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Leatherneck: F-14A/A+/B

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Silver_Dragon

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Re:Leatherneck: F-14A/A+/B
« Respuesta #15 en: 04 de Abril de 2016, 00:06:35 am »
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Re:Leatherneck: F-14A/A+/B
« Respuesta #16 en: 10 de Abril de 2016, 12:02:41 pm »
Buenos dias por Leatherneck
https://gfycat.com/ConstantWateryFox
« Última modificación: 10 de Abril de 2016, 12:05:10 pm por Silver_Dragon »
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Re:Leatherneck: F-14A/A+/B
« Respuesta #17 en: 02 de Mayo de 2016, 10:20:17 am »
Update del 2 de Mayo, progresos en el CV-70/1/2 Forrestal class y la tripulación de cubierta. Hay que tener en cuenta que comentan que la tripulación animada puede no estar para la salida del F-14, creo que porque requieren que ED implemente alguna cuestión sobre animaciones avanzadas (planeado por ED) y/o funcionalidad en buques.

http://forums.eagle.ru/showpost.php?p=2764182&postcount=1
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Hi All,

Many thanks for all of your support and excitement for the last update and additional images we posted!
It's always exciting to share what we're working on; and pretty soon we'll be coming close to sharing years of hard work with you.

As we move into May; the team progresses into a hard, month long crunch on the AJS-37 Viggen project.
Refrain from drawing any conclusions from this cursory information- but we're excited about growing closer to completing our second product and follow up to the MiG-21bis.

We'll soon be stuck neck deep in the superficial polishing stage. :)

In the meanwhile; we continue to work hard on the F-14A / B as well as the accompanying CV-60/1/2 Forrestal class carrier.
We've completed modeling of our flight deck crew; and will be modifying this base to suit all of the various crew you'd find on a busy carrier flight deck.


Smell my finger

We've also already created the low poly version of this particular character; baked him down and rigged him.
Generally, all of our characters will appear just as detailed in the game as they do in these renders.



As mentioned in the last update, our goal is to try and include as many deck animations as we possibly can. Of course, it's quite possible that this particular feature will not launch together with the carrier or aircraft.
However, that has not stopped us taking our first steps with Motion Capture.

Here's a rough capture (pre-cleanup) of one of the many animation sequences we'll be looking to recreate



The past few weeks have been spent shaping the hull and major structures of the vessel, as well as more detailing on the island and associated components.

It's still early days; and while our team has had significant experience in modeling naval vessels in the past months- the Forrestal class is certainly a challenge.
We'll take another pass at our new base, make sure it is correct, and then move on to detailing the hull and major hull components.







In the last couple of weeks, we posted a few images and .gifs in various places around the forum.
On the off chance that some of you missed these; here they are again.

At the risk of sounding like a broken record- keep in mind that these are still very early. :)





We still have lots of cool F-14 related stuff coming up before we wrap things up and unveil the Viggen, but in the meanwhile, many thanks for reading this short update and for all of your support.




Thank you!
LS

« Última modificación: 02 de Mayo de 2016, 10:30:39 am por Silver_Dragon »
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Re:Leatherneck: F-14A/A+/B
« Respuesta #18 en: 10 de Junio de 2016, 18:12:49 pm »
Relaciones internacionales por LN  XD

https://www.facebook.com/leathernecksim/?fref=nf
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Keeping up Foreign Relations is an important milestone in the development process!

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Re:Leatherneck: F-14A/A+/B
« Respuesta #19 en: 11 de Junio de 2016, 16:22:30 pm »
Mas por Leatherneck y el F-14

https://www.facebook.com/leathernecksim/?fref=nf
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Carrier qualifications underway!

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Re:Leatherneck: F-14A/A+/B
« Respuesta #20 en: 20 de Agosto de 2016, 23:50:56 pm »
Desarrollo del modelo de vuelo de la AIM-54 Phoenix por Leatherneck para el F-14 Tomcat

http://forums.eagle.ru/showthread.php?t=172708
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Dear All,

For the F-14 project, we realized that we'll need to spend considerable time and effort with the development and research for the AIM-54 Phoenix missile.

Not only due to this weapons' unique place as a weapon designed specifically for the AWG-9 radar system, its' role as the tip of the spear of the USN air-to-air capability or even it's amazing range and performance-- but also to ensure that any advantages and disadvantages of the missile are accurately reproduced and respected.

It's quite likely that the AIM-54 will change the players' experience in the DCS multiplayer environment.
Thus, we consider it of the utmost importance to have a wide breadth of open and readily available research available to the community.

We have no horse in this race except for historical accuracy, and with Tom and Márton at our side, we're confident that we'll get as close as anyone ever has.
Please enjoy their initial development report on the AIM-54 below;

Basic Overview

Since the inception of the F-14 project, we have been working closely with Leatherneck to provide our expertise in providing the most accurate simulation for the AIM-54 that can be reasonably developed on a flight simulation game development budget. The iconic nature of the AIM-54 deserves this level of attention, especially due to its long range and advanced guidance systems; systems that were later incorporated into the AIM-120. It's also very important to maintain strict accordance with real life performance parameters, so that historical advantages and drawbacks are accurately simulated and have the appropriate effect on the multiplayer environment.

As it stands of writing, we are currently simulating drag effects at different velocities and altitudes to ensure accurate drag curves. This is perhaps the longest part of the process as each simulation takes hours to run. 

This simulation is based off of a 3D CAD model from which has been created based on reliable source material as well as high resolution imagery. The model has been imported into Fluent where a mesh creation, testing and validation process began and has now been completed.

Once all the simulations have been run, we are able to take this data and then use it to create velocity/time diagrams. These will be matched against literature estimates to revalidate the model.

Once established, we will then be able to write DCS code which will mirror the in-game missile’s performance to that which has been simulated. The final step is to then assist Leatherneck with their work in guidance and radar algorithms. The missile has the range it does, not just due to its huge motor, but also its advanced lofting profiles. These exist in the game at the moment, but will be significantly expanded, as their simplicity often leading to worse performance than level flight.

Research

The first step in the process was to data mine as much as possible about the missile. Fortunately, due to its age and public interest, quite a bit of information is available. The most important information for us was the missile’s motor performance and dimensions, the latter being a relatively easy task if taken just from high resolution photographs.

As for the motor, there have been a lot of questions raised across the internet about the Mk-47 vs the Mk-60 motor, and which version of the AIM-54 received which- and why?

In summary, the first motor produced for the prototype was the Mk. 47, which yields 364lbs of propellant. The Mk-47 was produced from the mid- 1960’s up through and until ‘92.
In parallel, the Mk-60 motor was produced with 459lbs of propellant, obviously a much larger motor. However, due to rising costs, this motors' production was cancelled in 1978.

What this basically means is that the AIM-54A had the choice of either motor, and by the time that the AIM-54C was available in the late 70’s/early 80’s, the Mk-60 was no longer in production. The motors were not retired, however, and some were still in service in limited number. As the years progressed, the Mk-60 was removed from service as service life came to an end and the AIM-54C and C+ exclusively used the smaller Mk-47 motor.

CAD

As mentioned previously, the CAD model for the AIM-54 was created from reference material providing exact dimensions, with more specific details (e.g. angles, radiuses) taken from photographs.

We omitted details that would be otherwise masked by the resolution of the numerical mesh (small protrusions)

Figure 1. CAD Model used for the simulation


CFD

The simulation of the supersonic regimes was carried out using a density based solver with all compressibility effects and SST turbulence.

The mesh was created in a way so that it gives good shock resolution in the necessary velocity regions (M1-M4) and damps possible reflections from the boundaries. 
The mesh uses hexahedral cells to reduce computational costs and improve accuracy.

The preliminary simulations managed to reproduce all expected shockwave behaviour and interaction phenomena. Currently, we are testing the mesh to make sure it produces the necessary mesh density convergence.

After this step is complete, we can begin the accumulation of data based on the simulations.

Figure 2. Unstructed mesh with refined shock regions


Figure 3. Oblique compression and expansion waves along the missile


Figure 4. Shockwave interaction along the missile, the image shows constant pressure lines


Figure 5. Bow shocks at low supersonic velocity, the image shows the density distribution (lighter = higher density)


Future Developments

Once the simulations are complete and we are happy with their accuracy, we will create a DCS AIM-54 based on this data.
Iterative tests and benchmarks will be run at altitude to ensure that it meets the CFD modelling.

Once the missile matches like-for-like, we will begin to look at the guidance and lofting algorithms.
There are a number of sources that already provide clear examples of efficient intercept and guidance laws that include lofting, one such source is directly from the US Navy Academy, for the then new AIM-120A.

Beyond literary sources, there are SMEs' willing to share their own accounts and insights into how the weapon is employed, and what we’d expect to see at different launch parameters.

There will be a lot of work and co-operation together with Leatherneck to ensure that the missile is expanded past current DCS guidance parameters.
This is the second most challenging part of the AIM-54's development, but I am confident that together with the Leatherneck team, we’ll recreate this iconic weapon to the utmost realism and standards available outside of military contracts.

Many thanks to everyone for reading. The team is hard at work on all aspects of the simulation!

Thank you for your patience and support, always,

Sincerely,
Leatherneck Simulations


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Re:Leatherneck: F-14A/A+/B
« Respuesta #21 en: 16 de Septiembre de 2016, 23:08:20 pm »
Bunyap muestra el F-14 de Leatherneck en DCS: World (version muy Pre-Alpha)

Segun Bunyap, el equipo que está desarrollando el F-14 es diferente al de AJS-37 Viggen y actualmente el equipo del F-14 está mas centrados en funcionalidad, mas que en entorno visual.


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This is early development footage of the DCS: F-14A/B Tomcat module being produced by Leatherneck Simulations:

Check here for the latest updates:
http://www.leatherneck-sim.com/f14/
https://www.facebook.com/leathernecksim/
https://forums.eagle.ru/forumdisplay....

F-14 Tomcat Design Evolution:


One correction: The F-14 development team is completely separate from the Viggen team with programmers working on the Tomcat full time. It is only Cobra who is moving from one to another as I noted.

Update de Cobra
https://forums.eagle.ru/showpost.php?p=2902732&postcount=1
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Dear All,

Bunyap was awesome enough to take the time and help us with releasing some very early carrier physics trapping and mechanics footage!

We've made a lot of progress over the past few weeks in implementing appropriate physics forces and other mechanics that allow for extremely accurate carrier trapping mechanics. This also brought with it a lot of work on the suspension of the aircraft.

Big thanks from the LN team to Bunyap and his awesome work to the community

Enjoy!


Editado..... durante el video, había unos cuantos AJS-37 Viggen revoloteando por la zona :D
« Última modificación: 16 de Septiembre de 2016, 23:45:36 pm por Silver_Dragon »
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Re:Leatherneck: F-14A/A+/B
« Respuesta #22 en: 29 de Noviembre de 2016, 23:13:50 pm »
Leatherneck nos confirma que el F-14 Tomcat se nos va a mediados / finales de 2017 en Hoggit. Aun asi, esperan que a principios del año que viene nos den mas información

https://www.reddit.com/r/hoggit/comments/5fdkal/we_just_announced_the_dcs_ajs_37_viggen_now_were/dajdo0l/
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Development is progressing very well, with a slight dip in production speed due to the impending Viggen release. Mid to late 2017 is looking very likely, but we’ll keep you well informed until then. A HUGE amount of FM and systems work has been developed in the background for this Aircraft, and we are really excited to show it all off starting very early next year.
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Re:Leatherneck: F-14A/A+/B
« Respuesta #23 en: 02 de Abril de 2017, 18:50:23 pm »


Y algunas imagenes...


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Re:Leatherneck: F-14A/A+/B
« Respuesta #24 en: 28 de Abril de 2017, 19:51:36 pm »
Del FB de HeatBlur

ANR-45 RWR funcional


y unas cuantas fotos del desarrollo del portaviones Forrestal y su "futura nueva linea de aparatos de la marina".......  ;)





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Re:Leatherneck: F-14A/A+/B
« Respuesta #25 en: 14 de Mayo de 2017, 19:45:35 pm »
Video del sistema ALCS en el F-14 Tomcat....

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Re:Leatherneck: F-14A/A+/B
« Respuesta #26 en: 19 de Junio de 2017, 19:50:34 pm »
Imagenes de uno de los "Chaquetas verdes" del personal de cubierta del Forrestal, a nivel LOD0, prioritarios junto al Portaviones para el F-14. El nivel de detallado ya roza lo enfermizo.





No contentos, nos ponen el mismo chaqueta verde en el motor de DCS World (Modelviewer, supongo).



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Re:Leatherneck: F-14A/A+/B
« Respuesta #27 en: 27 de Agosto de 2017, 18:48:30 pm »
Imagen de la cabina del RIO del F-14
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Re:Leatherneck: F-14A/A+/B
« Respuesta #28 en: 29 de Agosto de 2017, 16:31:20 pm »
Para.
PARA.
Eso significa que es multipuesto.  :shock: :shock: :shock: :shock: :shock:

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Re:Leatherneck: F-14A/A+/B
« Respuesta #29 en: 29 de Agosto de 2017, 22:49:39 pm »
Si señor, entra dentro de sus planes, ademas piensan hacer como en el UH-1H / Mi-8 y cambiar de puesto en caso de vuelo solitario o tambien el 'Jester IA' que nos puede hechar una mano con las funciones del RIO cual Goose.
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