Last Updated last on May 9, 2002.


So you downloaded In Defense of Australia – 1942 version 2.0 and you still have a few questions even after reading all the documentation supplied?


Jorge and I thought that this page may well serve as a vehicle to answer any lingering questions about the project overall - or about the contents – or about the installation, or – you name it!


We will start off small and grow a bit in content over the next few weeks.


We may share additional thoughts and feelings that just didn’t seem to fit in the already rather long documentation that accompanied the package.


Additionally, this page will serve as a support page.


Questions are bound to crop up over time and may be asked of us via email or alternatively, they may show up in any of the popular Combat Flight Simulator forums.  We may choose to answer these questions here and provide a link to this page from elsewhere.  We will do our best to group the subjects and index them with a linked table of contents if the discussion grows in scope.


But wait!


You say you haven’t downloaded the project yet?   Why didn’t you say so in the first place?


Well then, ‘click’ on the image link below:



O.K.  It is a relief to know that you have the project finally!


Table of Contents


Installation Considerations

                   How do I know I have the latest version?

                   May I host the package as well?

                   May I install the package to my computer wherever I see fit?





The Kittyhawk Ia 3D Modeling Considerations

Are you going to continue to develop the Kittyhawk model?

What about those ‘teaser” images on the JamCraft site?

The Kittyhawk Ia Flight Dynamics

Emergency Landing Procedures

The New P-40E Panel

Fuel Management Considerations

Fighting the Betty and the Nell Bombers

They are still pretty murderous.  Didn’t you adjust the damage Profile?

Campaigns and Missions          

Help!  I am getting an error message!

Scenery Issues

Do you see yellow squares?  No?  Why do I see them, then?

I think I may be “seeing double” at Port Moresby and Dobodura?

May I keep my original Port Moresby and also the new Dobodura scenery?


Let’s launch right in to a discussion of one of the things that may turn up first.  These would be questions concerning the installation itself.


Installation Considerations.


1.      There is a rumor that RAAF_Expansion_V2b.EXE is now up and ready for download.  Any truth to this rumor?


J&J  The package has been up for a few days now and . . .


No bug reports thus far, though there have been a few questions raised that have been addressed here and elsewhere.


For the few among you who may need to upgrade from version “a” to version “b,” here is a “Do-it-yourself-kit.”


IDoA “a” to “b” DIY kit here


If I receive a request for an auto-install version of the above, I’ll issue one shortly thereafter.


2.      I understand there was a version up only for about 24 hours or so?  After that, there was a version whose file name is RAAF_Expansion_V2a.EXE for a couple of days. What should I do if I have either version and how do I know that I have the latest or “right” one?


J&J  The previous version of the file was labeled RAAF_Expansion_V2a.EXE.  The very first beta version did not have the “a” appended to the end.  There were a couple of “bugs” reported and we temporarily “pulled” the file.  RAAF_Expansion_V2b.EXE is now up!  Future changes, if needed, will result in a file appended with a later letter as in “c” or “d” if it is deemed necessary and there will be an explanation provided right here!


If you had the beta version, please uninstall it and download the “b” version.


This Version 2.0 installation is far more complex than the original version 1.0 and we simply wish to be sure that there were no other oversights.


3.      I have the “a” version and it seems fine to me, do I really need to upgrade or replace it?


J&J  The “a” version had two minor bugs and one problem that we had difficulty duplicating.  The guns origin point for the Kittyhawks was off slightly (now fixed) and the editing of the country.cfg did not always update the allegiances (now fixed.)  We were left with a condition where mission two occasionally crashed CFS2 back to the desktop.  Jorge has completely rewritten mission two and it has passed initial QA/QC.


Thanks to Hermann (Krazy,) Peter (GGolob) and George (CH_T-6) for good bug reports.


4.      Will we be seeing the package appear in the usual places, such as Flightsim, Netwings and Simviation?


J&J  Nels, Jon, Pete and Doug and a few others will be welcome to host the package this time around as they were the first time around, but we are holding it exclusively to the Chaps and JamCraft for about a week, just in case there are changes to be made.  We don’t want to inconvenience these fine hosts by sending them more than one release version of the file.  Once it has a final stamp of approval, we will send out the invitations.


5.      I have a private site.  May I host your package there as well?


J&J  This time around, we are going to further restrict the number of private sites for reasons that may be obvious.  We want to preserve the integrity of the package and we want to make sure as many of the recipients “go through channels” and get to read this FAQ page as possible.  Also, if we update the package from time to time, as is likely, we want to be certain that there are only a very small number of places where notice and upload are necessary.  So the answer is probably a very polite “no.”  We do hope you understand.


6.      I downloaded the project, but I am a little nervous about just ‘clicking away’ and hoping for the best.  Is there any way I can see what you guys are doing to my computer before committing to the installation?


J&J  Thanks to a little nudging on the part of Paul Hauschildt, Joe provided for the possibility of downloading the project into a “dummy” directory.  Instead of accepting the default, you may direct the installation to any temporary directory of file folder and examine the results after the installation runs.  This was a little tricky to accomplish because a few files were actually edited or appended to during the installation.  What happens if they are not there in the first place?  The installation could simply abort.  What we did though, was to provide “dummy” or temporary files for you airbases.dat, country.cfg, scenery.cfg and mdlnames.txt to serve as placeholders to allow you do install to this dummy installation.  These placeholders will only install if your original files are missing or if you install into a “dummy” directory.  You will see appropriate messages to that effect if you travel down this path.


7.      If I am satisfied that the installation package is “good to go” can I use these “dummy” files?


J&J  In a word, “no.”  If you are satisfied, you should go ahead and uninstall the temporary installation using ADD/Remove Programs first and then reinstall into one or more of your Combat Flight Simulator 2® directories.  The package should be smart enough to find at least the first of these, but you may have more than one installation and you may install into more than one by directing the package as appropriate.


8.      I don’t really like your answer!  I would rather assemble the pieces and do a little editing on my own.  How can I accomplish this?


J&J  You are a “tough customer!  You can certainly move the aircraft, gauge, campaign, mission, objects_dp, scenedb, sound and UIRES files manually where they belong.  You will then have to edit the four files listed above manually as well.  These files are nothing more than text initialization or “ini” files that may be opened and edited with Notepad.


9.      How do I edit these files?  What are they used for and why do I have to edit them?


J&J  Simple question, but the answer is a little involved.  Let’s look at these files one at a time, shall we?  We’ll save the tough one until last.   This ought to be the lengthiest and most involved issue in the FAQ.




Airbases.dat is found within your Combat Flight Simulator 2/INFO folder.


This file is not actually needed in this package, but eventually, you will be glad that it is there.  The airbases.dat is an index file used by Mission Builder® and it contains the starting position and orientation of aircraft for take offs and for approaching the runway of airbases.  Mission Builder® uses this information, but so does the “M” and “I” keys while playing the game.  If you are in a mission that uses these airbases and you ‘hit’ these keys and there are no appropriate entries in the file, then the game could crash to the desktop.


The reason we say that these entries are not necessary this time around is that Jorge designed truly exquisite new scenery for the airfields or aerodromes around Port Moresby, but he does not actually call them up or use them in the missions this time around.


So airbases.dat entries were provided by Jorge for future use and for other third party folks to call up these new airfields.  Future designers wanting to use these airbases will not ever have to worry about the airbases.dat issue.  Pretty neat, eh?


The installation package adds 13 new entries.  Some of them are double entries that allow two aircraft take off side by side.  The default number of entries in the game is 123.  The installation package picks up where the last entry leaves off and goes on from there.  In the case of a default installation only, this would mean entries from 124 through 136.


There is a list containing the data for these entries in the documentation.  Look within the Combat Flight Simulator 2 ADDON/IDoA-42v2 folder.




This file is found in your Combat Flight Simulator root directory.


This simple text file indexes your scenery layers for you.  For each new scenery installation, there needs to be a scenery layer entry.  Typically, when you install a new scenery package, you need to manually activate the scenery layer.


Well . . .


We took the worry out of this issue for you.  We open up your scenery.cfg file and enter a few lines of data and this has the same effect of activating the scenery, only this time, we did the work in advance for you.  The actual entries are as follows:










The number “15” is merely used for illustration.  We actually parse the file and pick the next available layer beyond that which is already there.




This file is found in your Combat flight simulator 2 root directory.


Like the other files above, this is another index file.  In this case, mdlnames.txt contains a list of all the peripheral weapons loadouts that appear in the game.  For our purposes, we make a single entry into this file to accommodate the U.S. 52 Gallon Drop Tank.


We sandwich the data here:


"wep_us_lightning_drop_gp"=U.S. 150 gal Drop Tank

"wep_us_warhawk_drop_gp"=U.S. 52 gal Drop Tank

"wep_us_corsair_drop_gp"=U.S. 175 gal Drop Tank


Yes, you may add this manually, but why would you want to bother to do so?


If this data were missing, then the drop tank would show up as a choice called: “wep_us_warhawk_drop_gp.  This would be far from an elegant solution.  This file is nothing more than an alias file.




The country.cfg file is found in the Combat Flight Simulator 2 root directory


We saved the “best” until last.


This file is very important to you; take our word for it!


During the development of the first version of this project, it was Jorge who discovered that the limitations of having only four country listings, Britain, Germany, U.S.A. and Japan as provided in the original Microsoft country.cfg file would lead to a small disaster.  If third party developers were to willy-nilly pick their own numbers subsequently from number five (5) on to the limit of only 19, then future work would be negated or stepped upon by well-meaning developers who chose the same numbers for to represent different countries.


This file is used to select the language spoken, either English or Japanese, for each country as well as allegiance, whether Allies or Axis and importantly, the set of “nationality screens” called up during mission and campaign play.


You may guess at the mess if folks started using the same number for different countries.


Jorge developed the list and presented it to Microsoft for approval.  Eventually it was “blessed” and made part of an SDK (software developer kit) data release.


When version 1.0 of IDoA-42 was released, the issue was very simple.  Jorge and Joe just provided the file with the 19 country listings that would eventually become the Microsoft standard.


So why did was it a bit vexing to handle the file this time around?


Because the issue is no longer so simple.


Since the early days of CFS2, other third-party developers have used the proper designations, but they have one-by-one appended data to this file to call up unique sets of nationality screens or UIRES.


If Joe and Jorge simply provided the original file this time around, the work of other developers would effectively be disabled.  Their screens would not be called by their missions and campaigns files any longer.


So . . .


Though it caused a delay in release of a couple of weeks, Joe, with consultation from Paul Hauschildt, was able to effectively disassemble this file and edit it without removing any of the new data. 


One big word of warning!


If you have used a scheme that is different from the original and you have data other than for Australia in the [country.10] location, the new missions will not work.  You will have to sort this all out.  We are willing to support the standard file format, but not unique one-of-a-kind-formats,


We think this is not very likely to be a problem, but here it is laid out for you to consider in this FAQ.


Do you want to examine the original reference file developed by Jorge that became the Microsoft standard?  Click below to download it.  It opens with Notepad.


SDK country.cfg


If you know that you do not have Australia listed as [country.10] then you will have to open your own, unique country.cfg and add the information contained in the following reference file:





The Kittyhawk Ia 3D Model Considerations.


1.    I noticed right away that the Version 2.0 model is more detailed than version 1.0, but there are still some things “missing,” like visible propeller disk and landing gear in the AI aircraft and parts aren’t flying in all directions either?


Joe  Schuftie and her sister are still FSDS-designed models that have been animated with Aircraft Animator and SDLEdit.  I think I have brought them along as far as I can with these tools.  Will I take the Kittyhawk/Warhawk family further?  Yes, given enough time.


At this point, it is possible that Louis Sinclair will update FSDS to a version 2.0 and that he may include provision for native animations.  If this happens, an update is assured.  Most likely, this will be version 2.5.


There are some in the community able to do extensive manual editing with SCASM coding.  I may get some help at some point?  However, I may just bring the model through gmax® and then the need for “custom” editing will be obviated.  When I do move in this direction, there will be some notice here and elsewhere.


2. You’ve teased us on this site with a few screen capture images of USAAC versions of the P-40E, what can you tell us about that?


Joe  Well . . .  I confess that I have a number of other USAAC variants in my private hangar as well as a couple of P-40K-5s and a P-40N underway.  I can’t say when these planes will fly or even if they will be available before CFS3 comes out, but I can tell you that they will eventually be available one way or the other.


Time marches on.  Jorge and I have conceived of a project for CFS2 some time ago even more ambitious than the present one, but CFS3 is coming and we need to adjust our priorities to stay current with the fast-moving technological changes.


Microsoft continues to leverage available technology while trying very hard not to leave folks with last year’s computers behind.  It is no easy task, but the down-side is that the third-party developer community cannot rest on its laurels or remain too comfortable with the tools that were good enough six months ago.


So do we continue to work on CFS2-related matters or move on to CFS3?  We have to move on, no question about it.


I guess I may have digressed a little, eh?


The Kittyhawk Ia Flight Dynamics


1.    In IDoA-42 version 1, the P-40E could not crash-land. It is possible in version 2, I see.  How do I best survive a crash-landing? And when should I crash-land instead of jumping?


Jorge  The flight dynamics scrape points have been designed mostly considering the crash landing attitude during the run and at rest once stopped.


To crash-land, release the drop tank (actually this is realistic but won’t have anything to do with in CFS2, because the drop tank has no scrape points). Approach the landing surface, flying it barely a few feet from ground and reduce speed slowly until you contact with ground. Do not raise or lower the nose more than appropriate to fly horizontal over the ground. Once you touch down, throttle fully back and wait until stop.


Remember to get out of the cockpit as CFS2 will always blow your aircraft after about 20 seconds from stopping.


Crash-landing can save your life when you are low enough that jumping would kill you. And if you are in the allied side of a mission you will return to fight another mission.


The New P-40E Panel


1.      How do the fuel gauges work in the panel?


Jorge  In my answer I assume that you are flying with full realism as to fuel concerns.


The P-40E fuel system has three gauges on the left part of the panel:


1-  A fuel quantity gauge

2-  A fuel tank selector

3-  A low fuel warning light


The fuel quantity gauge measures the total percentage (or fraction) of fuel onboard, without considering the drop fuel tank capacity, that is F (full) corresponds to 149 gallons. If you are carrying a drop tank you have 52 extra gallons, so you are carrying 201 gallons. The fuel quantity gauge will remain in F until the total fuel on board goes below 149, where the needle will start dropping down.


The fuel selector allows you to choose which tank you will be drawing fuel from to burn in your engine. If you forget to switch the fuel tanks, your engine will stall and you will need to switch immediately to a tank that has fuel (remember Lindbergh in the Spirit of St. Louis movie?).


The fuel low warning lamp will light when your fuel is dangerously low. If you are near your airfield do not loose time and land immediately. If you are far from home get ready to land or crash-land on a flat field in some valley.


Warping should take care of your fuel selection.


2.  So how should I manage my fuel?


Upon take-off, be sure to select the drop tank. Ranges in IDoA-42 missions are short.  Over the target, release the drop tank with Shift-3 followed by 3 and 3 again. Select a fuel tank in the fuselage. Leave the wing tanks to return to your home airfield.


Fighting the Betty and the Nell Bombers


1.  The documentation says that the Betty has been changed to be less fire effective, but when I approach the tail I get massacred as with the original DP. Can you explain what the DP change is all about?


Jorge  The first part of this is a little technical.  CFS2 introduced a bug that was never fixed by Microsoft and that was the fact that the damage profile “dice throw” can’t be changed from 1d1 no matter what you write there.  Just as you would imagine, the “damage dice” setting is supposed to control the probability or odds of causing damage from ammunition hits.  Normally, the effectiveness can be altered by changing these settings.


So what did we did I do reduce fire accuracy? I changed somewhat the ammo weight and restricted the gun sweep angle.


The Betty has a tail gun. If you place yourself right behind the tail, the Betty will be almost as effective as it was in the original DP. The trick is to go a little bit below or to the sides (better below). If you go a little bit above, the upper turret can catch you!


The Nell does not have a tail gunner but has a pair of deadly side guns aimed to the rear quarters. The best way to take out a Nell is approaching it from the rear and below.


But if you are attacking formations, how do you approach? Manage first the lower aircraft in formation, but take care in a Nell formation. The side guns are aimed low.


Try this recipe and enjoy shooting down the bloody bombers!


Ah! And there is nothing you can do by changing the aircraft type from 1 to 2 in the DP. This DP file ignores the aircraft type.


Campaigns and Missions


1.    When I start a mission, I am getting an error message that is similar to “cant find model aaa_gun” or similar.  I didn’t get that before installation of IDoA-42 in any of my missions, so what happened?


J&J  We are not sure why this problem has cropped up on a few systems only now, but we do know how to cure it!


When any new objects or scenery “bgl” files are added within the Combat Flight Simulator 2 “scenedb” directory, the game usually and automatically updates the filelist.dat file under each category.  We have tested the package extensively on systems employing Windows 98SE, Windows Millennium and also Windows XP operating systems, but still, there is nothing like thousands of real-world installations to act as the final arbiter as to whether one has achieved perfection.


If you experience this error, you may delete the filelist.dat files located in the Combat Flight Simulator 2/scenedb/INF/scenery folder as well as the filelist.dat files in the scenedb/DoA2/scenery and scenedb/weapons/scenery directories.


Naturally, be careful to only delete the files named “filelist.dat.”


Don’t worry, when you start CFS2 again, the game is forced to rebuild these missing files and this should prevent the error message from reoccurring.  If we update the installation package, we will do this automatically next time around.


Scenery Issues


1.    I never noticed seeing yellow squares with fuel trucks before on some of the default airfield locations, is this part of the IDoA-42 package?


J&J  In a word, No.  The Port Moresby and surrounding area airfields are just like the native CFS2 default airfields.  They do not have any modern fixtures associated with them and certainly no yellow squares or refueling boxes.  The airfields do provide rearm and refueling capability in multiplayer though, just like the default fields.


If you are seeing yellow squares and little green fuel trucks, most likely you have installed one of the Fuel/ADF packages provided by other third-party developers.  In all likelihood, you will have a fuel/ADF sub-directory in your scenedb directory.  You may disable such a scenery layer, but you will also lose your ADF capability.


2.  I see airfields displayed right in the same spots or very near to the new IDoA-42 Port Moresby or Dobodura airfields. How can I fix this?


Jorge  If you see two airfields overlapped in the same place or near, it means that you installed other airfields with a previous add-on. You have two choices: either you remove the old add-on scenery or you remove the IDoA-42 new airfields.


You may disable the IDoA-42 scenery as follows: Go to CFS2 “Settings.” Look for and press the “Scenery Library” button. In the Areas list menu, look for the DoA2 area. Uncheck the “Enabled” box.


The IDoA scenery will not appear in your next mission or free flight over that area and you will get your previous add-on scenery displayed instead.


2.    But I wanted only to keep Dobodura and remove Port Moresby, may I do this?


Jorge  Sorry there is nothing you can do as they are included and combined as part of the same scenery (bgl) file. It’s an all or nothing proposition.


3.    IDoA-42 installed the New Strip at Buna but I can’t see the old default Buna strip.


Jorge  It looks like you may have removed that default scenery and this has nothing to do with the IDoA-42 installation. To fix this, you may have to make a full CFS2 reinstallation over the old one. Upon doing this, remember that you will require to install IDoA-42 again and probably other add-ons as well.


More to follow, maybe . . .


May 9, 2002


The Waltzing Matilda background midi file furnished courtesy of Tek-Worm of the Sim-Outhouse.