Huge bug with bf109 climb rates

[RydnDirty]

According to multiple sources online the Bf109F4 should climb to 6km in 6 mins and the Bf109G2 climbed to 6km in just over 5min.

 

http://kurfurst.org/Performance_tests/109F4_Datenblatts/109F4_dblatt_flown.html

 

http://kurfurst.org/Performance_tests/109G_MT215/109G2_MT215_en.html

 

The F4 in the game climbs to 6 k in just under 5mins 

 

The and the G2 climbs to 6k in just over 5 min. 

 

I did the test twice in both planes at 100% fuel, 1.3 ata climb, 270km/h.

 

At first I thought the F4 was getting better performance from the cold air giving better power, while the G2 was using the derated engine and while it benefited from the cold air it also lost power from having derated engine...

 

But this is no explanation. The derated engine only means it can't go to 1.42 ata. power setting. This has no effect as both planes are climbing at 1.3 ata and the F4 isn't using 1.42 ata either.

 

I can't see any reasonable explanation for this.

 

The g2 has a heavier more powerful engine with higher displacement but it this engine makes much more power which more than compensates foir the extra weight in climb performance and the historical tests show that the g2 should outclimb the f4 at climb power of 1.3 ata.

 

Is the community and the devs aware of this ?  Is there an official explanation I have missed? 

 

Sorry if this is old news and I have missed the threads that explain it. I did search but found nothing...

 

[Yakdriver]

not an FM expert here, but "no explanation" now equals "huge Bug" ?
you might be right, but chill out, man... no panic.

[II./JG77_Manu*]

Willy you are 100% right, but that's the case with almost every plane here. Some overperforming (F4, Yak, Lagg), and the others underperforming (G2, Fw190, La5). But it has been worse, and i think the community is kind of "satisfied" with the current situation, when you look how bad it was before (especially 190). We can only hope that they got corrected more and more in the future. Maybe when the FMs and stuff are being opened for modders. Guys like Team Fusion are surely up for stuff like that

[Petrosky]

I doubt that the FM will be opened to modders

[Feathered_IV]

If the 109 was ten seconds slow there'd be an angry mob of luftwhiners calling in death threats and spamming bike chat forums threatening to boycott the game. A full minute faster though... They'll just take that as their due.

[Dutch]

'Multiple sources' = Kurfurst.

 

Who? Not that bloke who's spent his entire adult life telling the whole world that the Messerschmitt Bf 109 was the Lord's gift to the world?

 

Well I suppose he must be correct then. I bet Buzzsaw would agree.

[GP*]

If the 109 was ten seconds slow there'd be an angry mob of luftwhiners calling in death threats and spamming bike chat forums threatening to boycott the game. A full minute faster though... They'll just take that as their due.

 

Hah! 

 

Funny, because it's true.

[Dutch]

Huge bug.

 

I agree.

[RydnDirty]

'Multiple sources' = Kurfurst.

 

Who? Not that bloke who's spent his entire adult life telling the whole world that the Messerschmitt Bf 109 was the Lord's gift to the world?

 

Well I suppose he must be correct then. I bet Buzzsaw would agree.

 

You seem to be confused, the kurstfurst site has historical test results that say the 109 F4 was NOT as fast in climb as it is in the game. By over minute!  

 

Google it yourself there are other sites with similar documents.   

 

 

Oh I see you already saw and replied.

Edited December 10, 2014 by WillyZurmacht

[Kurfurst]

According to multiple sources online the Bf109F4 should climb to 6km in 6 mins and the Bf109G2 climbed to 6km in just over 5min.

 

http://kurfurst.org/Performance_tests/109F4_Datenblatts/109F4_dblatt_flown.html

 

http://kurfurst.org/Performance_tests/109G_MT215/109G2_MT215_en.html

 

The F4 in the game climbs to 6 k in just under 5mins 

 

I believe the F-4 has 1,42ata and the G-2 has 1,30ata (derated) in the sim. This means the F-4 is both lighter, and at least at lower altitudes, it also has more power.

 

Keep in mind that the F-4 datasheet climb times qouted above refers to 1,30ata rating (1200PS at takeoff), while in-game I believe you have the the full rating of 1,42ata (1350 PS). So F-4 should climb better at full 1,42ata power than the datasheet on my site suggest.

[Anw.StG2_Tyke]

I believe the F-4 has 1,42ata and the G-2 has 1,30ata (derated) in the sim. This means the F-4 is both lighter, and at least at lower altitudes, it also has more power.

 

Keep in mind that the F-4 datasheet climb times qouted above refers to 1,30ata rating (1200PS at takeoff), while in-game I believe you have the the full rating of 1,42ata (1350 PS). So F-4 should climb better at full 1,42ata power than the datasheet on my site suggest.

He climbed at 1.30 ata 270 Km/h as stated in his first post. So yes the 109 F-4 is definitly overperforming in climbing, I tested it yesterday evening also. But Funnily not that mutch compared to the Yak-1. I don't have the data aviable now but I think it came out only a bit slower than the 109.

[LukeFF]

 Maybe when the FMs and stuff are being opened for modders. Guys like Team Fusion are surely up for stuff like that

 

Not gonna happen.

[RydnDirty]

Wow the Yak1 is not much slower in climb to 6k than the F4 is now?! I haven't tested the yak1.

 

I still have fun playing BOS as it is now,warts and all, but hopefully the devs will continue to improve the flight models over time.

 

At this stage I can see that getting the flight models close to reality with this level of fidelity takes a lot of time and fine tuning.  It took cliffs of dover years of fine tuning to get as good as it is now. DCS Fw190 and Bf109K4 have both got problems too.

[Leaf]

It's been said so many times now:

If you've got evidence to suggest that in-game FM's are not correctly modelled, send a concise PM to Han and he'll look into it. 

And no, for heaven's sake, please don't open FM's to modders. The game's got enough issues as it is.

[RydnDirty]

I sent PM  to Han. He replied. I installed the new patch and the problem appears to be fixed. At least the bf109F4 now takes a little under 6mins to 6km.  Very good to see. 

[303_Kwiatek]

Funny casue there is not any info about these in patch notes?

 

 

Wonder if he replay about overperforming Yak-1 and LAgg-3 at high alts also?

Edited March 2, 2015 by 303_Kwiatek

[6./ZG26_5tuka]

Most likely placebo? I've read more abboout FM changes in posts rather than patchnotes and whenever I launched the game it always felt the same ("very familiar") to me. As recent FM tests showed the 109 still overspeeds even in ISA condition so there's no doubt something is wrong with it.