Fulqrum Publishing Home   |   Register   |   Today Posts   |   Members   |   UserCP   |   Calendar   |   Search   |   FAQ

Go Back   Official Fulqrum Publishing forum > Fulqrum Publishing > IL-2 Sturmovik: Cliffs of Dover

IL-2 Sturmovik: Cliffs of Dover Latest instalment in the acclaimed IL-2 Sturmovik series from award-winning developer Maddox Games.

Reply
 
Thread Tools Display Modes
  #1  
Old 08-05-2012, 10:35 PM
Sutts Sutts is offline
Approved Member
 
Join Date: Jan 2010
Posts: 566
Default

Quote:
Originally Posted by jf1981 View Post
Hi all,

I would like to have the word of the devs in terms of when they will finally plan the patch that deals with
- main graphic performances issues
- aircraft performances

Please ?

It's now completely unfair, just for example, we had tonight an online campaign and as a hurricane pilot, I've just had three major issues :

First off, I burned the egine for climbing at 2800 rpm and was later told more than 2400 will cook the engine

Respawn.

Second, It took so long time to get at 17'000 ft only to find I can't exceed 120 mph IAS, I checked in the archives, the Hurricane Mk.I made IAS 230 at 15'000 and climbed to 30'000.

Shot down by 109 apparently dive zooming with a lot of energy on the all of us, Hurricane.

Finally, I had once more the usual 1 frame per second whenever there was many aircrafts around me.



It's not possible to drive any campaign in those conditions, and further and finally, it is a long time since we last had the information that developpers were aware of our problems.

So nearly a year and a half passed its existence, is there a will from the development to finally make the game perform correctly ?

It's playable as low flying short distances dogfight, Spit IIa versus 109, lower than 8000 ft, and not too much players around.

Passed that situation, nothing good much possible, that is an historical battle.

It is more than ever time to let us know what is happening. Each patch comes with problems to deal with.
We have seen much improvements in the first weeks, and as soon as it reached some quite stable and about correct performance, it just stopped to be really improved but it's not yet, in my opinion, where it should have been before even being realeased ready for public.

But we're - some of us - great fans of IL-2 and we desperately expect the right patch.

Please do something about it and keep us informed.

I would have thought your boost setting was a more important factor in cooking the engine than your RPM. With a constant speed prop you could maintain 2800 RPM while using excessive boost - that would surely fry your engine. Would be good to know the full picture - boost / mixture settings and speed, oil and coolant temps during the climb.
Reply With Quote
  #2  
Old 08-05-2012, 11:37 PM
jf1981 jf1981 is offline
Approved Member
 
Join Date: Nov 2010
Posts: 334
Default

Quote:
Originally Posted by Sutts View Post
I would have thought your boost setting was a more important factor in cooking the engine than your RPM. With a constant speed prop you could maintain 2800 RPM while using excessive boost - that would surely fry your engine. Would be good to know the full picture - boost / mixture settings and speed, oil and coolant temps during the climb.
That's what I'd expect however the boost is regulated and kept below 6 1/4. There should be no danger of continuously running at that boost if revs are kept below 2850 which shall be the max continuous revs.

That's about what you find for the Merlin II engine. I prefer to run at 2600 because the sound is more comfortable.

Danger on engine lifetime comes from overboost when it's available and max revs, however the engine should handle it, only resulting in shorter maintenance and ultimately lifetime, but that's currently beyond Cliffs of Dover.
Reply With Quote
  #3  
Old 08-06-2012, 08:20 AM
Sutts Sutts is offline
Approved Member
 
Join Date: Jan 2010
Posts: 566
Default

Quote:
Originally Posted by jf1981 View Post
That's what I'd expect however the boost is regulated and kept below 6 1/4. There should be no danger of continuously running at that boost if revs are kept below 2850 which shall be the max continuous revs.

That's about what you find for the Merlin II engine. I prefer to run at 2600 because the sound is more comfortable.

Danger on engine lifetime comes from overboost when it's available and max revs, however the engine should handle it, only resulting in shorter maintenance and ultimately lifetime, but that's currently beyond Cliffs of Dover.
Yes, doesn't sound like you were abusing the engine. Perhaps the cooling model is at fault and the engine is simply running hotter than it would in reality at the climb power setting. In the game it only seems to take a few seconds of over temp to screw the engine up.

Perhaps next time you try it you could watch the oil and water temps carefully and record any excessive temps that occur during the climb. A recorded track would be even better.

Cheers
Reply With Quote
  #4  
Old 08-06-2012, 08:30 AM
IvanK IvanK is offline
Approved Member
 
Join Date: Oct 2007
Location: Australia
Posts: 886
Default

"I've also learned that it should'nt be the case since they are normally auto rich and auto lean so lean shall work better in theory."

Not really Auto lean is really only of use for cruising and has Max boost limitations associated with its use.

Currently in game if run Boost cut out you need to push the mixture lever forward to AUTO lean to get smooth engine operation. This is of course totally wrong and should result in engine issues pretty darn quick.

SPIT MKII Boost limitation in Auto lean is +4/2650 100 Octane or 2.25/2650 at 87 Octane.

Spit MKI Boost Limitation in Auto Lean is +2.25/2600 87 Octane.

Unless you are really interested in best fuel consumption then Auto Rich is all you should really need.
Reply With Quote
  #5  
Old 08-06-2012, 11:02 AM
jf1981 jf1981 is offline
Approved Member
 
Join Date: Nov 2010
Posts: 334
Default

Quote:
Originally Posted by IvanK View Post
"I've also learned that it should'nt be the case [...] Unless you are really interested in best fuel consumption then Auto Rich is all you should really need.
I am indeed. When we do fly some historical battels, most of us are falling down due to lack of fuel or lack of lifting surfaces generally.
Reply With Quote
  #6  
Old 08-06-2012, 02:09 PM
FFCW_Urizen's Avatar
FFCW_Urizen FFCW_Urizen is offline
Approved Member
 
Join Date: Jul 2011
Location: Munich, Germany
Posts: 297
Default

AFAIK jf, the Merlin can handle 6.25 lbs/3000rpm only for 30 mins, before issues occur. However, as it is now, you are lucky if you can go 2800rpms without cooking your engine and that is in level flight.
__________________


Quote:
Originally Posted by 41Sqn_Banks View Post
The devs need to continue to tweak the FM balance until there is equal amount of whining from both sides.
Reply With Quote
  #7  
Old 08-06-2012, 02:18 PM
FS~Phat FS~Phat is offline
Approved Member
 
Join Date: Dec 2010
Posts: 609
Default

Ive found if you apply a bit of common sense and watch your temperatures you can get by. Ive run with boostcut and water temp up to 120c and oil to 97c for about a couple minutes without failure but water needs to be mostly under 110c and oil 95c to avoid damage. With temps properly managed I have run boostcut continuously for 30mins without any noticeable damage.
Reply With Quote
  #8  
Old 08-06-2012, 10:59 AM
jf1981 jf1981 is offline
Approved Member
 
Join Date: Nov 2010
Posts: 334
Default

Quote:
Originally Posted by Sutts View Post
Yes, doesn't sound like you were abusing the engine. Perhaps the cooling model is at fault and the engine is simply running hotter than it would in reality at the climb power setting. In the game it only seems to take a few seconds of over temp to screw the engine up.

Perhaps next time you try it you could watch the oil and water temps carefully and record any excessive temps that occur during the climb. A recorded track would be even better.

Cheers
I really think the real aircraft handles its nominal climb boost and revs up to the top, that is 2850 rpm 6 1/4 boost up to 30'000 ft, and we're still far from that.

Should be cross checked, but in my mind, it should handle that.

But I really think that's side effects from inadvertant engine and flight model changes. They are not documented anywhere that I know and one has to try to see what is working and what is not.
I used to read the historical manual, but what you find does'nt essentially apply to CoD.
Reply With Quote
  #9  
Old 08-05-2012, 11:39 PM
FS~Phat FS~Phat is offline
Approved Member
 
Join Date: Dec 2010
Posts: 609
Default

Boost and maybe mixture settings may be the culprit.
I havent flown the Hurri in the latest patch but the spit requires careful attention to RPM, Boost, Mixture and Prop Pitch to manage RPM/Boost, or it will fail after about 10mins of abuse.

In particular I now have to manage mixture which I havent had to do before the patch. The Hurri maybe different but just something to consider.
Reply With Quote
  #10  
Old 08-05-2012, 11:42 PM
jf1981 jf1981 is offline
Approved Member
 
Join Date: Nov 2010
Posts: 334
Default

Quote:
Originally Posted by FS~Phat View Post
Boost and maybe mixture settings may be the culprit.
I havent flown the Hurri in the latest patch but the spit requires careful attention to RPM, Boost, Mixture and Prop Pitch to manage RPM/Boost, or it will fail after about 10mins of abuse.

In particular I now have to manage mixture which I havent had to do before the patch. The Hurri maybe different but just something to consider.
Yes, to be considered.
If it's modelled right, mixtures pulled back is rich, then it shall be ok. And when pushing away, the engine's rough under many conditions.

I've also learned that it should'nt be the case since they are normally auto rich and auto lean so lean shall work better in theory.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 12:17 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright © 2007 Fulqrum Publishing. All rights reserved.