Jul 8, 2020

Version 4.008 Released - P-47D-22 "Razorback" and Ferdinand Tank and More!

IL-2 Sturmovik: Battle of Stalingrad - 777 Studios

Dear Friends,

Today is a very important day - we have just released update 4.008 that includes the first Battle of Normandy aircraft and the last tank for Tank Crew - Clash at Prokhorovka project. The first BoN plane is P-47D-22 "Razorback", the one so many of you had waited for. Battle of Normandy is at a very early stage of development, in the first quarter of the whole plan, but some of its parts are already taking shape - for instance, this new plane we told you in detail in the Dev Blog #225. This release officially starts the Early Access program for the Battle of Normandy and its owners will gradually get more and more content as soon as it is ready, starting with the "Razorback" today.

The last combat vehicle for Tank Crew - Clash at Prokhorovka is Sd.Kfz.184 "Ferdinand" tank destroyer, you could learn more about its history and design peculiarities in our Dev Blog #254. Tank Crew owners can try it right now. This fearsome machine completes the vehicle lineup of this unique and interesting 'Clash at Prokhorovka' project.

Another new addition in this release is the new historical campaign Ice Ring by Alexander =BlackSix= Timoshokov. Consisting of 15 scenarios, it is dedicated to very interesting and strategically important events of November and December 1942 in Stalingrad area - the actions of the special IL-2 group under the command of Major Leonid Karpovich Chumachenko which was tasked with interdiction of the German 'air bridge', the air supply route for the encircled Paulus' 6th Army. The campaign can be purchased here and requires only the Battle of Stalingrad module to play.

Battle of Moscow owners also will find something new in this update - Martin =ICDP= Catney has finished the work on new 4K quality external textures for IL-2 mod. 1941. They, as well as Battle of Stalingrad customers, just received the new early war Luftwaffe pilot model in winter uniform and additional stuff - sidearm, animations for putting the glasses on when starting from parking and the oxygen mask when it is needed.

Another neat feature we want to tell you about is the support for a special in-game voice communications system known as SRS - "Simple Radio Standalone" (IL2-SRS). At the moment its support is not final, but it can be used with ease already. You can find all the info on how to install and use it here.

Less than a month has passed since the previous update, but again we have found ourselves posting a vast list of changes made. Sometimes the corrections mean that a user-created content needs to be updated as it happened now with height map corrections for Battle of Moscow, but the required actions are minimal, you can learn more about them here. Other numerous changes and corrections in 4.008 are listed below. Please note that some of them are quite important and should get your attention:

Main Features:
1. P-47D-22 “Razorback” heavy fighter is available to all customers who pre-ordered the Battle of Normandy. Early Access phase starts for Battle of Normandy project;
2. Sd.Kfz.184 “Ferdinand” tank destroyer is now available to all owners of the “Tank Crew” project, completing its 10 vehicles lineup; Official retail release of Tank Crew is TBD.
3. The new historical campaign “Ice Ring” is released and available for purchase (it requires Battle of Stalingrad);
4. Support for special SRS Radio voice comms app. The final version of SRS for IL-2 is still WIP by its author and will be released soon. We have created a special section in the forum dedicated to SRS instructions and discussions. https://forum.il2sturmovik.com/forum/147-srs-radio/
5. The 1941 IL-2 attack aircraft now has 4K quality external texturing thanks to Martin = ICDP = Catney;
6. The new model of the early war Luftwaffe fighter pilot in the winter uniform has been added for Battle of Moscow and Battle of Stalingrad;
7. The new model of a hand holding a pistol or flare gun in a 1st person view added for early war Luftwaffe pilot;

Aircraft improvements:
8. In a multiplayer game, the next steps have been taken to eliminate the problem of invisible planes that appear only at the moment they start to shoot. Because reproduction of this problem is extremely difficult, please help: if you encounter this problem again, be sure to report it and attach a flight record to your message;
9. The option to leave a destroyed object in the game now works for aircraft (uncheck the “Delete after death” checkbox in mission editor);
10. P-47D-28 stall behavior has been corrected: the aircraft is less likely to suddenly stall at a beyond-stall angle of attack;
11. P-47D-28: damping moments have been corrected, resulting in the more inert and 'heavy' feel of controls;
12. P-47D-28 controls effectiveness has been corrected. The maximum roll rate has been reduced to correspond to the historical data. At high speeds (before the air compressibility effects kick in) the aircraft is more controllable along the roll and pitch axes. During the Mach-tuck the controls lose effectiveness making exiting a dive more difficult;
13. P-47D-28: maximum wing lift with extended flaps has been reduced;
14. P-47D-28 engine thermal model corrected (it became more resistant to overheating);
15. P-47D-28: the visual image of the rotating rotorhead has been improved;
16. P-47D-28: the problem with the rotation of the bent screw when using boost has been fixed;
17. P-47D-28: 150-octane fuel modification has been added;
18. P-47D-28 injection system corrected: when there is no liquid in the system left, the engine can’t be switched to combat emergency mode. The pressure gauge shows correct pressure in the injection system;
19. P-47D-28: the description of the aircraft and the related tips in the technochat were updated;
20. P-47D-28: the outside and inside sound mismatch has been addressed;
21. P-38, P-47, P-51, Tempest, Ju-88, Me-262: landing gear doors of other players in multiplayer won’t stay visibly open;
22. Me-262: landing gear doors in the hangar are now open;
23. P-51: landing gear doors in the hangar are now open while the flaps are down due to the lack of hydraulic pressure;
24. P-38: antenna between the two rudders disappears when one of them is lost;

Player Controllable Tanks improvements:
25. Crew members can be gradually poisoned with CO gas when firing the main gun with the hatches of the fighting compartment closed and ventilation turned off or damaged. M4A2, KV-1s, SU-152 the ventilation system is powered from a working main engine while on other tanks it is electric and won’t work with no electric power;
26. The engine won’t stop so frequently after a collision;
27. Tanks shouldn’t visibly ‘levitate’ above the ground;
28. A bug that reduced the actual number of shots for the main gun by 1 for each ammo type has been fixed;
29. A bug that caused the number of shells to be calculated incorrectly when one ammo type is spent (it did not decrease at first and then decreased by 2 after a next shot) has been fixed;
30. Driving along the shallow coastal part of the river is no longer like driving on a highway;
31. A toppled over tank won’t glide on a terrain slope like on ice;
32. A bug that could cause a detailed tank to explode multiple times has been fixed;
33. The effective destruction ranges of light vehicles have been corrected in HE shells descriptions;
34. Pz.Kpfw.VI ammo descriptions updated (trajectory drop and HEAT speeds);
35. Pz.III Ausf. M, Pz.V Ausf. D, Pz.VI Ausf. H1 starting procedure has been updated (the manual fuel pumping was replaced by an electric one with the addition of the required buttons in the driver compartment);
36. Pz.III Ausf. M now has a functioning fuel gauge (to the lower right on the bulkhead of the engine compartment);
37. Pz.III Ausf. M traverse indicator is now illuminated;
38. Pz.III Ausf. M and Pz. IV Ausf. G intercom Z18 parts are covered in self-luminous paint;
39. Pz.IV Ausf. G and Pz.V Ausf. D odometers have been corrected;
40. T-34-76UVZ-1943, SU-122 and SU-152 fuel and oil pipes color has been corrected (made less vivid);
41. The external tools attached to the German tanks were improved to look better, ground jack added for Pz.V Ausf. D;
42. Other changes and improvements to the German tank interiors;
43. The sounds of control levers, pedals and the hand brake are added to Tank Crew tanks;
44. Turning the SU-122 and SU-152 panoramic commander sight produces a sound;
45. Pz.IV Ausf. G and Pz.V Ausf. D odometers have been corrected indicate a change of direction;
46. A failure of one of the M4A2 engines now affects the instrument readings and the engine sound;
47. M4A2 low oil pressure indicator lamps have been corrected;
48. Sound of the M4A2 engine's startup has been improved;

Visual Crew Improvements:
49. The color of pilot’s glasses of the late war Bf 109 Luftwaffe pilots has been corrected;
50. The “holes” in the texture of the American flare gun were eliminated;
51. The texture of the flare gun on the British pilot model has been corrected;
52. Shooting any pistol ejects a casing;
53. Soviet tankers have less gloss effect on the faces;

AI Improvements:
54. AI pilots won’t try to attack targets with the parameter engageable = 0 which could cause steep diving on a ground target with no chance of recovery;
55. AI pilots aim at air and ground targets better and the rockets and projectiles won’t fall short of a ground target at the beginning of a burst;
56. AI fighter pilots won’t chase its target too far from their assigned route or area of operations;
57. All AIs in a fighter group will attack a target (previously one of them could ignore it and follow its mates in a formation;
58. A rare random bug that could cause the AI gunner of a player tank to spontaneously rotate the turret at the beginning of the mission has been fixed;
59. A knocked off detailed AI tank (no marker visible and other AIs don’t see it as a threat) won’t continue to fire at targets sometimes;
60. When all the gunner visors of an AI-controlled detailed tank are damaged, it won’t track the targets and fire at them;

Other Improvements and Fixes:
61. The residual inertia in the first-person non-VR view of the gradual zoom at maximum zoom and maximum zooming speed option when not using a mouse for looking around has been addressed;
62. The contours of objects against a clouds background have been minimized by using special tech;
63. The lowest cloud quality setting still causes significant artifacts on the aircraft visible against a cloud at near distances, but no longer gives an unfair advantage in spotting a distant aircraft;
64. The double triggering of onKilled events in the mission script shouldn’t happen again;
65. New training missions added for Battle of Moscow in the spirit of the real initial training of a MiG-3 pilot (Missions – Battle of Moscow – Migalovo training);
66. The recently found error on the Moscow map (the landscape height above the sea level was 50m less than it should) has been fixed;
67. The missing buildings at the Liege / Bierset A-93 2414/7 airfield on the Rhineland map have been added;
68. The poor-looking machine shop buildings in the industrial district of Belgorod (Prokhorovka map) were replaced with better ones;
69. The truncated or missing phrases of one of the USAAF air traffic controllers and RAF and USAAF forward observers were corrected;
70. The shimmering of very long railways on Kuban map that was visible up close has been corrected;
71. The look of the passenger and freight railroad wagon roofs has been improved;
72. Selecting a random Entente aircraft in the duel on Arras map in QMB no longer produces a Bf 109F-4.

Note: Tank Crew title will be coming to Steam store in the near future.

We hope you enjoy these additions and improvements!

The Sturmovik Team

Jun 26, 2020

Developer Diary #255 - P-47D-22 "Razorback" Pics and New Early German Pilots!

IL-2 Sturmovik: Battle of Stalingrad - 777 Studios

Dear Friends,

Continuing from the previous Dev Diary, this time we'll tell you about the second important addition (well, depending on your personal preference it may be the first important addition actually) coming in our next update - version 4.008. The P-47D-22 "Razorback", the first aircraft of Battle of Normandy, will kick off the Early Access program for this module.

The main difference from the P-47D-28 you have flown in Bodenplatte is the cockpit canopy design with significant canopy framing and dorsal spine behind it. The front part of the canopy includes two angled parts and a windshield center post that would have blocked the view through the gunsight if it was installed in the center, so the gunsight was moved to the right like in the German fighters. The space between the gunsight and the angled windshield parts is occupied by the armored glass protecting the pilot from fragments and small-caliber projectiles coming from the forward hemisphere. On the top of the framing, a rear-view mirror is installed - it was standard-issue, not an optional modification. Contrary to the P-47D-28, the canopy was opened in a classic way, manually, and not by a fancy electric motor.

The "Razorback" had a different propeller than the D-28 and the propeller pitch was controlled by hydraulics, not an electrical drive which had no manual mode. The P-47D-22 can use high-octane fuel, which affects the engine power, and the good news is that P-47D-28 will receive this option in the next update as well. As we have stated many times before, we don't forget about a module after its release date and will always continue to improve it and add new features whenever possible.

While we were working on the Razorback, its successor from Bodenplatte got the same flight model refinements as well: for instance, the effectiveness of the flaps has been reduced somewhat and the aircraft behavior beyond stall angles has been corrected - it won't stall so unpredictably and will indicate the coming stall by buffeting and lowering the nose. The load on the control surfaces have been corrected as well - the ailerons are affected by the ram air a bit earlier, but the load increases at higher speeds more smoothly and the elevator load at high speeds was also reduced somewhat. The Mach number effect on the controls has been additionally adjusted. Overall, this resulted in better compliance with the reference data for roll speed and increased Mach-tuck tendency at high speeds. In general, P-47 now feels more like a heavy machine it was.

It is interesting to note that while Razorback was an earlier model than D-28, it has a bit higher climb rate and significantly (+27 kph) speed at emergency engine mode. To a degree, this difference comes from a different propeller, but mainly it was caused by the dorsal spine. Bubble canopy, while being vastly superior for offering a much better view, creates flow swirling behind them. Dorsal spine fairing increases the lift-drag ratio of a plane.

Bodenplatte fans will be happy to hear that we are going to insert the D-22 into the BOBP Pilot Career once the plane is finished. Some Razorback models were still in operation during this period so you will be able to fly them and against them in the BOBP Career before the Normandy Career is ready. However, you will need to have purchased BON to have access to their cockpits in BOBP. This gives an added benefit to participating in BON Early Access. Would-be Razorback pilots - it's time to enlist!

To complete today's Dev Blog, we would like to showcase another improvement that we did exclusively for our previous projects - new early Luftwaffe pilot winter uniform which will be later used for all fighters and then bombers from Battle of Moscow and Battle of Stalingrad:

Enjoy!

The Sturmovik Team

Jun 19, 2020

Developer Diary #254 - Sd.Kfz.184 "Ferdinand" Pictures from Tank Crew

IL-2 Sturmovik: Battle of Stalingrad - 777 Studios

Hello everyone!

As time goes on, the release date for the next update is approaching. As we said earlier, one of the central objects of this update will be a German tank destroyer - a self-propelled artillery Sd.Kfz.184 "Ferdinand". As many of you know, this monster was the result of the loss of Ferdinand Porsche in the competition for the creation of a heavy breakthrough tank for the Wehrmacht. That competition was won by the "Pz.Kpfw.VI Tiger" developed by Henschel. Porsche’s loss was caused by the extraordinary, even for the Germans, the complexity of the chassis. However, in the course of this rivalry, Porsche produced a significant amount of the chassis of a new type of heavy tank. This was subsequently used to create the most powerful and protected, at the time of the Battle of Kursk, anti-tank armored fighting vehicle in the world.

On the Porsche chassis, an armored fighting compartment was installed, protected in the frontal projection by a 200mm armored plate, the weight of which was similar to the weight of a large truck. Even the Tiger gun is not able to penetrate this 200mm obstacle when using armor-piercing shells and 152mm armor-piercing shells of the ML-20 howitzer can't do it either. To bring the frontal armoring of the front of the hull in line with the existing 100mm armor plates, an additional piece of 100m armor was installed. The sides and rear of the vehicle were protected by 80mm armor plates, which were an extremely difficult, almost insurmountable obstacle for 76mm Soviet armor-piercing shells. The roof and the bottom of the hull were also armored considerably.

The weak spots include the roof of a large-scale engine compartment, which was located in front of the tower and could be hit by large-caliber high-explosive fragmentation shells when they burst on the front armor plate of the fighting compartment. Also, the tank’s weak point is the relatively thin armor of the cooler exhaust manifold of the electric propulsion motors - a significant part of ammo is 'conveniently' located just above it. It is worth to note the completely unprotected gunsight of the main and only gun, located on the roof of the fighting compartment.

The Ferdinand is armed with an extremely powerful 88mm KwK-43 L / 71 gun, that was created on the basis of the Flak 41 long-barreled anti-aircraft gun, while the shorter Tiger gun (also 88mm) was created on the basis of the shorter Flak 37 anti-aircraft gun. Firing a similar armor-piercing projectile, but with a more powerful charge and a longer barrel length, the KwK-43 L / 71 gun accelerated it to 1000 m/s against 800 m/s in the KwK-36. The Ferdinand had no machine guns at the time of the Battle of Kursk. The disadvantages of its armament include a panoramic sight that is not very useful in anti-tank combat since it doesn't allow entering corrections in the field of view (it had a significant degree of amplification though), and a low horizontal aiming speed.

But the most remarkable feature of the "Ferdinand" is it’s progressive and promising, but very controversial electrical powertrain. This is one of those cases when technical thought was far ahead of technical capabilities. The idea of refusing the mechanical transmission of torque from the power plant to the propulsion system, which is widely used today in heavy equipment, at that time led to very serious problems. The electric drive motors gave an increase in speed, but with a significant loss of torque on the tracks. So the efficiency of the power plant as a whole, even when on a flat surface, was so low the vehicle could not reach speeds more than 20 km/h. Even with a huge fuel reserve of 950 liters, the range was just 150 km on the highway. Also, due to the features of the electric motors, the power plant had a reduced efficiency when driving backward.

To supply the required amount of electric energy, two engines from the Pz.Kpfw.IV tanks were installed in the Ferdinand, each with a corresponding DC generator. Both generators were connected to a single line that supplied current to the electric motors, and each of the motors had its own regulator to control the speed and direction of movement. This made it possible to continue driving even if one engine or generator failed. The high cost of materials required for the production of windings, conductors and switches of the electrical powertrain, the use of two engines, plus its huge mass of 65 tons led to extremely serious technological and operational difficulties even for such a rich and industrialized country as wartime Germany. That is why the competition was won by the more traditional and easier to produce Tiger-I of Henschel design even though the Tiger from Henschel was also not a cheap tank by any means and the labor costs for its production were many times higher than required for a mass-produced T-34. On the other hand, the simplicity and ease of control of the tank, as well as the softness of the ride were a bonus to those who manned it. The ability to turn the vehicle on the spot without using advanced mechanical systems required for a traditional powertrain was a welcome bonus.

Nevertheless, with all the technological and operational difficulties it had, this combat vehicle during the Summer of 1943 was the most dangerous on the battlefield - if it was able to reach it in time to participate in a head-on tank battle. It was important for us to recreate it as close to the real one as possible, just like all the vehicles we already have in Tank Crew, and it was really hard to do. There is only one early Ferdinand remaining in the world - #501, it is located in the armored forces museum in Kubinka near Moscow. Another one, later modification called Elefant with a commander cupola and MG installed, is in the US. The available documentation is very segmentary, short and incomplete. However thanks to the effort of our partners in Digital Forms and application of cross-checking analysis, we have one of the best recreations of this combat vehicle available. From our side, we contributed to the recreation of its maneuverability, armament and systems functioning peculiarities, which required a lot of work as well. On the screenshots, you see exactly that Ferdininand #501 that was captured in the Kursk battle and ended in the Kubinka museum.

The last what we want to tell you about this tank destroyer - its release will complete the lineup of the combat vehicles we planned to recreate together with Digital Forms for the Tank Crew - Clash at Prokhorovka project. This moment will be a very important milestone in the history of our project. It won't mark the end of the work on this project - as usual, we continue to support, improve and deepen all our projects after the official release date. IL-2 Sturmovik and Digital Forms teams hope you'll enjoy the result of our joint effort.

Note: IL-2 Sturmovik: Tank Crew will be released on Steam once it is ready.

Enjoy!

The Sturmovik Team

Jun 9, 2020

Update 4.007 Released - 4K Stuka Skins, Control System Damage and Much More...

IL-2 Sturmovik: Battle of Stalingrad - 777 Studios

Dear Friends,

We've decided to release the new update 4.007 relatively soon after the previous one, because the fixes and improvements it brings, while not being major, are nevertheless important for the project as a whole. We have heard your feedback on the view system improvements, added new options to the multiplayer functionality, which govern the usage of graphical mods, in addition, we did additional research on the workarounds for the Direct 3D functionality not supported by one of the graphics cards vendors. Damage modeling has been improved to take into account the control systems damage (rods, wires, etc.). We have also added a new German pilot model in the early summer uniform. The full list of changes follows:

1. Ju 87 D-3 dive bomber has been upgraded to 4K external texturing thanks to Martin =ICDP= Catney, including two additional official skins;

2. Aircraft control systems DM has been upgraded. The probability of losing control in a certain control axis depends on the control wires or rods configuration of a particular aircraft and existence of a reserve control channel (or its lack thereof);
3. Workarounds for the remaining graphical artifacts on AMD cards (like black contour around the aircraft when viewed from its cockpit) have been implemented;
4. New multiplayer server option “Restrict Injectors” allows the server hosters to restrict access for users with graphics injectors like Reshade or 3dmigoto;
5. Five new mappable (RCtrl+NumPad_Del,1,2,3,0 by default) zoom commands have been added that allow quick zooming to various degrees (minimal, maximal and 3 intermediate levels). Zoom value set by a mouse or joystick axis or keyboard keys is not affected by the new quick zoom and after releasing a quick zoom button the FOV will return to the one set by an axis. These new commands work in either 2D or VR mode. The old 'VR zoom' command has been deprecated (its equivalent is the new maximum quick zoom, RCtl+NumPad_0);
6. There is a new setting in the Camera options that governs the speed of the new zoom commands;
7. Tank commander binoculars give three times more powerful zoom than before (they give a minimal FOV that is technically possible in the game);
8. The current FOV (Field Of View) value is shown next to the in-game FPS counter (that is activated by Backspace key by default);
9. Gunsight FOVs have been corrected for all tanks;
10. German fighter pilots of the Battle of Moscow, Battle of Stalingrad and Battle of Kuban have a new visual model and a sidearm during Summer (new Winter model, also with a sidearm, will be added later when it is ready). Because of this, the default camera position and user-customizable snapviews (.svc files) were changed on Bf 109-G14, Bf 109-K4, Me 262-A, Fw 190-A3, Fw 190-53, Fw 190-A8 and Fw 190-D9. The updater should overwrite the old files for these planes with the new updated ones for you, but in case this action was blocked by antivirus software on your PC and you see a wrong view in the cockpit of these aircraft in the game, please copy the new default .svc files for these aircraft from \data\LuaScripts\snapviews\defaults to \data\LuaScripts\snapviews manually. If you haven't customized the view positions on other aircraft, you can just copy all the files from snapviews\defaults to snapviews folder;
11. Bomb holders on both Bristol Fighters appear correctly depending on the ammo loadout;
12. Pedals on both Bristol Fighters appear correctly in a neutral position;
13. The issue that made the detached parts of Flying Circus aircraft invisible in the multiplayer has been found and fixed;
14. Fw 190 D-9 canopy glass appear correctly at medium distances;
15. Fw 190 D-9 oil on windshield visual effect has been restored;
16. Destroyed static KV-1 model won't have white tracks when viewed from a distance;
17. Tank turret turn indicator won't visually 'jump' when passing the back position;
18. APHE rounds stopped by the armor won't damage outside objects;
19. Train wagons won't appear detached from the locomotive in some missions;
20. Guest crew members in multiplayer will correctly hear the sound of the tank turret turning;
21. Guest crew members in multiplayer will correctly hear the sounds of the hatches closing or opening;
22. Certain HE rounds explosions can be heard from an aircraft cockpit;
23. The arm model has a correct sidearm in it in VR mode;
24. The arm model won't drop a shadow when there is no body rendered;
25. The arm model has the correct size in VR mode;
26. Missing road segments that sunk inside the terrain have been corrected on Kuban map.

Enjoy!

The Sturmovik Team

May 19, 2020

Update 4.006 Released - Yak-9/9T, Deferred Shading, New Pilots, New Campaigns

IL-2 Sturmovik: Battle of Stalingrad - 777 Studios

Dear Friends,

Around a month has passed since the previous humongous update and we have another right here. Its changelist is not as so hideously long (it is still too long, however - more than 80 items), but some of them are quite important. First of all, two new Collector Planes are released, Yak-9 and Yak-9T. It was the most mass-produced Soviet WWII aircraft, the real victory weapon. They had very good flight characteristics, bubble canopy with armored glass on the front and back, good manufacturability. The modification Yak-9T armed with powerful 37mm gun NS-37 was designed for bomber intercepts but was also widely used against ground targets. Yak-9s were used in the Battle of Kuban, so you can use it in the Career mode at this theater of war as well as in QMB and multiplayer.

Note: The Yak-9 and Yak-9T Collector Planes will be coming to Steam store soon. For now, they are A.I. if you did not pre-order them from the IL-2 Website. Please have patience while we work to get them offered on Steam.

For Tank Crew customers this update adds a long-awaited Zveroboy ("Beast Slayer") - self-propelled heavy howitzer (assault gun) SU-152 based on KV-1s chassis and armed with a very powerful 152mm gun-howitzer ML-20S. While these assault guns were designed primarily for knocking out heavy defenses, at the Kursk Battle it was probably the only Soviet armored vehicle capable of killing Tigers and Panthers at far distances. Its 152mm APHE round weighed nearly 49 kg and its hit was lethal for a Tiger up to 2 km distance. Panther's thick and sloped frontal armor and 200mm frontal armor of Ferdinand tank destroyers could withstand it, but a HE shell hit at a Panther turret guaranteed to breach the thin hull roof near the hit area and APHE hit at a Panther side could knock it out easily. Being very powerful, SU-152 wasn't an absolute weapon of course. Limited armor and gun traverse angles, low ammo reserve and slow rate of fire demanded the combat skills from the crew and interaction of a group of these machines to reach its combat potential fully. Nevertheless, it was the first dangerous adversary for the newest German cats of prey.

This update also includes three new Scripted Campaigns – Kaiserschlacht, Spring Offensive and Lightning Strikes.

Kaiserschlacht and Spring Offensive are two campaigns developed by our friends at The Syndicate which tells about the same events from different sides of the front line of the spring of 1918. Although previously released to the public, these campaigns have been enlarged to include new unreleased missions. These are the first official campaigns for Flying Circus, allowing you to more fully evaluate the full potential and atmosphere of this great product. These two campaigns will be available free of charge to those who have already purchased Flying Circus: Volume One. There is an accompanying skin-pack for this campaign. It is available in the forum.

And for those who own the P-38J-25 Collector Plane and Battle of Bodenplatte, we also have a cool new Scripted Campaign for you - Lightning Strikes! This campaign was developed by our friend and talented mission maker Jaegermeister and it portrays P-38 combat missions in the skies of Europe from October to the end of December 1944. The campaign includes an outstanding number of missions, 25 of them, the last of which tells about the notorious events of January 1, 1945. This campaign is included free of charge to everyone who owns the P-8J-25 and Battle of Bodenplatte. There is also an accompanying skin-pack for this campaign and is available in the forum as well.

While new aircraft, tanks and campaigns are the lead stars of our sim, the most important change in this update is the release of the new graphics rendering engine based on Deferred Shading. This is the base for a new powerful shoot forward in the visual part of the project. It's impossible to unlock all this potential at once, but in this update, we already added a number of improvements based on this fundamental change. More natural-looking aircraft exterior, cockpit and instrument reflections, better-looking water surfaces - this is just a start.

Thanks to Martin =ICDP= Catney we have the external textures of 4 more existing aircraft in 4K quality: two bombers He 111 H-6 (BoM) and He 111 H-16 (BoS) and two Collectors Planes, La-5 series 8 and La-5FN series 2. The new textures push the visuals of these planes to a new level.

These huge additions aren't all - the update 4.006 brings many others which are also important. Aircraft FM and DM were updated basing on your feedback, Soviet fighter pilots have new visual model, there is a lot of changes for ground and naval units as well as for player controllable Tank Crew war machines. Multiplayer functionality has been also addressed. All this serves one purpose - constant improvement of the quality of gameplay and accuracy of the simulation. IL-2 Sturmovik team hopes that you'll enjoy all these changes.

Main Features
1. Yak-9 series 1 Collector Plane is available;
2. Yak-9T series 1 Collector Plane is available;
3. SU-152 heavy assault gun is available for all Tank Crew customers;
4. La-5 series 8 exterior textures, including damage, are in 4K quality now thanks to Martin =ICDP= Catney;
5. La-5FN Collectors Plane exterior textures, including damage, are in 4K quality now thanks to Martin =ICDP= Catney;
6. He-111 H-6 exterior textures, including damage, are in 4K quality now thanks to Martin =ICDP= Catney;
7. He-111 H-16 exterior textures, including damage, are in 4K quality now thanks to Martin =ICDP= Catney;
8. Two scenario campaigns, Kaiserschlacht and Spring offensive, are available for all Flying Circus Vol.1 customers for free;
9. A huge (25 missions!) scenario campaign Lightning Strikes is available for all Bodenplatte Premium customers (you can also play it if you have purchased Bodenplatte Standard Edition and P-38J-25 Collector Plane separately);
10. The graphics engine of the sim now uses Deferred Shading technology;

Graphics Improvements
11. FXAA or MSAA can be selected in the game options;
12. New option - cockpit reflections;
13. Metallic and lacquered aircraft surfaces reflect the light softer and more naturally;
14. There are canopy and instrument reflections in the cockpit;
15. The aircraft visual image won't suddenly darken when zooming out or at a distance;
16. Damage textures won't light up too much when zooming out or at a distance;
17. Rivers and lakes water visuals improved;
18. Clouds reflections in water bodies improved;
19. Excessive brightness of the high detail buildings on the Prokhorovka map has been reduced;
20. Shell casings won't become transparent when too close to a camera;

Crew Models
21. There is a new pilot model on all Soviet fighters and on A-20 (pilot and navigator);
22. This new pilot model has three uniform variations depending on the mission date (before April 1942, April 1942 - May 1943, late war);
23. The new pilot model has a sidearm (press RCtrl+4 when the cockpit is open). Pilots of the other aircraft will receive it when their models are updated;
24. Battle of Bodenplatte aircraft which have been also lend-leased to USSR (Spitfire-IX, B-25D, P-47D) can have Soviet crews if their country in a mission file is set to the USSR;
25. P-40E (BoM), Spitfire-Vb (BoK) and Spitfire-IXe (BoBp) have American pilots if their country in a mission file is set to the USA;
26. P-40E (BoM), Spitfire-Vb (BoK) and P-51D (BoBp) have British pilots if their country in a mission file is set to the UK;

Player-controllable Tanks
27. New quick missions for tanks - Tank Duel and Tank Skirmish;
28. All player controllable tanks have the transmission from forward-backward and left-right user controls to the simulated tank controls corrected, which improved their turnability at high speeds and reduced the tendency to enter a skid;
29. The commanders of the indirect fire capable self-propelled guns (SU-122 and SU-152 at the moment) can order the AI gunner(s) of their tank or tank platoon to fire at a set distance and direction;
30. T-34UVZ-43 got two new modifications - additional all-steel internally sprung wheels;
31. SU-122 OF-462 HE shell ballistics corrected;
32. Death of a radioman correctly affects the radio functioning on player controllable tanks;
33. When the turret ventilation system is off, you can see from the outside the smoke coming off the crew hatch;
34. The smoke can be seen escaping the engine compartment of KV-1s and M4A2 after a shot;
35. All Soviet tanks have animated oil pumping in the engine start procedure;
36. Т-34UVZ and SU-122 have correctly looking headlights at a medium distance (without a block dot);
37. Older Pz.III.Ausf.L and T-34-76-STZ-42 tanks have correctly damageable suspension and armament;
38. All 45mm and bigger shells don't have tracers anymore if a real shell didn't have it (HE shells mostly and 122mm HEAT). This is true for AI units as well;
39. All 45mm and bigger shells without tracers have a generic visual model (HE shells mostly and 122mm HEAT). This is true for AI units as well;

Aircraft Physics, Systems and Visuals
40. The maximum airspeed at which the pilot is able to bail out now depends on the vertical G-load acting on the pilot: the smaller positive G-load, or the greater negative G-load, the easier it is for the pilot to leave the plane;
41. A G-load indicator is added to the HUD. When simplified instruments are switched off, G-load is indicated without a fractional part;
42. A message about turret ammo replenishing and turret repair has been added to the technochat;
43. A message about servicing the engine oil system or cooling system in the repair area is added to the technochat. The service is performed if the engine oil or coolant have cooled down significantly during the aircraft stop (previously in these cases the player periodically received information about the repairing of the corresponding system, which wasn't really clear);
44. SPAD 13.C1: the roll oscillation of an AI-controlled airplane at a speed of about 200 km/h has been fixed;
45. Yak-7B polar curve has been corrected (the critical angle of attack was reduced, the inductive drag at large angles of attack was increased, the turn rate was reduced, the maximum speed and climb rate remained the same);
46. Yak-7B: the engine heat balance has been adjusted (the engine won't overheat as quickly as before);
47. Yak-7B, Yak-1 (ser. 69, 127): the ailerons hinge moment and ailerons effectiveness at high airspeed were corrected (the roll rate is increased);
48. Bf-110 (G2, E2): the airplane polar curve was corrected (aerodynamic drag was increased), the turn rate, maximum speed and climb rate are corrected to be as close to the values specified in the airplane in-game specification as possible;
49. Bf-110 (G2, E2): aerodynamic characteristics corrected at supercritical angles of attack (the effectiveness of slats was improved, the drag was increased, and the nature of the stall was adjusted);
50. P-38J25 landing gear doors are visibly opened in the hangar;
51. Bf-109 G14 emergency engine power has been fixed (increased);
52. An aircraft won't appear underground when a season is set incorrectly or undefined in the mission file;
53. Sopwith Camel: when the option “Simplified Controls” is enabled in the difficulty settings, the automatic helper better stabilizes the plane along the roll axis at a high angle of attack;
54. Spitfire Mk IX: excess struts on the pylons were removed;

Aircraft Damage Model
55. The piston engines' combat survivability has been adjusted - the protection from the engine casings has been reduced, bullets and shells cause more damage to the crank gear, while shell fragments cause less damage to the engine.
56. All Flying Circus airplanes: hitting at the central section of the top wing now also leads to breaking the top wing (its left or right part);
57. The geometry of wing spars of all Flying Circus airplanes has been checked and brought into strict compliance with known sources. In general, now it requires much more bullet hits to break the wings of World War I aircraft;
58. The absence of visual and hearing disorders under the high G-loads for gunners in the single-player mode was fixed;
59. A rare bug has been fixed, which caused the fragments not damaging the airframe sometimes;
60. Pe-2 (ser. 35, 87): fixed rudders 'wobbling' when their control wires are broken;
61. Pe-2 (ser. 35, 87): a bug has been fixed that caused the left rudder to react to the controls slightly when its control wires were actually broken;
62. All Bf-109 fighters except E7 can now lose the left or right side of the horizontal stabilizer when hit at its central part (Bf-109 E7 has a central part of the stabilizer which can be lost by itself);
63. P-38: fixed a bug due to which the oxygen system could erroneously take damage;
64. Ju-52: fixed rudder 'wobbling' when its control wires are broken;
65. Fixed a problem with repairing aircraft turrets;
66. Fixed the undamageable machine guns in a number of aircraft turrets;

Ground and Naval Units
67. Ships have a more advanced physical model - they can be damaged by collisions, run aground, lay on the shore (and not sink into it), and lay on the bottom when sank;
68. All naval guns and howitzers fire physically modeled projectiles (previously explosions were created in the target area), making their combat use much more realistic;
69. All naval guns and howitzers have AP ammo available (around 10% of ammo reserve);
70. AAA guns can fire at the ground area (if the mission trigger Attack Area is set on the ground level);
71. The issue that made the first several salvos of an artillery battery too accurate has been found and fixed;
72. The issue with AI aiming the guns of player controllable tanks has been fixed;
73. Pz.Kpfw.IV Ausf.F1 and Pz.Kpfw.IV Ausf.G have their armor plates thickness corrected;
74. Groups and columns of AI-controlled ground vehicles can stop on shallow slopes (previously they couldn't);
75. Tank AI gunner no longer try to fire at flying targets;
76. Ground vehicle AIs can't spot targets through a dense enough forest (if at least 50m of the line of sight to a target travels through the forest area);
77. Field guns (AT and divisional ones) can fire at a maximum distance when given the Attack Area -> Ground command in the mission;
78. Aiming tables for several AA guns have been corrected;

Aircraft AI
79. The firing accuracy at air and ground targets depends on the AI pilot level;
80. View sectors have been corrected for Hs-129, Ju-52, A-20 and U-2 crews;
81. The minimal fuel reserve calculations have been corrected (previously they could cause AI pilots to RTB too early);

Multiplayer
82. The audibility of hits on the own plane has been corrected when the cockpit canopy is damaged;
83. New server-side option “Restrict tank AI gunners” blocks the ability of the tank commander to assign a dynamic object as a target for the AI gunner or order it to search for targets on its own;
84. Tech chat and handling tips are now governed by difficulty settings that can be enforced on a multiplayer server;

General Fixes
84. The recently introduced error in the armor penetration modeling has been corrected (it made the projectile speed - armor penetration function graduated and could cause an armor penetration in a case when it shouldn't occur);
85. Concussion won't cause the loss of hearing for too long;
86. UK and US careers (Bodenplatte) will work correctly with the Simplified Chinese language selected;
87. A rare error in scripted campaigns that could cause the progress to be lost after re-entering the game has been found and fixed.

Enjoy!

The Sturmovik Team