Yak/Lagg time limit on max boost does not exist or does it?

[the_emperor]

In game the Yaks/Laggs inline engines do not have a time limit on their maximum MAP setting as most soviet manuals dont mention a limit (and in game logic therefore a limit does not exist)

But this 1943 manual for the Yak-1 gives us a 5 min limit for the 1050mm take off power setting

 

as also does this Klimov  engine manual for the earlier variant, which is currently not in game:

Edited January 24, 2024 by the_emperor

[=FB=VikS]

Hi!

 

These limits for eralyer versions of M-105 - PA (ПА) and RA (РА) which was fitted to early types of Yaks/LaGG`s (pre-summer 1942), and take off power on these where gained by additional boost control lever.

We have later version - M-105PF engine which have 1050 boost pressure as nominal.

PS: as for the upper document - thats just a typo (its from Yak-1 Contruction, drawings and repair album).

[69th_Mobile_BBQ]

Fly either of these planes at full throttle and RPM in anything other than cool weather or, turn/climb for a few minutes staying below 300 km/h with these settings and you will quickly see where the "limiters" are.  This is true even with the radiators fully open.  (Also applies to both Pe-2 models as well.)

[the_emperor]

I am aware that most manuals name that power setting as nominal or give no time limit?

The title was a bit clickbaity, granted.

 

@=FB=VikS

why do you consider the 5min Limit for the Yak-1 manual as a typo?

Edited January 25, 2024 by the_emperor

[Sgt_Joch]

It is a common misconception that the YAKs have no engine time limit. The “limit” is the heat. Fly a YAK at 100% RPM/MP for more than a few minutes and the heat will build up to the point where you have to reduce power or you will blow up the engine.

 

If you drill down in the specs, I.e. effective compression/fuel octane level, you will also find the Russians did not push their engines as much as the Germans. A YAK engine at full power is roughly equal to the “combat” setting on the 109 engine.

Edited January 25, 2024 by Sgt_Joch

[the_emperor]

On 1/25/2024 at 2:44 PM, Sgt_Joch said:

The “limit” is the heat.

You are right.

there limit in term of temperatures:

max oil 115degr for 5min

max water 110 degr for 10min

german and british/us engines have those limits too….which could be nice alternative to the current timer mechanic

but those time limits are not in the game as far as I know (and for all other engines as well). 
 

On 1/25/2024 at 2:44 PM, Sgt_Joch said:

A YAK engine at full power is roughly equal to the “combat” setting on the 109 engine.

No, it has considerable less power output. The klimov engine was an older Hispano-Suiza design iirc.

So, that argument could be made, that is was so low performing that it could been run on max power all the time.

On 1/24/2024 at 10:25 PM, =FB=VikS said:

PS: as for the upper document - thats just a typo

Still would like to know why this is considered a typo in the manual

Edited March 13, 2024 by the_emperor

[Sgt_Joch]

33 minutes ago, the_emperor said:

No, it has considerable less power output. The klimov engine was an older Hispano-Suiza design iirc.

So, that argument could be made, that is was so low performing that it could been run on max power all the time.

Still would like to know why this is considered a typo in the manual

 I was talking about the effective compression ratio, not the power output.

34 minutes ago, the_emperor said:

but those time limits are not in the game as far as I know (and for all other engines as well). 

 not sure what you mean. Have you flown the YAKs? The engine will self destruct if you fly it too long after it overheats.

[the_emperor]

16 minutes ago, Sgt_Joch said:

I was talking about the effective compression ratio, not the power output.

Not low with 7.1

16 minutes ago, Sgt_Joch said:

not sure what you mean. Have you flown the YAKs? The engine will self destruct if you fly it too long after it overheats.

You can fly the plane  indefinitely at 110deg (tested at SL) without running out of time . As there are no timers for engine temps in game (last time i checkedk though there are time limits in the manuals which should therefore work in the same principle as the timers on powerr settings.

eg the DB605a also allows for a higher temp for a certain amount of time: 10min for 115deg up to 5km height

[[CPT]Crunch]

First seven minutes are a good explanation why this is the case.  Klimov engines used the same connecting rod systems based off the Sousa Hispano's. 

[=FB=VikS]

9 hours ago, the_emperor said:

@=FB=VikS

why do you consider the 5min Limit for the Yak-1 manual as a typo?

 

cause there is an engine history with description about what changes where done for PF engine, as well as other pilot manuals and  engines description books, and reports with airplanes performance tests.

 

2 hours ago, the_emperor said:

You can fly the plane  indefinitely at 110deg (tested at SL) without running out of time . As there are no timers for engine temps in game (last time i checkedk though there are time limits in the manuals which should therefore work in the same principle as the timers on powerr settings.

eg the DB605a also allows for a higher temp for a certain amount of time: 10min for 115deg up to 5km height

 

if that so - all you need is to make a track record and report it into the FM bugs section

[the_emperor]

12 minutes ago, =FB=VikS said:

other pilot manuals and  engines description books, and reports with airplanes performance tests.

Thanks for the reply and explanation?

so if the majority of manuals/reports/sources tell a different story then this is considered canon.
many thanks for your time and patience✌️ 

Edited January 25, 2024 by the_emperor

[=FB=VikS]

1 minute ago, the_emperor said:

Thanks for the reply and explanation?

so if the majority of manuals/reports/sources tell a different story then this is considered canon.
many thanks✌️ 

 

Its just an academy album for tech guys learning - so my bet that they just copyed text into the table with engine data - and noone cared about that - as its about learning its construction - not about performance and flying it, happens.

 

PS: yet - it had very cool graphics and very cool stuff - i had one in original

[the_emperor]

On 1/25/2024 at 6:23 PM, =FB=VikS said:

 

if that so - all you need is to make a track record and report it into the FM bugs section

 

tested the Yak-9 at sea level (oil rads at 100%, water rads 0-2%; full MAP, full rpm):

can run indefinitely at 114deg

at 115deg the radiator starts "smoking" but still no overheating warning.

above 115deg the engine overheats. 

this is only achivable with rads fully closed an it takes a very long time.

if rads are kept at 1-2% open it can be flow indefinitely at 114deg.

I cant post the Track-File due to its size

Edited January 27, 2024 by the_emperor

[LukeFF]

7 hours ago, the_emperor said:

tested the Yak-9 at sea level (oil rads at 110%, water rads 0-2%; full MAP, full rpm):

can run indefinitely at 114deg

at 115deg the radiator starts "smoking" but still no overheating warning.

above 115deg the engine overheats. 

this is only achivable with rads fully closed an it takes a very long time.

if rads are kept at 1-2% open it can be flow indefinitely at 114deg.

I cant post the Track-File due to its size

 

If you have a file-sharing service on Google Drive on something similar, it can be posted there. Thanks!

[the_emperor]

@LukeFF

Sorry, currently I dont have access to that

[Roland_HUNter]

On 1/26/2024 at 11:36 AM, the_emperor said:

 

tested the Yak-9 at sea level (oil rads at 100%, water rads 0-2%; full MAP, full rpm):

can run indefinitely at 114deg

at 115deg the radiator starts "smoking" but still no overheating warning.

above 115deg the engine overheats. 

this is only achivable with rads fully closed an it takes a very long time.

if rads are kept at 1-2% open it can be flow indefinitely at 114deg.

I cant post the Track-File due to its size

We talked about this last year:

 

[the_emperor]

 @Roland_HUNter

Yeah. totally forgot ?

 

@LukeFF

I uploaded the track here (if that is all right?):

https://file.io/m1AEUukSFL9F

Edited January 28, 2024 by the_emperor

[LukeFF]

Thank you, yes, that works.

[the_emperor]

@LukeFF

tested the Lagg-3 in the same way:

it can run indefinitely at around 115deg

Trackfile:

https://file.io/wHX9UXrsi2mJ

 

Limits for that engine are 110deg for a maximum duration of 10min.

90-100deg is the desired "рекомендуемая" temperature.

[MK_Kyza]

On 1/24/2024 at 10:25 PM, =FB=VikS said:

Hi!

 

These limits for eralyer versions of M-105 - PA (ПА) and RA (РА) which was fitted to early types of Yaks/LaGG`s (pre-summer 1942), and take off power on these where gained by additional boost control lever.

We have later version - M-105PF engine which have 1050 boost pressure as nominal.

PS: as for the upper document - thats just a typo (its from Yak-1 Contruction, drawings and repair album).

 

Hello Viks  and deep bow to you and all other devs of this Awesome game.

 

When we are talking about these versions of engine P-105 developed by Klimov from Hispano 12Y,  I personally think that YOU are not right with these times of max engine power for take-off.

Manual from Year 1944 says that there is no diference between PA and PF engines in construction. You can find it on page 144.

"Therefore, to study the design of the M-105PF and M-105RF motors, their operation and installation, you should use this publication."

 

The differences are ....

"Design features of the M-105PF and M-105RF motors
For reliable operation of the motor in forced mode, the piston pins of the M-105PF and M-105RF motors have been strengthened by reducing the diameter of the internal hole from 20 mm to 18 mm.
To ensure that the mixture does not become leaner with increasing boost, the carburetor adjustment has been changed by reducing the diameter of the carburetor suction air jet from 1.1 mm to 0.9 mm.
The flexible crankshaft coupling has an enlarged outer
diameter equal to 71.8 mm (due to which the hole for the elastic
the clutch in the eighth main journal of the crankshaft is enlarged
also up to 71.8 mm.
Otherwise, the M-105PF and M-105RF motors have no design differences from the M-105PA and M-105RA 1 motors.
Instructions for converting motors of type M-105PA to M-105PF ohm. on page 232."

 

Mybe there is some other version of This Original Manual with no TYPO MISTAKES

 

--------------------------------------------------------------------------------------------------------------------------------

 

I get this information from two of my friends. We are all flying real planes, one of them Historical ... but this is not so important.

Important thing is that friend of mine want to build replica with original engine he found. VK-105 and that is the point. He found lot of information and so on.

Even we have original manual for this engine. I can provide it to you if you want to.

 

 

Point is that I have another information how reliable this over boosted original construction of Hispano Suiza 12Y was. I'm talking about M105 engine.

So basically there is no chance to Use full throttle from take off and leave it as it is for all flight

 

Even in real when I'm flying various types of aeropláne like Z226, Z142, Z143 and others there are always time limits for Take-Off engine power.

 

Another friend, flying Yak-3, P51, Spit IX, Hurricane IIC, Pilatus and other planes. saying same thing about every each single plane. There are limits for specific HP and RPM.

 

But this is only the words of real flying pilots. I cannot prove it.

 

 

I found also another USSR manual where these regimes are described no matter of PLANE TYPE installed in.

I do not understand why. When we can JUST use full throttle for all the time

 

Ok that is enough from my side.

And please thank you again for this Game because I'm playing it lot of time together with my friends.

Really no JOKE. But sometimes the realitty accuracy of (SIM/GAME) is terrible.

 

THANK YOU VIKS IN ADVANCE FOR EXPLANATION.

 

MK_Kyza

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  

 

Edited February 7, 2024 by MK_Kyza

[MK_Kyza]

Sorry that I'm still here but I Have another perfect example of MODERN planes and engine limits.

 

I had a chance to fly SU29 aerobatics plane few times. I'll prefer to have SU29 or 31 because it is really great robust plane with nice characteristics. It is not so comfortable like Extra but it is really brutal strong plane from my point of view. Like a fighter plane.

 

In Pilot handbook there is lot of limits and so one. One of the limits are ENGINE MAXIMUM limits and times of course.

Why such a modern (And in my eyes AWESOME) plane have these limits when M-105 has no limits based on your information ???

 

This is the EASA pilot handbook for SU29. BTW: It is really my favorite plane.

 

Link to handbook......... EASA.A.082 (europa.eu).

 

------------------------------------------------------------------------------------------------------------------------------------------

 

Another good example is FADEC controlled Austro Engine in DA-40NG. My another favorite plane for traveling.

Why this awesome easy for fly aircraft have such a limits either ?

 

Handbook link .... DA40D,AFM,Rev5,chapter 0 (diamond-air.at)

 

 

---------------------------------------------------------------------------------------------------------------------------------------

 

Something is really wrong here with M-105.

 

OK. That is enough from my side in this thread,

but i still think you should reconsider some airplanes characteristics

not only for engine management

but for other factors, like Vne, Vno and Vfe mainly (Spits),

 

Thank you

 

MK_Kyza

 

 

 

Edited February 8, 2024 by MK_Kyza

[the_emperor]

@MK_Kyza

This M-105 PA(PF) manual does indeed describe the 1050mm boost of the M-105PF as "take off" power, not continuous or normal.

 

[MK_Kyza]

There is difference. This another manual says 1210 HP 2600RPM +6,4lb BOOST/TAKE-OFF. So I think there is some differences but TIME LIMIT for TAKE-OFF is definitely there. Another story is temperature of oil and coolant ...... especially on continuous mode.

But PF engine was boosted for low altitude with bad performance in high altitude.

 

 

 

But in ORIGINAL manual there is that you mention early.

 

Edited February 8, 2024 by MK_Kyza

[the_emperor]

well. the M-105PF and PA do essential have the same at higher altitudes (the power curves "meet" at 4000m, no Ram.

as you can see the 1210ps at SL and 1260ps @ 700m are matching.)

What is interesting, that the Klimov seems to be able to increase its full throtlle hight with ram from 2700m to 4000m. that is quite a good.

the Merlin manages ~ 4000feet and the DB605a ~900m increase in FTH with ram.

 

 

Edited February 8, 2024 by the_emperor

[MK_RED13]

I see enough evidence in this thread that the thermal performance of the Klimov engine is overmodelled in this game. Why? 

Ed

Edited February 9, 2024 by MK_RED13

[the_emperor]

 

Operating temps (water (and oil)) for the Klimov (both versions) are 90-100deg. above you are running the engine hot with a max temperature at 110deg and only allowed for 10min.

Edited February 9, 2024 by the_emperor

[MK_RED13]

This means that without the thermal limitation the Yak (all planes with Klimov) also has longer endurance at max climb rates in this game....right?

Edited February 9, 2024 by MK_RED13

[Gavrick]

 

On 2/7/2024 at 10:40 AM, the_emperor said:

tested the Lagg-3 in the same way:

it can run indefinitely at around 115deg

I wanted to watch it now - the track has been deleted.
I myself watched LaGG-3 in the game - at water/oil temperatures of about 110 degrees, especially if you slightly exceed the water temperature and allow it to boil - there is a warning about overheating, and with a slight increase in temperature, damage begins. The margin for the permissible temperature of the cylinder block is an “internal” parameter - there are literally ten degrees before the onset of visible problems. Moscow-autumn, altitude one kilometer. As altitude increases, problems appear even earlier.
I succeeded in “flying endlessly” at a water temperature of about 108 degrees - but for this I had to monitor the temperature not according to the device, but according to debugging information, so as not to cross the border.
So I don’t see any particular problem or “advantage” in this.
I admit that there may be combinations of external temperature, engine operating mode and radiator position, where the temperature can be above 110 degrees - but either tracks with stable frequent playback are needed, or these are special cases.
The thermal model of the motor is “dynamic”, heat is distributed over several elements of the system, and this is a dynamic process. There is no such thing as “if the water temperature is more than x degrees, the motor will be damaged.” The heat simply stops leaving the system - especially if the water has boiled - and then the cylinders begin to heat up instead of water, which after a while, as they warm up, will lead to damage.

 

On 2/7/2024 at 11:11 PM, MK_Kyza said:

I get this information from two of my friends. We are all flying real planes, one of them Historical ... but this is not so important.

I am very glad that you and your friends have the opportunity to fly real airplanes, including historical ones. It's unfortunate that you had to experience some terrible things in our game. And, of course, it was interesting to look at the instructions for amazing modern light and sport aircraft.
But.

 

Here is the official reference book of those years, which says that 105PF has no time limit. And yes, you provided a list of differences - small design improvements that made it possible to remove restrictions.

1 hour ago, MK_RED13 said:

This means that without the thermal limitation the Yak (all planes with Klimov) also has longer endurance at max climb rates in this game....right?

No.

[the_emperor]

@Gavrick

Many Thanks.

https://file.io/x5HiNOGmDTIc

here is a new track file. I was flying purely by instruments.

But shouldn't flying at 108deg also be limited to a certain amount of time or does the flight models in general dont have a time limit on temperatures?

How do you decide when to choose what time limit on a certain (WEP) power setting?

[MK_Kyza]

Hello Gavric. Thank you for your answer.

My question now is why you are using materials from year 43 ? And no that one from year 44 ? And again. This is not official material from Klimov.

Another question is, what actually that NO VALUE dashes means ?

 

Another question is that you mention no time restriction for PF based on this article.

 

But there is no such a information. Or your thoughts are that if there is no such a information then it does not exist time limit?

 

Thank you for explanation.

 

 

MK_Kyza

 

PS:Still enjoying the game

Edited February 11, 2024 by MK_Kyza

[MK_Kyza]

Another offical pilot handbook.

 

What happen when I will use full throttle for more than 20 seconds during engine test ?

If nothing, the engine will be overheated right ?

 

MK_Kyza

 

 

 

[the_emperor]

59 minutes ago, MK_Kyza said:

What happen when I will use full throttle for more than 20 seconds during engine test ?

If nothing, the engine will be overheated right ?

This is a pre flight check up, other nations manuals also have such test.

But this manual names the 1050mm "nominal" power.

So I guess valid the argument by the developer is, that if most manuals (or majority) dont mention a limit, then there is none or you go with what most manuals say.

Then there is still the questions why the 1imin limit was chosen for the DB605a(and 601E & 603) and the 10min for the La-5fn (Ash M-82fn) when the majority of sources people produce say otherwise.

I am more concerned that the engines (in the first charger Stage) seem to have higher limits in regards to the temperatures and the Yak-9 seems to have particular good cooling performance as it can run in level flight the its water radiator almost closed.

Yes, watercooled inline engine would in probably overheat quite fast stationary on the ground.

[MK_Kyza]

Gavrick, Viks please do not  hesitate and explain it to us. We are waiting :)

Thank you a lot

MK_Kyza

[MK_RED13]

G and V.... We are still waiting for an explanation.

 

Thank you.

 

ED.

[the_emperor]

@Gavrick

thanks for the fast clearing up the 5min typo for the Yaks/Laggs M-105pf engine. 
Will you now clear up the La-5fn Ash-82fn 10min and 109s DB605a 1min typo?
 

[the_emperor]

Id like to stir this topic up:

as this 1945 Yak- 9 manual gives us a climb rating:

910mm and 2400 rpm (in case of running to hot too be reduced to 2300rpm)

and a max water temperature of 100 C (currently in game its slightly above 110)

And I would like to discuss the current max temp of the Yaks engine.

 

 

that max wat temperature is also confirmed by the manual @Gavrick posted for the the absence of a time limit on max boost/rpm

 

 

as well as engine manual

 

and this Yak-7 Pilots manual

Edited May 28, 2024 by the_emperor

[72AG_terror]

Regarding the boost pressure, the unlimited 1050mm Hg was a fact. It went like this - the real max speeds of 109s in the early stages of the war was greatly underestimated by VVS because a 109 they captured had a broken supercharger the technicians did not notice at the time of test flights, thus the speeds obtained were erroneously low as well as climb rates. Based on this (wrong) data VVS concluded that the current fighter models (most with M-105PA) are more than adequate to counter the 109s. In most of the Soviet pilots 'fighting manuals' at the time it was incorrectly stated that 109s are inferior to Soviet fighters in vertical maneuvering and max speeds. No wonder it came as a schock for VVS and the Air Industry Ministry when the real max speeds of 109F (100+km/h more than the Soviet fighters at the time) were revealed by a captured German pilot. VVS and the Ministry immediately put great pressure on the design buros and engine constructors to radically increase Soviet fighters max speeds. A many hopes (most never to materialise) were placed on the M-107 which was being developed at the time by Klimov, M-71 (radial) by Shvetsov and some other engines and new planes but all those needed time and something needed to be done right away. Among other extreme measures, like trying to lighten the planes by throwing out all 'unnecessary' equipment or weaking wing structures (LaGG-3), the engine was the most obvious. The M-105 was the most widely used engine and it was already known that the engine can be boosted to 1050. Klimov, however, sternly opposed overboosting the engine as he feared that mass engine failures could occur on the frontlines for which he would be blamed. This time around in view of the situation, he was 'kindly persuaded' to do it. After some modifications, which included amongst them lowering critical altitude for example, the engine then was extensively tested and it was confirmed that it could withstand continous 1050 boost. So the M105PF was born. In short it was not the same engine as M-105PA, it was heavely modified to withstand continuous 1050mm and you will not find evidences proving otherwise. Oh, and M-105PA was not a carbon copy of Hispano-Suiza either by the way.

 

As for the temperatures - the Soviet fighters were notorious for their appaling temperature regimes, LaGG-3 in particular. And that is reflected in-game: you cannot continuously climb in, say, Yak-7 at best climb speed or be in a prolonged stall-fight on a normal day on the contiuous (100/100) settings as the engine will overheat and seize, you are forced to lower RPM, increase mixture, reduce throttle - all non-conductive to the best fight outcome. You can do it any day no problem on German or Allied planes on the other hand. At what particular speed overheat occurs, as long as it is something plausible, is of little relevance - it already does in fact affect the fight picture in a major way.

 

Bf109 1min limit had nothing to do with typos or, for the sake of argument, the engine being bad. It had all to do with the Allies denying Germany nickel supplies them in-turn being unable to correctly coat aero-engine valves to prevent corrosion. After some exploitation the valves corroded and acquired scaling on them, afterwards when heated enough they would cause pre-ignition and detonation that damaged or destroyed the engine. The limit of 1min was introduced to avoid heating the valves enough for this to occur, later due to an unpredictable nature of all this the 1.42 was later banned altogether. When BMW developed heavy chromium coating on their valves and then transfered the tech to Daimler, only then the limit was removed.

Edited June 21, 2024 by 72AG_terror

[the_emperor]

59 minutes ago, 72AG_terror said:

Regarding the boost pressure, the unlimited 1050mm Hg was a fact. It went like this - the real max speeds of 109s in the early stages of the war was greatly underestimated by VVS because a 109 they captured had a broken supercharger the technicians did not notice at the time of test flights, thus the speeds obtained were erroneously low as well as climb rates. Based on this (wrong) data VVS concluded that the current fighter models (most with M-105PA) are more than adequate to counter the 109s. In most of the Soviet pilots 'fighting manuals' at the time it was incorrectly stated that 109s are inferior to Soviet fighters in vertical maneuvering and max speeds. No wonder it came as a schock for VVS and the Air Industry Ministry when the real max speeds of 109F (100+km/h more than the Soviet fighters at the time) were revealed by a captured German pilot. VVS and the Ministry immediately put great pressure on the design buros and engine constructors to radically increase Soviet fighters max speeds. A many hopes (most never to materialise) were placed on the M-107 which was being developed at the time by Klimov, M-71 (radial) by Shvetsov and some other engines and new planes but all those needed time and something needed to be done right away. Among other extreme measures, like trying to lighten the planes by throwing out all 'unnecessary' equipment or weaking wing structures (LaGG-3), the engine was the most obvious. The M-105 was the most widely used engine and it was already known that the engine can be boosted to 1050. Klimov, however, sternly opposed overboosting the engine as he feared that mass engine failures could occur on the frontlines for which he would be blamed. This time around in view of the situation, he was 'kindly persuaded' to do it. After some modifications, which included amongst them lowering critical altitude for example, the engine then was extensively tested and it was confirmed that it could withstand continous 1050 boost. So the M105PF was born. In short it was not the same engine as M-105PA, it was heavely modified to withstand continuous 1050mm and you will not find evidences proving otherwise. Oh, and M-105PA was not a carbon copy of Hispano-Suiza either by the way.

Correct. 

even though its sported the same displacement as the german DB605a it was vastly inferior in terms of power output:

DB605a 1.42/2800

DB605a 1.3/2600

M-105pf 1050mm/2700

 

 

1 hour ago, 72AG_terror said:

Bf109 1min limit had nothing to do with typos or, for the sake of argument, the engine being bad. It had all to do with the Allies denying Germany nickel supplies them in-turn being unable to correctly coat aero-engine valves to prevent corrosion. After some exploitation the valves corroded and acquired scaling on them, afterwards when heated enough they would cause pre-ignition and detonation that damaged or destroyed the engine. The limit of 1min was introduced to avoid heating the valves enough for this to occur, later due to an unpredictable nature of all this the 1.42 was later banned altogether. When BMW developed heavy chromium coating on their valves and then transfered the tech to Daimler, only then the limit was removed.

 

no. the 1min limit was never implement. 

the 1.42/2800 Start&Notleistung Setting was either blocked or (starting around mid 43) 3min when the engine got upgraded and allowed for Start&Notleistung

[72AG_terror]

On 6/21/2024 at 5:54 PM, the_emperor said:

Correct. 

even though its sported the same displacement as the german DB605a it was vastly inferior in terms of power output:

 

Totally true. In general The lack of power (that is a powerful engine) was the cornerstone problem of the Soviet fighters.

 

On 6/21/2024 at 5:54 PM, the_emperor said:

no. the 1min limit was never implement. 

the 1.42/2800 Start&Notleistung Setting was either blocked or (starting around mid 43) 3min when the engine got upgraded and allowed for Start&Notleistung

I will not argue with this as I am not so knowledgeable on this particular issue. I guess you are right. It should be addressed then.