SAAF JAS-39C Technical Data and Discussion

Hm, i will look into this starting from next week and either make a new bug report or a whole new suggestion. I have ordered more books than what i originally have on the Gripen so i will use multiple sources but any specific sources about the MS upgrades would be welcome. I know that some MS upgrades even have blocks in them so i think the best way to go is a whole new suggestion and ping some moderators to look at it.

Will start with this next week.

1 Like

Well feel free to use the few sources i have listed from my bug report. You can also check SAAB for trade deals for stuff like the Hungarian MS20 one i have in my list. Could help find what nations had MLU 19 and 20 models.

2 Likes

Only MS version with blocks is MS20 from what I’ve found, could be wrong though. The MS 20 Block 1 we got in Sweden around 2015-2016 I know had the MK3 improved radar and the MS20 Block 2 that I think we are on now and also which the Hungarians and Czechs got two or three years later I think has the MK4 radar (non AESA variant). MS20 Block 3 I am not sure when it is implemented, could be what we are on now in Sweden idk, could also come somewhere in a year ig. From what I understand MS20 Block 4 is going to be implemented around 2027-2028. Could very well be wrong here and that 2027-2028 is for MS20 Block 3.

1 Like

This is my understanding also and from what i have heard.

Yeah, i don’t know of earlier blocks on the MS outside of the MS20. I could always email SAAB again but of the like 6 emails ive sent ive had 1 reply lol

ESTL uses the same interface as AIM-9 and AIM-120 so should be able to be mounted on any of those pylons:
Screenshot 2025-03-21 170531
(https://web.archive.org/web/20170622034243/http://saab.com/globalassets/publications-pdfs/eds/electronic-warfare-ew/234-0393_estl_folder_a4_final_web_pages.pdf)

TBF i haven’t seen it mounted on any older Gripens so idk if they need to connect to the pod or if the pod handles everything by itself.

I think they need to connect at least to some degree.
I don’t know how they work for each specific country but they can even be controlled wirelessly:
Screenshot 2025-03-21 171006

1 Like

That my thing, MS20 and MS19 added systems that allowed for the vehicle to actually use weapons that needed to be linked and mounted to the pylons, i assumed ESTL worked in the same way and given the pods age to me at least i doubt something like a late 2012 Gripen A could use a ESTL pod or early MS18 Gripen C.

Sounds reasonable :)

1 Like

I could be wrong and would love to honestly know but im just using age and other examples to try and rationalize it. To be honest i dont think we will ever see a Gripen C with an ESTL pod but maybe one day…

i really think Gajin doesn’t care about these levels of specifics look at the Mirage 2000, Rafale and the Eurofighter

More like they didn’t care about the Gripen from the beginning. The A isnt the A and the C isnt even the C. The gripens currently are entirely fictional with the current implementation.

3 Likes

Hey people ! I’ve been wondering lately why does the canards move up on the gripen ?

Afaik, they should move downward from time to time, especially at high AoA, yet they don’t.

What do you mean?

Mate, Gaijin doesn’t fix minor nations: they nerd them until they’re unusable so we are forced to play the Big Three (paychecks): Germany, US, and Russia

Gripen’s canards irl go downward when you pull AoA, meanwhile in the game they constantly go up like an elevator

Are you trying to say that the canards try to level out the plane when the rest of the plane is trying to make it turn?

Because that would be very dumb.

He is right though. In this video you can see the canards deflecting down when the aircraft is flying at high AoA (0:30 onwards):

4 Likes

That is exactly what they do IRL :) (well, not trying to level out, but angling down in relation to the rest of the plane)
the JAS39 is statically unstable and wants to inherently do a backflip if no other correcting inputs are made, so just a tiny bit of pitch up to the canards will make the plane start the “backflip”, the canards then have to pitch down to stop the backflip and keep the AoA and thus do a turn. The canards are usually angled just above the direction of flight (not where the nose is pointing but where the “wind” is coming from i.e. “below” the planes belly). Its kind of hard to describe with words. so using this image as reference:

c0d4b9f9ae1ea4b75428c5393453bc4c79ee58f2

The canards would then be angled a bit above the trajectory (relative wind) so will still “add” pitch up in relation to the wind but below the longitudinal axis as to not add to much and flip the plane. Had the canards been straight or even pitched up then the plane would have gained even more alpha and stalled out VERY quickly.

If i have understood things correctly then the reason for them acting like they do in game is because no plane at all is modeled to be statically unstable as the game-engine cant handle those situations/calculations as it currently is, everything is just flight models adjusted from “normal” stability to resemble the IRL capabilities.

Edit:
Some spelling and clarifications.

Edit2:
This video shows it very well:

4 Likes