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View Full Version : New CEM guide at Eastern Skies



michapma
01-25-2004, 01:37 PM
I need help with your feedback!

For a long time now I have been working on compiling knowledge on complex engine management (CEM). I started writing it down last August, and that led to the realization that I didn't know enough, so I kept researching and reading and writing. I got stopped for a few months, but lately I've made a comback and now I think it's far enough that the incomplete parts won't confuse anyone. Vulgar's guide has helped a lot of people, but I wanted to take things further, get a bit more in-depth, and find that balance of usefully technical without going overboard. It wasn't easy.

In short, there is now a fairly comprehensive guide to CEM in Forgotten Battles! Yea!! At long last! http://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif It is a bit of a read though, since it's meant to be extensive. Grab yerself a cup of whatever, relax and go to

http://people.ee.ethz.ch/~chapman/il2guide/cemguide/intro.htm

and have a good read. It's structured as logically as I could make it, so you can navigate to the part you want to read first if that suits your fancy. Tomorrow I will finally integrate it into the main navigation table of Eastern Skies.

I really am serious about the help part. There are bound to be mistakes. I really want to make it better, and as clear as possible, since this is a hot and seemingly mysterious topic in FB. If you have any ideas about how to improve it, I wanna hear it. If you find any technical mistakes or something that might confuse, let me know. I'm especially keen to get specifics on special WEP systems and prop/rpm management in the German planes. Maybe, just maybe, Luftwaffe pilots who use variable-pitch will be able to learn how to read and use the "clock" propeller setting gauge! I just need to gather the info. I just wrote a bunch this weekend, so a couple of sections have not been proof-read. Spelling and grammar corrections are welcome too.

No, it's not finished yet. There are dead links in the navigation table, and parts that just say "To do..."

I really hope this can expand and become a source of reference for all of us.

Cheers everyone,
Mike

http://www.baseclass.modulweb.dk/69giap/fileadmin/Image_Archive/badges/69giap_badge_chap.jpg (http://giap.webhop.info)

The ongoing IL-2 User's Guide (http://people.ee.ethz.ch/~chapman/il2guide/) | Forgotten Skies (http://www.forgottenskies.com/)

[This message was edited by michapma on Mon January 26 2004 at 08:58 AM.]

michapma
01-25-2004, 01:37 PM
I need help with your feedback!

For a long time now I have been working on compiling knowledge on complex engine management (CEM). I started writing it down last August, and that led to the realization that I didn't know enough, so I kept researching and reading and writing. I got stopped for a few months, but lately I've made a comback and now I think it's far enough that the incomplete parts won't confuse anyone. Vulgar's guide has helped a lot of people, but I wanted to take things further, get a bit more in-depth, and find that balance of usefully technical without going overboard. It wasn't easy.

In short, there is now a fairly comprehensive guide to CEM in Forgotten Battles! Yea!! At long last! http://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif It is a bit of a read though, since it's meant to be extensive. Grab yerself a cup of whatever, relax and go to

http://people.ee.ethz.ch/~chapman/il2guide/cemguide/intro.htm

and have a good read. It's structured as logically as I could make it, so you can navigate to the part you want to read first if that suits your fancy. Tomorrow I will finally integrate it into the main navigation table of Eastern Skies.

I really am serious about the help part. There are bound to be mistakes. I really want to make it better, and as clear as possible, since this is a hot and seemingly mysterious topic in FB. If you have any ideas about how to improve it, I wanna hear it. If you find any technical mistakes or something that might confuse, let me know. I'm especially keen to get specifics on special WEP systems and prop/rpm management in the German planes. Maybe, just maybe, Luftwaffe pilots who use variable-pitch will be able to learn how to read and use the "clock" propeller setting gauge! I just need to gather the info. I just wrote a bunch this weekend, so a couple of sections have not been proof-read. Spelling and grammar corrections are welcome too.

No, it's not finished yet. There are dead links in the navigation table, and parts that just say "To do..."

I really hope this can expand and become a source of reference for all of us.

Cheers everyone,
Mike

http://www.baseclass.modulweb.dk/69giap/fileadmin/Image_Archive/badges/69giap_badge_chap.jpg (http://giap.webhop.info)

The ongoing IL-2 User's Guide (http://people.ee.ethz.ch/~chapman/il2guide/) | Forgotten Skies (http://www.forgottenskies.com/)

[This message was edited by michapma on Mon January 26 2004 at 08:58 AM.]

Tempestate
01-25-2004, 05:40 PM
thanks mike

is there a downloadable version I can print then read o n paper

ZG77_Lignite
01-25-2004, 07:25 PM
Wow Wow! Great work Michampa, lots and lots of great work there. I haven't even gotten through it all yet, but just like you said, you can pick and choose to read the part your interested in at the time.

I hope everyone points to this when people ask 'how do I use CEM'.

Nothing against the works over at Mudmovers, but in my opinion, some of the stuff they have on prop pitch/power settings is out of date, if not outright incorrect.

horseback
01-25-2004, 07:31 PM
Temp-

there's always the old cut & paste!

cheers

horseback

"Here's your new Mustangs, boys. You can learn to fly'em on the way to the target. Cheers!" -LTCOL Don Blakeslee, 4th FG CO, February 27th, 1944

VW-IceFire
01-25-2004, 07:42 PM
Impressive piece of work. Seemingly well researched, well put together, effective design and useful diagrams.

One thing I could sort of ask for (having only just skimmed over it) is a heading in some areas that very briefly sums up and suggests to players how they can use a particular function. For instance prop pitch. Lots of explanation is fantastic but some will want to go in and read "prop pitch should be set to high percentage when and low percentage when". Like a very quick reference section to backup the more indepth and elaborate descriptions. That could be my only constructive critique I can level at this. Its certainly QUITE good.

Well done!

- IceFire
http://home.cogeco.ca/~cczerneda/sigs/temp_sig1.jpg

ZG77_Lignite
01-25-2004, 07:49 PM
One thing I see Michapma, and it is rather minor (maybe even arguable). In the section 'Controlling RPM', under the 'AeroMechanical Screw' paragraphs;

You state the FW190A series has Only the 'AeroMechanical Screw'. I would disagree with this, and say it has both an 'automatic system' (Aeromechanical screw if you like, or historically speaking the Kommandergerat system) and a CSP system. I believe in FB in 'Manual mode' it acts as a Constant Speed Prop (like P47 or La5FN).

I also believe this is now true for both FW190A series and FW190 D series (changed in a patch).

One other minor note, in the same section (Controlling RPM) under the 'Fixed Pitch Prop' section, it states at the end both the TB-3 and P-11c have fixed props. As it now stands in FB the P-11c is fitted with a constant speed prop. Whether this is historically correct or not I do not know (it has been argued both ways). At this point in FB, I believe the TB-3 is the only aircraft 'old' enough to still use a Fixed Pitch Prop (certainly may change in the future).

Bearcat99
01-25-2004, 07:53 PM
Mike I like the way you set your site to have 3 different skins!!! Nice !!

<UL TYPE=SQUARE>http://www.jodavidsmeyer.com/combat/bookstore/tuskegeebondposter.jpg (http://tuskegeeairmen.org/airmen/who.html)[/list]<UL TYPE=SQUARE>vflyer@comcast.net [/list]<UL TYPE=SQUARE>99thPursuit Squadron IL2 Forgotten Battles (http://www.geocities.com/rt_bearcat)[/list]
UDQMG (http://www.uberdemon.com/index2.html) | HYPERLOBBY (http://hyperfighter.jinak.cz/) | IL2 Manager (http://www.checksix-fr.com/bibliotheque/detail_fichier.php?ID=1353) | MUDMOVERS (http://www.mudmovers.com/)

Old_Canuck
01-25-2004, 11:36 PM
Mike, a user named "pye" wrote an excellent article on prop management for the 109 series. After a few days of following his instructions I've been getting a lot more fun out of it. Man can it ever climb when the settings are right. I wonder if he would be willing to help also. Here's the link:

http://forums.ubi.com/eve/forums?a=tpc&s=400102&f=23110283&m=139102451&r=675101951#675101951

OC

"You don't stop playing because you grow old, you grow old because you stop playing."

michapma
01-26-2004, 12:51 AM
Tempestate, it might be a good idea to make a mini-guide as PDF, but I will wait until it's finished if I do so. I'm afraid cut-and-paste might be your best option for printing right now, sorry.

IceFire, a quick reference is a good suggestion and something I've planned to do, but I'll have to think how to do it because it might encourage people to oversimplify. For now I guess people can go to "power settings" and read the "Summary:" statements for a quick reference.

Lignite, good comments. I guess I need to sit down and methodically test each propeller system, I think I was going by the PDF compiled at Tailspin's site when I wrote that. I'm really interested in finding a flight manual for FW-190 models (though I don't want to pay a lot for it), as there does not seem to be a lot of this kind of technical information for them on the Internet. I have a couple of books that I need to scan through though that migh have historical info. As far as switching out of auto mode, I seem to recall reading on the forum that it does behave like a CSP prop. Kind of funny!

Thanks, Bearcat. I've wondered if anyone noticed that. I owe the idea to Simon Griffee, who got it from CSS authors. CSS sure is powerful. Swtiching between styles is done with Javascript, that's the only script on my site. (The pop-up windows are pure CSS.) Sure do wish I didn't have to hack my own code to please Internet Explorer though... http://ubbxforums.ubi.com/images/smiley/16x16_smiley-indifferent.gif

Old_Canuck, I read Pye's thread, and he sent me an email, I think by on your suggestion. http://ubbxforums.ubi.com/infopop/emoticons/icon_smile.gif His thread prompted some comments in the section on variable-pitch prop systems, and I put a link to that thread in that section. After all, I'm not 109 driver, so I can't exactly offer hot tips.

Thanks all for the feedback everybody, it's a great start! Let's see, if I test three aircraft every day, then it'll only take me another month... http://ubbxforums.ubi.com/images/smiley/16x16_smiley-wink.gif

http://www.baseclass.modulweb.dk/69giap/fileadmin/Image_Archive/badges/69giap_badge_chap.jpg (http://giap.webhop.info)

The ongoing IL-2 User's Guide (http://people.ee.ethz.ch/~chapman/il2guide/) | Forgotten Skies (http://www.forgottenskies.com/)

Tempestate
01-26-2004, 01:24 AM
no worries Mike

thanks all

jobace
01-26-2004, 01:39 AM
thanx man
very usefull

michapma
01-26-2004, 09:52 AM
I've integrated a link for the CEM guide into the main navigation table on the left.

http://www.baseclass.modulweb.dk/69giap/fileadmin/Image_Archive/badges/69giap_badge_chap.jpg (http://giap.webhop.info)

The ongoing IL-2 User's Guide (http://people.ee.ethz.ch/~chapman/il2guide/) | Forgotten Skies (http://www.forgottenskies.com/)

michapma
01-27-2004, 04:40 AM
bump

http://www.baseclass.modulweb.dk/69giap/fileadmin/Image_Archive/badges/69giap_badge_chap.jpg (http://giap.webhop.info)

The ongoing IL-2 User's Guide (http://people.ee.ethz.ch/~chapman/il2guide/) | Forgotten Skies (http://www.forgottenskies.com/)

nutt3r
01-27-2004, 09:29 AM
very nice thanx mate http://ubbxforums.ubi.com/infopop/emoticons/icon_biggrin.gif

http://img13.photobucket.com/albums/v38/nutter/5333a4bd.jpg (http://members.lycos.co.uk/hellsgazelles/)

michapma
01-28-2004, 03:25 PM
Another pothole in this thread's BUMPy road to success http://ubbxforums.ubi.com/images/smiley/16x16_smiley-wink.gif

http://www.baseclass.modulweb.dk/69giap/fileadmin/Image_Archive/badges/69giap_badge_chap.jpg (http://giap.webhop.info)

The ongoing IL-2 User's Guide (http://people.ee.ethz.ch/~chapman/il2guide/) | Forgotten Skies (http://www.forgottenskies.com/)