GOTHQ Get Out The Hangar Queens AJS-37 Viggen

I haven’t tried out the Viggen in VR yet…can’t wait. I’m reluctant to put on my VR headset these days with the boys home from school. I mean, I suppose the fire alarm would be loud enough to pull me out of VR…or the smell of smoke.

Anyone who has had two boys will completely understand. They destroy everything they touch.

6 Likes

Best wait till they pretend to be asleep :see_no_evil:

1 Like

The autopilot is quite fun and warrants a read of the manual, as it is a bit different. Some observations:

  • Pitch trim will can be used to adjust pitch angle in ATT.
  • Attitude hold (ATT) converts to course hold if roll angle is less than 7 degrees.
  • In course hold mode, you can push the trim hat switch left or right and the aircraft will enter a standard turn: 4.1km radius turn if airspeed is <M0.8 or a 1.41G turn if airspeed is >M0.8.
  • Altitude hold includes the ATT mode (roll or course) and in addition maintains barometric altitude. Altitude can be fine tuned with the trim switch.

Pretty neat - I can see how this would free up your workload quite a lot - let the aircraft do the flying while you’re working the radar and weapon modes etc.

2 Likes

OK - sent the boys out bicycle riding around the neighborhood loop…

Looks gorgeous in VR…as expected…

Wow…she’s so much more squirrely than I remember…

Just did a low level circuit and though the lesson was technically over after the takeoff, of course I wanted to land her…

I mapped the reverser to my pinky switch on the stick…but I must have been a bit too hot as I still ate up some runway and it sure didn’t feel like I was slowing very fast. Got a bit distracted by looking down to see if the reverser handle was indeed pulled…got a bit sidewise…good thing the gear is pretty stout!

With that embarrassing performance out of the way. I took off going the other way and managed a nice landing on the next pass with a short distance. Much better…

Then, feeling cheeky…I was like "oh…let’s pull up vertical after takeoff and do a loop back down to the runway… Uh…well, it didn’t dig that at all at whatever weight I was at. Mushed forward…fell like a brick…

7 Likes

Oh yeah the autopilot is a life saver. I use it quite a bit before fence in, and after fence out, or over water. Height hold over water is a life saver too, staying 10-20 m ASL manually is way more work than I like doing. I usually end up hand flying the actual attack route to stay as low as possible, but if you have some open plains ATT can come in handy to be able to relax a little bit as you whizz by under the power lines.

3 Likes

I made a simple waypoint mission, starting with a hot jet off Batumi and going for a quick tour of the coastline.

I did put a russian gunboat out on the gulf and managed to give the guys onboard a terrible scare with my rocket warning shots some 200m off their bow. That sure showed them.

After that I set up a quick mission with one waypoint (B1) + visual landing (L1). I kind of understand the landing HUD modes a little bit now but still not very clued up on the whole procedure. It’ll dawn on me in due course, I’m sure. I did manage to land home safely a few times, which was nice…no Viggens were killed in today’s practice session.

P.S. I’m glad I read about the autopilot transsonic regime - it would have been confusing otherwise with all the blinking lights!

8 Likes

I haven’t flown the Viggen for a long time, so I sat through the cold start training mission, and then the Intstant Action cold start mission. So far, so good. I was able to get her fired up in VR just using a flow…all warning indications extinguished (which is usually a good rule of thumb that you have done all the major items). In a sim, I generally get rid of system tests unless they really have to be done… you know with some certainty that everything will be in good working order. A quick flight reminded me that the aircraft is quite squirrelly on the takeoff roll if you are clumsy with the rudder… a quick trip around the pattern, with no major problems, a safe but firm touchdown and careful application of rudder, reverser and brakes brought me to a stop on the runway… Phew! I had the advantage of reading this thread first, so I was able to avoid some of the pitfalls. :sunglasses:

6 Likes

Speaking road-runways, I remembered this stretch of wide, straight road just outside of Sochi:

OK…its a bridge…but that makes it extra cool.

I put a few vehicles and static stuff to give you an idea of how it would work:

Looking north from ground level:

This is essentially the view from an approach from the south, heading north:

The view from the north end looking south.

Here is the cool part - plenty of parking…

…and a bunkered hangar!

The one draw back is that if you crash and damage the bridge, the whole bridge may collapse…I’m not saying that happened to me…but I’m not saying it didn’t :grimacing:

One other thing I added was a helipad near the “runway”. This allows you to at least get a vector to the “airfield” - it wouldn’t give me “Inbound” instructions - not sure if that was because I was in a fixed wing aircraft or that I hadn’t put a FARP control center at the site. I’ll play around with those today and also refuel, rearm (think you need FARP fuel and ammo) and repair (FARP tent?)

Any interest in my throwing something together as a template?

13 Likes

I want to see it!! I dont own the Viggen but I wouldn’t mind seeing a video from there. Looks a pretty cool spot to land a harrier as well while we are at it

Its something like 1,300 m long so you may be able to land something other than a Harrier. Do you have something with a drag chute?

2 Likes

I reckon that would be borderline with the sabre but I’m willing to try it…

Have you got either of the trainers? They can both do road landings just fine at full flaps - the nose sits nice and low for visibility and the stopping distances are short, in particular with a light fuel load.

1 Like

Well…through a random and very VERY welcome surprise that happened tonight I now own my very own AJS-37!

So I can gladly join in the road landing and base leg stall crashing!!!

This will be a very interesting month for me and this little monthly experiment we are all partaking in as to my knowledge this will be the first time that anyone is learning the aircraft from scratch during the GOTHQ!! How cool is that!! If I do my AAR’S properly and maybe capture some video (if I figure that out) you can all help me unlock the secrets of the beauty!!

9 Likes

Awesome! :smiley: Welcome to Mudspike’s “Svenska Flygvapnet”!

I am almost on the same boat as you - I’ve only ever done a couple of free flights / start hot from runway free flights in this bird. So it’s school time for both of us :slight_smile:

Looks like the Viggen’s actually got really good GOTHQ popularity, it’s great!

I’m supposed to be doing some writing for work at the moment (working from home), but it isn’t particularly urgent so I’m currently about 20% writing work stuff and 80% flipping between Chuck’s guide and the manual, getting familiar with what does what. :smiley:

1 Like

OK…I have filled out the Hosta EAF (Expeditionary Air Field) that I threw together yesterday. Here is the zip mission file.
Hosta EAF.miz.zip (15.6 KB)

I just added some stuff to make it look a bit better:

I’ve set up the Viggen so that Comms 1 is Kobuleti ATC and Comms E is “Dallas” ATC - the Helipad colocated with the EAF. That said, when I last tested, the Dallas callsign did not come up - just a blank. And it told me to divert to an alternate when I requested “Inbound”. That said, it seems to be capable of giving you vectors to the airfield area.

The bad news: My research tells me that you cannot refuel, rearm or repair using a helipad. Evidently only airfields and FARPS can do that. My next series of tests will be to determine If I can get a FARP to service a fixed wing, non VSTOL aircraft. I’ve got a plan that (hopefully) doesn’t involve crashing a bunch of Viggens. That said, there is something about the service structures or trucks being within 150 m of the center of the FARP…that is essentially the entire FARP. So…we shall see.

Anybody know if you can use scripts?

Evidently you cannot make a helipad act like a FARP

8 Likes

Nice testing! It’s a shame that there doesn’t seem to be an off-the-shelf solution to this…after all, the whole hidden hangar thing is a very crucial part of the whole design philosophy of the aircraft.

My knowledge is more about the Finnish doctrine, but I believe the Swedes had the same idea: you can only have so many military airfields, so the numerically superior enemy attacking from the East (whoever that might be) could destroy your air force at the airfields unless you can disperse the aircraft and operate from temporary field bases, which you can have more of than you have aircraft (making it impossible to effectively track / bomb every one of them).

Finland has a lot of long flat stretches of land with roads…and many little hidden, camouflaged garages and underground hangars that conveniently fit a fighter. That’s was one of the reasons the F/A-18 works so well for us - the folding wings means you can hide one just about anywhere.

https://www.instagram.com/p/B2Et8DLFPWO/?igshid=1ijmiczzwntj6

Temporary road bases would be a substantial gameplay feature!

4 Likes

FSX had a system where you could add arresting arresting gear to scenery - that would really open up the roads for traps like in the photo - oh what fun we could have!

2 Likes

I am to busy with other stuff so I will probably not be doing any flying in the near future.

But eventually I will get around to it.

Meanwhile, here are a couple of setting up road rearm/refuel bases and landing, for the Viggen videos.

Disclaimer. I have not tried any of this, so don’t know if any of it still works.

Grim Reapers

AJS37 Viggen: Building A Road Side Re-Arm Base FARP Tutorial | DCS WORLD

Solution To Viggen Multiplayer Road Farp Bug! | DCS WORLD

Creative Fun

DCS AJS37 - Viggen Landing Tutorial 1/3 - Visual Approach

DCS AJS37 - Viggen Landing Tutorial 2/3 - AFK and TILS

DCS AJS37 - Viggen Landing Tutorial 3/3 - Road Base Refuel and Rearm

GrmlZGaming

DCS - Viggen Road Warrior

Enjoy and Happy Viggening

6 Likes

Seen some of these and thanks for posting I am sure there was a workaround for the harrier that should fit the bill if I can find it


This may offer a solution mate

Also this is using the kneeboard to rearm and refuel

More info
Introduction:
The BAS-90 system was a dispersed roadbase system used together with the Viggen-system. During the Six-day war the Israeli air-force managed to destroy the majority of the Egyptian air-force while the Egyptian planes was still on the ground. In response to this the Swedish air force wanted to increase the survivability of the ground crew as well as the aircrafts while they were on the ground. During wartime the ground crew and airplanes were distributed to small short road bases that were built around the conventional air bases. The runways were part of the civilian road network and would be closed off when an airplane took-off or landed. The ground crew would rearm the airplane and then quickly disperse to a new location. In DCS the actual road bases are yet not available but the possibility to have a mobile ground crew has been included in the update before last friday’s. The feature is still very much work-in-progress and the current version should be considered a preview. Bugs will happen! Please report them here.

How to place the ground crew in the mission:
In the Mission Editor, create a group of ground units. Normally the group would consist of a lead car of any type, a ammo truck of type “Transport M818” and a fuel truck of type “Tanker M978 HEMTT”. Change the name of the leading car so it starts with exactly “GroundCrew” (without quotes). The name could be “GroundCrew #3” or “GroundCrew BlueFor” or anything similar. Place the units anywhere you are able to get near them once you have landed, this could be anywhere on the map.

How to use the feature once in the game:
Land near the ground crew and taxi as close as you can. Bring up the kneeboard (RShift+K) and turn to the Ground Crew page (use [ and ] to change page). If you are close enough to the ground crew, you should now be able to select loadout, fuel and relocation options. The relocation option is only available if you are flying in single player or if you are the host in multiplayer. If you are too far away from the ground crew the page should warn you about this. Use LAlt+LCtrl+L to cycle the different loadout-options. Use LAlt+LCtrl+F to select how much fuel you’d like. Use LAlt+LCtrl+R to select whether you’d like the ground crew to remain where they are or if they should relocate to your L1 landing base as programmed into the CK37 flight computer. Press LAlt+LCtrl+Enter to confirm your selection and then wait while the ground crew works on the plane. Once you have taken-off again the ground crew might relocate to your L1, if this is what you have selected.

Have a look at the attached example mission. When you start the mission land on the road that you are aligned toward when you start (after you passed the city). Further down the road a ground crew are waiting for you, near an intersection. Taxi close to them. There are two reference-points added in this mission (9201 and 9202). On you datapanel, turn the data-selector to REF/LOLA, switch input/output-switch to IN and input 9202 and push L/MÅL. If you have the ground-crew page up in the kneeboard and selected the option to relocate to L1 it should tell you it will take the ground crew approximately 22 minutes to get there. You don’t need to use a reference-point, you can also use arbitrary coordinates. Once you are happy with your settings confirm it and after the rearming and refueling is finished take-off, fly around for 22 minutes, and then land on L1 where the ground crew will be waiting for you. In the mission there are also examples of a stationary ground crew near a small airfield and one that is controlled through the radio/mission triggers (F10-menu).

Happy rearming!

https://forums.eagle.ru/showpost.php?p=3105599&postcount=1

3 Likes