renhanxue

Yeah, I don't have the exact year but I believe 1985 or more likely 1986. They probably didn't last long after that.

It's an emergency checklist (the labels on the cockpit sides are similar but for other situations). Not at all surprised that machine translation butchers it, it's probably pretty cryptic to a native Swedish speaker who isn't a Viggen nerd too... MS = max släckt, max dry thrust. BRÄNSLEREGL(ering) to MAN switches the fuel feed control system from automatic mode (fuel feed to the engine controlled by an analog computer) to manual (fuel feed is directly proportional to throttle position). AFK is the autothrottle but you probably recognize that one.

Great drawings and recognition guide! However, the devil is, as they say, in the details... spot the weirdness in this photo:

However, see also

Left side, just beneath the canopy, IIRC.

The "fix trigger" is the trigger on the radar stick, not on the flight control stick. It has three stages called T0, T1 and TV, where T0 is the "not pressed" stage, T1 is "halfway" and TV is "pressed all the way in". Just follow grunf's advice, really.

Not sure what the scientific definition of "that fast" is, but I suspect that regardless of the value chosen, the answer is "yes". At sea level, you can turn something hilarious like close to 30 degrees per second for a short time if you pull 8 G, but you can only sustain like 10-11 degrees per second at max zone 3. (Numbers from the JA 37 flight manual, the AJ 37 is marginally worse.) The turn rate diagrams are missing from the AJ 37's flight manual but they are in the JA 37's corresponding part, and that part is the only part of the JA 37's flight manual that has been declassified. I'll see about getting it photographed and PDF-ified later this week.

I can understand not wanting to use the beta version, but refund because of a few weeks of delay in the release...? It's not like it's going to be in beta forever.

Apologies if I'm asking a really obvious question, but what unit is the ATC using? The Viggen wants millibars (or hectopascals, same thing), which is not the same as the US inches or the Russian millimeters of mercury.

Nope. You pick one A2G weapon system and then you can add Sidewinders and/or countermeasures to that as you please. There is one exception to this and that's the gun pods - you can combine those with either rb 05 or rb 75 (but nothing else). The devs have said they're considering relaxing this (realistic) restriction though.

It's on the weapon panel on the right side, to the rear of the weapon selector knob. Should be a switch there called FÄLLSÄTT, switching that from SERIE to IMPULS should work I think.

I'm unfortunately quite lost on this one! As far as I know though you're correct on the different pylon or mount or launcher or whatever you call it for the rb 74, so it does seem like a plausible explanation that they didn't want to spend too much money on adding those to the outer wing stations when the AJS 37 was hardly much of a fighter anyway, especially not when carrying heavy ordnance on the inner pylons.

VIND/RUTA/MÅL, longitude/latitude, B1-B8: input corners for recon "box" or expected target area (can be shown on the radar screen in master mode SPA). Switching to UT and pressing the waypoint buttons should show R<number> in the destination indicator. VIND/RUTA/MÅL, longitude/latitude, MÅL, number key: input expected or reported target position for recon waypoint <number>, aka. "red M" waypoints (destination indicator shows red M plus waypoint number). TAKT, 20ABCD, LS/SKU: tell the computer to pretend the aircraft has a fictive loadout on the pylons, there's a whole bunch of codes for this but unfortunately I don't think it's actually implemented in DCS. TAKT, 211, LS/SKU is not the code to disable lead calculation. It does enable fixed sight mode, and that is a fixed range sight that completely disables all ranging calculations. IIRC for rockets the slant range at which the sight is correct (ish) is 1400 meters. TAKT, 221, LS/SKU is what actually disables lead calculations (220 to enable).

Yurgon is right, E doesn't stand for Error, it stands for Egenfix ("fix on own position"). See https://forums.eagle.ru/showthread.php?p=3031870#post3031870

"Receivables" is a funny translation - it's technically correct, but it's the economical sense of the word ("accounts receivable"), which is not what it means here. A correct translation in this context is "prerequisites". "Plundring" literally means "sacking" or "pillaging", but in military context it refers to emptying a weapon of any unfired ammunition, so in this case, what they mean is removing any remaining weapons or weapon mounts from the aircraft pylons. Another technically correct translation that's incorrect in context. "Inkörning" refers to taxiing in from the runway to to the refueling station. 3. Verify the prerequisites above are met. Report to ATC or the officer on duty if quick refueling cannot be carried through. 3. Check communication with ground crew (as in, check that you can talk to them via the ground connection wire). Inform ground crew of any change in desired fuel amount. 1. Check that the warning lights BRÄ UPPF and TANKPUMP are lit. 2. Maintain (eye-)contact with ground crew chief. If necessary, call on ground crew's attention by carefully changing the engine RPM. The reason for that last one (RPM changes to attract ground crew attention) and the hand signs is that while quick refueling is normally done while in contact with the ground crew over the wired connection, you can do it without that as well and in that case you use the handsigns provided. This one baffles me, actually. I don't know what it's referring to. I suspect it's the warning lights, but something's "off" here. I'll see if I can investigate further.

That sounds like it should work, but I get the impression that the "row selector" isn't implemented and instead it'll try to choose one of three ships in a line randomly. In reality only two ships are needed and you can choose row 1, 2, or 3 (on the ground), but this does not seem to be the case in DCS - you need three and it'll choose randomly. I unfortunately cannot fly myself in the close future so I can't test it myself, but that's the impression I have from the experiences of others.

Isn't it kinda like a pendulum? That's what I'd expect to act like from a physical standpoint - it's a weight hung from a string, basically.

The stopwatch at engine start is just so you can measure those "within 5 seconds, check that..." points exactly rather than just by feel. "Flygtidsur" is for measuring the flight time for the sake of the logbook; you start it when you take off and stop it after you've landed. "Resp" is short for "respektive", so "kod 1 resp 2" means "code 1 and 2, respectively". 6. Coordinates for RUTA ("ruta" = box or rectangle, in this case it refers to boundaries used for the target area, defining where the ingress and egress points are etc) Coordinates for "red M" waypoint on target + desired number button (one press each on lon/lat respectively) (When in master mode SPA, you can record target positions in the computer with a procedure similar to making target fixes with the radar in master mode ANF, and these target points are shown in the destination indicator with a red M plus waypoint number, rather than the regular white M plus waypoint number.) 17. Shadowing data (Again, "shadowing" is the term used for target following in master mode SPA by periodically fixing its position with the radar) "Före uppdrag" is "before mission", just as you say. Beredskap is "readiness", more or less. Standby could work too, not sure what English-speaking air forces call it. The aircraft is parked, usually near the runway, prepared for the mission and with the pilot (or at least a pilot, not necessarily the same one as the one who will fly the mission in the end) seated in the cockpit with at least parts of the checklist done, but has not received a start order yet. There were several different levels of readiness, which we'll get to. Motorberedskap (literally "engine readiness") is the highest possible level of readiness. The aircraft is parked with the engine running in ground idle, canopy closed and all checklists up to and including "before taxi" done. The intent is that when the order to scramble is given, the pilot can just put the oxygen mask on, throttle up, roll out to the end of the runway and immediately take off. After 50 minutes in this state you connect the refueling equipment and run the pumps for about 1 minute to keep the tanks topped up. This can be repeated again after another 40 minutes. Högsta beredskap ("highest readiness") is not actually the highest readiness since the engine isn't running, but is otherwise similar. The "before engine start" checklist and any data input is done, and the pilot is seated in the aircraft with main power on and ground power connected. Batteriberedskap ("battery readiness") I'm a bit unclear on, but as far as I understand it, it's just highest readiness but without ground power connected. Före startorder just means "before start order", or "before order to take off". Utväxla kontakttecken = exchange "contact" handsigns (with the ground crew). Beredskapsändring = change of readiness level (from highest to engine readiness, or vice versa). Mek is short for "mechanic" but refers to the ground crew in general or more specifically the ground crew chief. Nödstart = "emergency takeoff". This is not a regular scramble, it's what happens if you're about to get bombed while the aircraft is in the process of being turned around, refueled or otherwise worked on by the ground crew. You abort the turn around procedure and just try to get in the air ASAP. I'll get back to the rest later this afternoon.

I don't think it's correct as it is right now either, but, well... looking at video clips of Gustav 52 the outer elevons do seem kinda twitchy on the ground, at times. Just not to this extent, not at all.

Correct. It can most definitely fly over land, that's one of the big selling points. The SFI has several illustrations and example mission profiles that show this and it is explicitly stated that it will work.

The self-destruct mechanism simply arms the warhead and pitches down with max possible control surface authority, so yes, the missile will slam into the ground/sea and trigger the impact fuze. SFI AJS 37 del 3, page 101 in the PDF. Actually using it to attack ground targets is definitely not intended, though.

The elevation knob is an analog potentiometer, so no, it shouldn't have "steps".

For whatever reason the AJS 37 SFI part 3 doesn't have a systems overview section for the rb 75 nor for the rb 05, like it has for rb 04E and rb 15F. The AJ 37 SFI had those sections, but the AJ 37 SFI we have access to (my PDF) is an old copy that predates the rb 75. We do have one 90's "patch" or update for the AJ 37 SFI, and from the index in that we can see that the rb 75 systems description section does exist, but none of its pages were updated in that particular patch so we don't have the content. I suspect that the reason the AJS 37 manual lacks these sections is that they were instead issued as separate publications. There should therefore be a classified "Beskrivning rb 75" somewhere in the national archives, but I haven't looked into it. Got too many outstanding declassification requests already...

The quick disconnect button should disable SPAK too, IIRC.

oh come on now, don't leave us hanging, tell us about the sequence of events that led to you making this discovery