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Developer Diary #357

Dear friends,

The beta testing of the new update 5.202 continues: IAR-80B and Spitfire IXc are being polished and new career changes are being tested. The new control assignment features are working great.

We have some good news about the upcoming Spitfire IXc: this aircraft, which was a mainstay of the RAF in early 1944, will be added to the Battle of Normandy lineup. This means that all Battle of Normandy owners will automatically receive it when the 5.202 update is released. This will make the BoN career mode even better and more realistic. It also means that both Western Front modules, Battle of Normandy and Bodenplatte, will have their own Spitfire IX, which was an iconic British aircraft of the time (there is a Spitfire IXe in the Bodenplatte module).


In addition to the new content and improvements in nearly every system of the sim mentioned in our previous DD, 5.202 will bring a neat feature that many of the Mission Editor enthusiasts have been dreaming of - on-the-fly editing of landscape, forest, and water maps that previously could only be edited using 3rd party graphics editing software.

This feature, developed by our lead programmer Sergey, makes editing much more intuitive and easy as you can see the effect of your changes in the sim world immediately - you can plant a forest or cut down the trees near the airfield, fill a new river or remove a lake, create a mountain or dig a ravine. Here are some preview screenshots of this feature.


The new version should be ready for the release soon, in two weeks 😉

Developer Diary #356

Dear Friends,

We are preparing the next update 5.202. It will bring the second, long version of the IAR-80 and the official release of both variants. The fire control system of the IAR has been corrected to reflect its peculiarity - the bombs are released by a firing trigger when the bomb control system is switched on.


Another new aircraft we plan to release in this update is the Spitfire IXc, which will be a welcome addition to both the Normandy and Rhineland careers of the Western Front.



This version will also feature other improvements across the board - some of them were requested by the community for quite some time and we finally have had the time to do them. Here are some notable points.

AI pilots will be more aggressive in frontal attacks and will break off later. Bombers in the Western Front career mode will operate at higher altitudes than on the Eastern Front, 4-4.5 km. A new mission type will be added where you'll have to defend a friendly airfield from an enemy air raid. There are also a number of smaller fixes to various Career mode mission types.

Quite a bit of improvements are being added to the input subsystem: most importantly, it will be possible to search for a command assigned to a button by pressing it or moving a control axis or search for a command by its name. To make mapping a HOTAS controller easier, several command bindings were duplicated as separate on/off or open/close pairs: bomb fuses, bomb doors, air brakes, Ju-87 siren, canopy, prop feathering (all, 1st engine, 2nd engine).

As you may already know from our Q&A video, our engineers are working on updating the P-47 FM using the newly found data kindly shared by community members - we can't promise it will be ready for this update, but we're trying. The P-40 FM review is also in progress.

In other news - our Steam prices now are regional, the price in each region or currency is suggested by Valve (this means that they became lower in most parts of the world, however, due to the currency value changes there are countries where the modules which were released several years ago became a bit more costly or stayed the same).

The update 5.202 is planned to be released in the first half of February.

5.201b Patch Changelist

  1. Fixed a significant slowdown in multiplayer on the Western Front map;
  2. Fixed a CTD caused by Halberstadt D.II being destroyed in mid-air and its parts falling from a high altitude;
  3. Rheinland Career: fixed a bug in the mission of towing gliders to Bastogne (some gliders appeared well above the towing C-47s and weren't connected to them);
  4. All Flying Circus Vol.III aircraft have their own historical scenarios added;
  5. Reduced the cautiousness of AI WWI fighter pilots a bit (they will now be able to pull higher AoA closer to the stall limit);
  6. Pilot's Career: added new mission types "Ground Forces Request" and "Forward Control Post";
  7. German fighters and attack aircraft armament in Normandy and Rheinland Career mode made more historically accurate: underwing guns removed from the Bf 109 (their use was largely abandoned beginning in 1944), and the Fw 190 A-6 and A-8 carry a single 250kg bomb (the most common bomb load for this timeframe);
  8. Normandy Career: fixed a bug with V-1 missile strikes aimed at German held cities;
  9. I.A.R.80: inner and external texturing improved;
  10. I.A.R.80: fixed a bug with techno-chat message about landing light activation;
  11. I.A.R.80: increased the detail level of the canopy frame behind the pilot's seat;
  12. I.A.R.80 added to AQM mode on Stalingrad and Kuban maps;
  13. DFW C.V: fixed inability to start the engine in winter temperatures;
  14. R.E.8: corrected the bomb sight;
  15. R.E.8, F.E.2b, Halberstadt D.II: updated AI settings;
  16. R.E.8, F.E.2b: added missing illustrations to the seat selection dialog in the multicrew menu in multiplayer;
  17. Fixed the multicrew stations screen in multiplayer. Important: selecting a country in the multicrew station selection menu now also determines the player's coalition, which can lead to a penalty assigned on the server depending on its settings;
  18. Fixed the saving of customizable tactical codes in multiplayer;
  19. Career: Added "Select All/Deselect All" button to the regiment filter by aircraft;
  20. AI glider pilots maintain horizontal flight better;
  21. AI glider pilots utilize spoilers when landing;
  22. AI glider pilots won't follow orders from the forward observers on the ground;
  23. AI pilots of the towing aircraft will release the glider before landing;
  24. I.A.R.80: an external head armor part is affected by modifications correctly;
  25. To prevent problems with the glider attachment to the towing aircraft, the towing cable attaches at at least 92 meters distance;
  26. Fixed texture issues on the faces of British WWI pilots;
  27. Resaving the missions using the Resaver.exe utility won't cause the localization data to be lost.

Update 5.201

Dear Friends,

The huge update 5.201 is live. It contains three major additions and a number of other fixes and improvements.

Flying Circus Vol.III is now officially released and is available on our website and on Steam.

[previewyoutube][/previewyoutube]
Most of the Flying Circus Vol.III aircraft were already available via the Early Access program - the last one is the R.E.8 two-seater, a very versatile aircraft for its time (it began to reach the front in late 1916). It was designed to carry radio and photographic equipment for reconnaissance and artillery spotting, and a small bomb load on underwing racks. For more information on this airplane, please read our Dev Blog#354.


In total, Flying Circus Vol.III contains 8 early Great War aircraft: the Albatros D.II, Halberstadt D.II, Nieuport 11.C1, French Nieuport 17.C1, Nieuport 17.C1 adapted for British service, and Hanriot HD.1 fighters, and the R.E.8. and F.E.2b two-seater reconnaissance planes.

Updates to the Western Front map to include the entire frontline, many new objects and settlements, and five seasons - Summer, Autumn, late Autumn, Winter, and Spring.


The WWI Pilot's Career mode has also been updated - it now starts earlier, in 1916, includes all available WWI era aircraft including FC Vol.III and Collector, takes advantage of the updated map and uses all of its seasons.

Please note that the updated map and career mode are also available to owners of any Flying Circus volume (If you don't see the new map seasons immediately, please wait a few hours - they are being assigned to eligible accounts on the server). It is recommended that all FC players start a new WWI career, however we have been able to keep the old FC careers playable - they don't include the new additions and are unsupported, but you should be able to finish an existing WWI career if you wish.

Another fascinating addition is a new aircraft type, something we haven't had in the sim before - a player-controlled military glider.

[previewyoutube][/previewyoutube]
In our simulator, the visual model of the CG-4A glider was restored with great care, and our engineers recreated in its new virtual life all the main features of its control and use. It should be noted that this is a new class of objects for our simulator and we have developed a number of technologies to make its realization possible - for example, a flexible towing cable. In addition to the Quick Mission Builder and multiplayer modes, if you have the Normandy and/or Bodenplatte modules, you can fly them in career mode on the Western Front during the major airborne operations - Overlord, Market Garden, and Varsity.

The third major addition in this update is the short version of the long-awaited IAR-80/81 Collector Plane (the long version is also included in the purchase and will be made available in early 2024 in January or February). We have covered it extensively in our Dev Blog#355.

The I.A.R.80-A fighter series 106-150 is the base model for the short version - it has six 7.92 mm FN Browning machine guns that fire German ammunition. Its flying capabilities were comparable to those of the Yak-1, but later versions of the IAR had more powerful weapons and bombs:

  • I.A.R.80-B series 181-200 has four 7.92 mm machine guns rather than six, as well as two 13.2mm FN Browning machine guns that fire 13.2 mm Hotchkiss rounds.
  • The I.A.R.80-M has two 20 mm MG-151/20 cannons and two 7.92 mm FN Browning machine guns.
  • The I.A.R.81 series 151-175 is equipped with six 7.92 mm FN Browning machine guns and can carry up to three bombs weighing up to 400 kg. The underbelly bomb rack has a distinctive parallelogram mechanism, similar to the Ju 87 dive-bomber, preventing bombs from hitting the propeller during dive bombing.

In addition, the Achtung Spitfire! campaign that previously was only available on our website is now released on Steam.

5.201 Changelist
  1. The CG-4A Collector Plane has been released;
  2. Flying Circus Vol. III has been released - R.E.8 two-seater airplane is added to the sim;
  3. Romanian I.A.R.80/81 fighter is available in Early Access (short version, long version will be added in the next update);
  4. Added Autumn, Late Autumn/Early Spring, Winter and Summer seasons for the Western Front WWI map (available to either Flying Circus module owners);
  5. All Flying Circus Vol.III airplanes have been added to the Pilot's Career mode during WWI timeframe;
  6. The accuracy of AI gunners on player-controlled aircraft matches the "Ace" level on AI-controlled aircraft;
  7. AI won't turn on the landing light during a daytime approach;
  8. A tactical number set by the player is saved;
  9. The send message button in multiplayer chat matches the team color;
  10. A 100% setting on a control axis should result in 100% value displayed in the technochat instead of 99%;
  11. T-34 mod. 1942 and PzKpfW III Ausf. L won't be erroneously listed as part of the Bodenplatte module in the equipment selection menu;
  12. Pilot's Career: new options have been added for fine tuning the difficulty level;
  13. Assault guns with indirect fire capability (SU-122, SU-152, Stug III Ausf. G, SdKfz 184 Ferdinand) have panoramic sight leveling features to ensure accurate shooting. Ballistic tables added to the
  14. Description tab for Stug III Ausf.G and SdKfz 184 Ferdinand ;
  15. New training scenarios added for SU-122 (firing at stationary targets and indirect fire);
  16. Removed extra aftersounds from the SHKAS machine guns firing sound;
  17. Airco DH.4 stabilizer fixed camera position corrected;
  18. Pilot protection from the shrapnel corrected on British planes when the canopy is closed;
  19. Albatros D.II lower wing aerodynamics data corrected;
  20. Li-2 altitude throttle lever function inverted according to its label (forward - poor mixture, reverse - rich);
  21. La-5 ser. 8 wing sturdiness corrected;
  22. Overlord campaign is updated and translated into French.

Developer Diary #355

Dear Friends,

The preparation of the new update continues at full throttle. The CG-4A glider is a challenge as several new features are necessary for its towing, which have never been included in the simulation. The Western FrontWWI map and the last aircraft for Flying Circus Vol. III, the R.E.8 two-seater, are almost complete and receiving final touches.

A quick heads-up: please note that due to the sheer amount of changes we're making to the Flying Circus Career mode (not only is the map much more populated but new aircraft have been added and its timeframe starts earlier) it will not be compatible with the existing careers using this map. If you currently have an ongoing WWI career, we recommend finishing it before December 19th when we will release the new update. Alternatively, you can wait for the update to start a new career.

The long-awaited I.A.R. Collector Plane is also nearing completion. In this case, however, instead of one, there will be two Collector Planes in a single purchase. The long and short variants are quite different, so they are considered distinct aircraft in the game. Each plane comes with its own modifications, paint schemes, flight characteristics, and more. The short version will be available in the December 5.201 update, with the long version following soon before the end of the Winter, likely in January.


The first Romanian fighter to be produced in large numbers was made mostly of metal, except for the stabilizer and flaps which were made of a different material. The flaps and landing gear were operated by hydraulic pressure. The I.A.R.80-A fighter series 106-150 will be the base model for the short version. This fighter was equipped with six 7.92 mm FN Browning machine guns that fired German ammunition. Its flying capabilities were comparable to those of the Yak-1, but later versions of the IAR had more powerful weapons and bombs:

  • The I.A.R.80-B series 181-200 had four 7.92 mm machine guns rather than six, as well as two 13.2mm FN Browning machine guns that fired 13.2 mm Hotchkiss rounds.
  • The I.A.R.80-M had two 20 mm MG-151/20 cannons and two 7.92 mm FN Browning machine guns.
  • The I.A.R.81 series 151-175 was equipped with six 7.92mm FN Browning machine guns and was designed to carry up to three bombs weighing up to 400 kg. The underbelly bomb rack had a distinctive parallelogram mechanism, similar to the Ju 87 dive-bomber, preventing bombs from hitting the propeller during dive bombing.

The aircraft was powered by a twin-row radial 14-cylinder air-cooled engine, the I.A.R.-14K; it was licensed from the French Gnome-Rhone 14K. This engine could produce up to 1000 hp in take-off mode. A less powerful version of this type of engine was also present in the Hs-129 B-2 Collector Plane, a German ground attack aircraft.


We have a question for Romanian players or anyone knowledgeable in Romanian aviation during WWII. Do you recall the photo of Squadron Commander Collins's family in the cockpit of our Typhoon? If you have thoughts on what should be the default photos in the IAR cockpit, we'd appreciate your ideas. Maybe a famous pilot's wife or girlfriend? Two photos could be taken during the war years - one for the short IAR and one for the long one.

In other news - if you're interested in Tank Crew details, Daniel 'Han' has recorded a short video describing a new feature for more precise artillery fire, bubble levels in the gunsights of the SPGs we have - SU-152, SU-122, Ferdinand and StuG III G. The video turned out to be a bit too realistic, so please make sure video subtitles are turned on since it might be hard to hear his voice over the engine noise and explosions.
[previewyoutube][/previewyoutube]