JA37 Viggen tech

Did some digging over the JA/AJ 37’s and noticed that they had a Central Navi-Computer, early models heralded a CK 37 system, and later a modification of the SKC-2037. This was in the Late 60’s, which was before the F-14, which makes me raise the question of was the F-14 really the first Micro-processing laden aircraft.

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(The CK 37, known for being the first airborne digital computing system)

As for the second thing I noticed, and have noticed in game for a while, was a rear facing MAW (IR) system, while if warned the pilot of incoming IR missiles, however the pilot was required to manually deploy CM’s, this would be a great addition to all of the Viggen aircraft, and allow for better gameplay in hectic environments.


(The IR receiving block shown on the very rear of the aircraft in a dome shape, this is a Di model, but the JA37C is confirmed to carry it)

It also sports one of the first monopulse radar system on aircraft. This can send track and directional info with a single radar pulse, and have a much higher immunity to jammers. (These were tested, and had a 50/50 shot of tracking and F-4 phantom on the deck, with ECM systems)

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(Image of the JA37 with the Radome removed, showing the Ericsson radar)

It is also lacking a 50km BVR/ACM mode, which was present on the JA models, greatly improving its effectiveness and capability with the AIM-7E-2, which also had the ability to multi-slave the missile to two painted radar targets. Giving the ability to also track two targets while scanning and locking the AIM-7E-2’s. While all of this, it is also capable of using its terrain avoidance system, allowing extremely low flight and terrain mapping.

On another note, I opened a thread on the Viggen D weaponry, which I would like to restate, I’d like the addition of the RB-99’s, however, allow it to receive all of its systems, and put it at 13.0, and folder it under the current D, as the Di model.

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I added some images now :P

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I also forgot to mention that in the end of the frontal suspension gear, on touchdown and braking, the nose would compress it to a switch, and when the thrust reverser was on STBY, would automatically deploy the reverser, the wheel speedometer would kick in and automatically control the engine and brakes.

It also has an automatic landing system as a whole, but, there wouldn’t be a reason to add this in game.

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whats your source on the maws may i ask, ive seen it mentioned occasionally but its never brought up in official documents
It also uses Skyflash which is a heavily upgraded E2
And and 50km ACM mode?
Two painted targets? it only has one CW illuminator unless you means Jaktlink

Sorry, I meant Look down mode.

Apparently somewhere in this book:

On page 1261

Yes, I know

From a pilot, they state that it has no forward looking IR or MAW compared to the RWR giving a direction.

unfortunately that gives us very little and im not even sure if it had one in the first place

this would be extremely useful for console

If it says no forward looking it denotes that there is a rearward looking one. Which would make great sense as the pilot has horrid rear visual.

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As much as i am a viggen fan, i am a bit sceptical because of the context of the source, the lack of info and the lack of it mentioned in any formal capacity from any official sources

Then what is the bit on the end of the aircraft, which looks like an IR reflection receiver, both IRL and in game.

JA37:

AJS37:

Micro-processors are merely a possible component of a digital computer and not all digital computers had micro-processors. For instance, the Apollo Guidance Computer is also a digital computer, and it definitely did not have a micro-processor.

Yeah, and it’s still the first of its type, beating the F-14 by a solid 7 years. It seems to (for what it was computing and at the time) fairly compact (only 2-3x the size of a full size desktop, or full form factor PC)

do you mean the black ball on the back of the fuselage?
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because its the rwr

Ahh, it’s possible that it indeed doesn’t have it then. Would be a lovely feature however.

will never be added however, tho i agree its defo cool to hope as there are things we dont know about the viggen

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I really wish they’d add the automatic thrust reversal. Could should and would work like the automatic chute deployment we get currently at around 300 ish km/h (for planes that are boring and don’t have thrust reversal obviously)

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Interesting, do you have any documents, because I am interested in the “layout” of how the computer operated and when I had a quick look technical info was pretty sparse.

i can show you later on

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Thanks

Here some info on its predecessor, the DS2.

If it uses a similar design, it’s likely that it’s just an advanced version of a Transistor computer.