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Leatherneck: AJS-37 Viggen


Post Tue Jun 28, 2016 6:59 pm
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Cobra ha comentado las fuentes de acceso para el AJS-37 Viggen de Leatherneck, el simulador militar del AJ-37 de Swesim y dos modelos estaticos en museos.

http://forums.eagle.ru/showpost.php?p=2 ... count=2171
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Post Fri Jul 15, 2016 6:49 pm
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Cobra comenta que la mayoria de la funcionalidad del AJS-37 Viggen está completa y empiezan a trabajar en el arreglo de bugs y en la realización de misiones y campañas. El trabajo artistico se ha retrasado. Tambien habla que espera añadir un JA-37 Viggen como compañero IA al modulo.

http://forums.eagle.ru/showpost.php?p=2 ... count=2391
The Viggen is for the most part feature complete. Mostly bug fixing and mission building in progress.
Artwork has been lagging behind, hence the delay.

Yes, we hope to include a JA-37 (even Di) as an AI companion to the AJS. Doing a full-fledged JA-37Di is a lot of work. Perhaps a lite (FC) version down the line or something. No decisions made yet.
The main reason we've spent time with the Di lately is because it's the only Viggen around my parts (Graz). As mentioned previously, we've spent a lot of time in various AJ/AJS cockpits already.


Por ahora, nada del teatro, todas las misiones serán en el caucaso hasta nuevo aviso. Nos avisarán cuando lo tengan mas avanzado:

http://forums.eagle.ru/showpost.php?p=2 ... count=2396
For now, all Viggen content will be on Caucasus.
We'll announce concrete theatre plans as we draw closer to a development close on that area.

The Viggen will come with training missions, single missions and two campaigns (mini & extended- extended may be post-release).
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Post Thu Sep 15, 2016 11:03 pm
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Algo se mueve..... Update de Cobra con el AJS-37 Viggen

https://forums.eagle.ru/showpost.php?p= ... count=2865
And just a quick update for everyone:

We're still working on solving bugs and merging new artwork into our existing codebase.
Many of the items in the July update are being checked off-- but we're still a ways out.

A few odds and ends (features that were "missed" or set as future Todos) are also being taken care of.

It's important to us that the Viggen is a very complete release, so that we can minimize the post-release support timeframe and focus our resources on the F-14 and other, future aircraft.
That said though, due to the size and complexity of the project, in comparison to the MiG-21, it's going to be an all hands on deck situation.

I wouldn't expect more than a few weeks between announcement and release. That's the hope and plan, in any case!

Thanks for all of your support.
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Post Wed Oct 19, 2016 12:52 pm
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Video Teaser sesentero en VHS del AJS-37 Viggen de Leatherneck XD XD XD
https://forums.eagle.ru/showpost.php?p= ... ostcount=1
https://youtu.be/vjpkfAtOozw
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Post Sun Oct 30, 2016 9:51 am
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Segundo teaser del AJS-37 Viggen por Leatherneck, Ghosts and Thunder

https://forums.eagle.ru/showthread.php?t=176200
https://youtu.be/YKLRctxPY6k

Al final del video, se muestra información sobre una transmisión por twich de LN (28/11 20:00 CET)
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Post Mon Nov 28, 2016 3:34 pm
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Seccion del AJS-37 Viggen abierto en la sección de Leatherneck en el foro de ED, estamos a unas horas de la retransmisión de Twitch del AJS-37 a las 20:00 CET
https://forums.eagle.ru/forumdisplay.php?f=522
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Post Mon Nov 28, 2016 7:21 pm
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Presentación del AJS-37 Viggen por Leatherneck Simulators

https://forums.eagle.ru/showpost.php?p= ... ostcount=1
Swinoujscie, Poland November 28th 2016 – AJS-37 Viggen coming to DCS World!

Leatherneck Simulations, in association with The Fighter Collection and Eagle Dynamics, are immensely proud to announce the development of the AJS-37 for DCS World!

The AJS-37 Viggen is a Swedish double-delta supersonic attack aircraft from the late Cold War. It was the backbone of the Swedish Air Force during the Cold war, serving as the main attack and anti-ship platform.
The AJS is the 90’s upgrade of this 70’s era aircraft, adding several advanced weapons and systems functionalities.
The aircraft was designed around the pilot, with an excellent man-machine interface, supporting the pilot through the smart use of autopilot systems and HUD symbology in order to deliver the ordnance onto targets from treetop level with high speed attack runs.


Key Features of the DCS: AJS-37 Viggen include:
Highly detailed and accurate 6-DOF (Degrees of Freedom) cockpit.
Extensive and highly detailed aircraft modelling systems such as:
CK37 aircraft computer with navigation data, time on target, and fuel calculation systems.
Data input / output interface and pre-planned data cartridge functionality.
Automatic dead reckoning navigation and terrain contour matching position update system.
Flight instrument systems.
Electrical and hydraulic systems.
Advanced RM-8A jet engine modelling with thrust reverser, compressor surges and stalls.
Sophisticated high-resolution air-to-ground radar technology modelling the PS-37/A radar including:
Multiple radar amplifications and filter settings.
Obstacle detection mode.
Memory mode.
Air-to-Air mode.
Highly accurate advanced flight model based on real performance data and documentation.
Maritime reconnaissance capabilities to determine position, course and speed of vessels.
Advanced programmable weapons such as the RB-15F anti-ship missile with multiple waypoints and the configurable BK-90 “Mjolnir” Cluster munitions dispenser.
Detailed modelling of over 14 unique weapons and miscellaneous stores with multiple versions and delivery methods, ranging from rockets, bombs, to advanced air-to-ground missiles such as the command-guided RB-05A and the TV-guided RB-75 “Maverick” missiles.
Comprehensive 400+ page flight manual.
Extensive interactive & voiced training tutorials.
Several campaigns and missions including:
Caucasus campaign
Mini NTTR DACT campaign
Mini Caucasus introduction campaign.
Instant action and single player missions.
This is the product of several years of passion and dedication and we are happy to finally announce the aircraft. We hope you will have as fun learning and flying the aircraft as we have had recreating it.

https://youtu.be/BfVkZpFirfE

Sincerely,
The AJS-37 Development team,

Leatherneck Simulations.
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Post Sat Dec 10, 2016 1:01 pm
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Leatherneck enseña su tecnologia de radar de tierra para el AJS-37 Viggen, que incluye detección de objetos por RCS (afectado por distancia, tamaño y encaramiento), interferencia al radar, mapeo de terreno y modo de evasión de terreno. Tambien parece haber implementado la interferencia electronica en buques.

https://forums.eagle.ru/showthread.php?t=178620
One of the biggest, most difficult, and most important features of our AJS-37 Viggen simulation, has been the creation of a custom, physically accurate and performant ground mapping and targeting radar. Developing this technology has been a challenge for us, as finding the right balance between image fidelity, quality and CPU/GPU performance is quite tricky.

We'll spare you most of the technical details, but we managed to develop a combined, CPU/GPU based solution that has virtually 0 impact on game performance, regardless of your radar range setting.
This has been a really great breakthrough for us, as we can now continue to develop our technology, and even apply it in non-ground mapping radars, such as the F-14.
As you all know, a skilled operator could make all the difference in reading the raw radar scope of the F-14-- and we want to make sure that that is accurately represented.

It's really the same in the Viggen, and almost every major/important system in the aircraft has some relation to the PS-37/A radar.
In order to become a proficient Viggen pilot, you’ll have to learn to read the radar screen (which is actually not quite that easy!) - and then apply the information gathered to your flying and navigation.

Enjoy some quick screenshots and descriptions below- we’ll certainly dive deeper into the radar before release as there is a lot to cover!
Expect to do a lot of reading in the manual too. :)

In this first set of images, we are tracking a convoy of ships, located almost directly in front of us. These are large, cargo ships and cruisers, so their radar return is fairly hefty.

For the PS-37/A, we've implemented a basic RCS simulation for all ship classes.
This means that bigger ships will appear more prominently on the radar screen.
However, something like ship direction has an almost equally large impact on how much radar energy is returned. Direction, speed, radar settings, and ship class, will all combine to determine how prominent a radar return actually is.

In the first image, the convoy of ships are traveling perpendicular to our Viggen.
In the second, we're approaching the group from the rear. Note the difference in radar return strength.

Image Image

Here is a similar example, of two Admiral Kuznetsov carriers, placed next to eachother.
The one on the left is facing almost perpedincular to our Viggen, while the right one is facing towards us.
Of course, the difference in RCS is more noticeable with smaller vessels.

Image

We've also spent some time implementing realistic jamming patterns and filters. Larger classes of ships and other units are capable of jamming.

A number of filters are used to try and filter the data, and to improve the readability of the image. Here is an example of three ships jamming our Viggen.

Image

Of course, one of the main purposes of the Viggen ground radar, is to actually map the terrain!
Terrain mapping is achieved by real raycasts, and reflection strength is dependent on the reflection material.
Meaning, concrete, grass, forest, rivers and other bodies of water are well contrasted and represented on the radar screen.

Ground vehicles will be visible, however mostly so when they are bunched together. Don't expect something akin to an F-15E ground mapping radar. :)

Here is a quick example of a river and a few fields/forests, as well as the Anapa area. There is a destroyer off the coast in the second image.

ImageImage

One of the more useful features of the ground mapping radar, is the Terrain Avoidance mode.

The terrain avoidance mode is designed to allow flight at low altitudes in poor visibility. On engaging the mode, the radar antennae will be set to 0 degrees relative to the horizn, and the antennae beam will be narrow in altitude. This results in the radar only displaying radar returns at the same altitude as the aircraft.

In this first image... I'm about to die...

Image


In these two images, you can see the difference between the regular mapping mode (note the clear areas, due to radar beam occlusion) -- and the terrain avoidance mode, which gives us a much clearer image of where we are, and what the heck we're supposed to do.

Image Image



There's a lot more to show than this-- as the radar is very closely integrated with various weapons systems, navigation, landing markers, and all that fun stuff! So stay tuned! :)

Don't forget to tune in later today for the MIG-21 / F-5 / AJS-37 LIVE grudgematch on twitch at the link below!
https://www.twitch.tv/hooks_stream

The AJS-37 Viggen will be making its' live combat debut. Hope to see you there!


Many thanks for your support!

LS
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Post Sun Dec 18, 2016 2:12 pm
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Arranque, taxi y despegue del AJS-37 Viggen por Leatherneck (el segundo video es sin la voz)

https://forums.eagle.ru/showpost.php?p= ... ostcount=1
Hey Everyone,

We put together a short startup, taxi and takeoff video for you guys.

For the purists, and those who cannot stand by blabbering (i cant blame you) -- the second one is without VO. :)

https://youtu.be/zfN9fQq2puY

https://youtu.be/Y-S_lkUYTtU
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Post Thu Dec 22, 2016 3:01 pm
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A ED se le acaba de flitrar el video del AJS-37 (es el mismo de Leatherneck).

https://youtu.be/Otn7QwzmbGk

Según la descripción del video, la precompra empieza mañana 23 de diciembre y la salida el 27 de enero de 2017
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