Hello everybody,

In spite of the serious events happening in the world, the time flows and it looks like we adapted to the new work conditions. The work processes are set up and we continue at the usual rate. Since we plan to release important renderer improvements in late Spring, we set the workflow to develop the short and long term tasks simultaneously. We'll tell you about what will be released in Summer a bit later, while today we'll concentrate on the coming update 4.005. =AnPetrovich= and =Jason_Williams= told you about the main feature of this update earlier - reworked, improved and advanced damage model of the airframe - but it is not the only huge change that it will include.

Speaking of the battle damage modeling, another very important change is the improved frag and blast damage calculations throughout the entire sim. Thanks to the fresh look and research input by our partners at Digital Forms, which make the visual models of the Tank Crew vehicles, we were able to bring the fragments damage calculations to the new level of complexity.

Generally speaking, the calculations of the damage incurred by munition fragments became less abstract. The new model is universal for all munition types. The calculations of the warhead fragmentation are more life-like and give the initial speed, mass, and size of the fragments. New progressive methods of modeling their speed decrease use the integration of their movement.

The calculations of the penetration ability of the combined HE and frag damage is also less abstract. Instead of using an empirical parameter, the system now uses the speed, mass, and size of a fragment to model a penetration and the massed impact in case of a near explosion is also modeled. Since the calculations of the penetration ability and the energy of fragments were changed, the excessive effectiveness of the bombs against armored targets at large distances has been reduced. The penetration ability of the fragments created by shells containing a small amount of explosives relative to their overall mass was also reduced because of the same reason.

The blast damage calculations use a more accurate power law depending on the distance to the blast center. The damage inflicted by a blast and its ability to break through an armor sheet now drops as the distance increases faster than before, but became much more powerful at very short distances. It also should be noted that engines, drivetrains, reduction gearboxes, ammo racks and other large pieces of equipment now have their own hard casings modeled where applicable and they can protect them from some damage.

The visual and audio representation of the damage is also updated. The additional causes of the unhearable hits in multiplayer have been found and fixed, new sounds were added for ricochets while the existing hit and explosion sounds were improved.

In general, the update 4.005 once again is going to be one of the biggest in the history of our project, its change list contains more than 90 items already. It will bring not only the damage model improvements of course - the new content we told you before, many improvements and fixes for the aircraft and player controllable tanks, audio improvements for various in-game objects and more and more. The sim will be more accessible to the larger audience thanks to the additional language as well.

Our team hopes that the update 4.005 will be welcomed by you, our players, and will raise the quality level of our sim to the next level. To finish today's diary, let's add some nice pictures to the mix - this time they are the Yak-9 cockpit shots captured in the game. Its texturing is nearly final while the development of its FM is progressing at a full speed. We hope it will be available to you in early Summer.