrong range, but withing simulation the 1050 mm of pressure is there.

 

ok thanks; is the entire range off by about 20mm?  or does it differ at different levels?

 

Any plans to fix this?

[the_emperor]

16 hours ago, Regingrave said:

The gauge is animated in the wrong range, but withing simulation the 1050 mm of pressure is there.

Does this issue extend to the water temperature gauge as well,

as I can run it slightly above 110C infinitely without overheating though per ingame and historical manual the limit is 100C

 

Edited October 1, 2024 by the_emperor

[Regingrave-]

22 часа назад, FeuerFliegen сказал:

ok thanks; is the entire range off by about 20mm?  or does it differ at different levels?

 

Any plans to fix this?

Less than that, note that another bit of readings error could be because of the parallax.
Probably in the next update, if nothing urgent will appear.

 

6 часов назад, the_emperor сказал:

Does this issue extend to the water temperature gauge as well,

as I can run it slightly above 110C infinitely without overheating though per ingame and historical manual the limit is 100C

We'll check that.

[the_emperor]

On 10/1/2024 at 4:10 PM, Regingrave said:

On 10/1/2024 at 10:05 AM, the_emperor said:

Does this issue extend to the water temperature gauge as well,

as I can run it slightly above 110C infinitely without overheating though per ingame and historical manual the limit is 100C

We'll check that.

 

at the second stage of the supercharger overheating correctly seems to start around 100C.

this does extend to all Klimov M-105PF fighters (tested on Kuban Autumn)

[FeuerFliegen]

On 10/6/2024 at 4:04 AM, the_emperor said:

 

at the second stage of the supercharger overheating correctly seems to start around 100C.

this does extend to all Klimov M-105PF fighters (tested on Kuban Autumn)

 

What altitude?

Overheating temp lowers, the higher you go up in altitude.

[the_emperor]

15 hours ago, FeuerFliegen said:

What altitude?

Overheating temp lowers, the higher you go up in altitude.

yeah...thats weird.

the Limit should be fixed to 100C and the other circumstances (speed, altitude, rad position, outside temperatures, charger stage, mixture, MAP, rpm...etc) should determine how fast you reach (break) that threshold.  

[FeuerFliegen]

5 hours ago, the_emperor said:

yeah...thats weird.

the Limit should be fixed to 100C and the other circumstances (speed, altitude, rad position, outside temperatures, charger stage, mixture, MAP, rpm...etc) should determine how fast you reach (break) that threshold.  

 

 

It makes sense that the limit is lower with higher altitudes, because water boils at a lower temperature at higher altitudes due to lower atmospheric pressure.  At the same time though, it ends up being easier to not overheat at higher altitudes because the air is so much colder.

[the_emperor]

14 minutes ago, FeuerFliegen said:

It makes sense that the limit is lower with higher altitudes

Some planes do have limits in regards to height eg 109. 

but the Yak does not. Its 100C max and the ambient factors determine how fast you reach that limit
 

15 minutes ago, FeuerFliegen said:

At the same time though, it ends up being easier to not overheat at higher altitudes because the air is so much colder.

no not really. The air is thiner, the charger gear is running hotter. The colder ambient temperature cant totally offset this. 

[FeuerFliegen]

On 10/15/2024 at 7:45 AM, the_emperor said:

Some planes do have limits in regards to height eg 109. 

but the Yak does not. Its 100C max and the ambient factors determine how fast you reach that limit
 

no not really. The air is thiner, the charger gear is running hotter. The colder ambient temperature cant totally offset this. 

 

 

are you saying that it's 100C max not because water boils at 100C at sea level?  and for a completely different reason, so if the water could boil at 85C, it wouldn't matter?

 

In this sim, I definitely notice it's easier to keep my engine cool at higher altitudes.  Makes a big difference in a plane that can easily overheat like the Fw190A when it's summer.

[the_emperor]

3 hours ago, FeuerFliegen said:

are you saying that it's 100C max not because water boils at 100C at sea level?  and for a completely different reason, so if the water could boil at 85C, it wouldn't matter?

 

Because the manual says so. 

The coolant circuits are pressurised,

and have a higher boiling point. 

but the limits are the limits and should be working correctly. 

 

[FeuerFliegen]

6 hours ago, the_emperor said:

Because the manual says so. 

The coolant circuits are pressurised,

and have a higher boiling point. 

but the limits are the limits and should be working correctly. 

 

ah, I didn't realize they were pressurized; that makes sense.

 

But in the sim, is it affected by altitude?  You said it did it in second gear, but was it because of the SC gear?  or because you were higher altitude?