foxbat155

ALL MIG-19 variants had the same fin, only difference is bit different pre-fin size and construction.

Well, in RL MBD-67 is possible to set interval time, and generally in most aircrafts is set on 0,4 sec, in module we don't have this possibility.

Few rectifications, MiG-19S wasn't simplified variant, this aircraft was second in a row in family (after MiG-19 "without letter"). MiG-19P is a 19S development with radar. Interceptor variants are heavier like frontline variants - 7730 kg (max. weight P) vs 7560 kg ( max. weight S). Gunsight on the S is not simplified over P's gunsight, because both are the same gunsight ASP-5N, with precisely the same funcionality. Differences are in cannons and flight parameters, but those are relatively small, that's why aircrafts have one aerodynamics manual and one pilot's manual.

Yes, fuel tank need to be dropped if you want use PPI's built into the pylon. But this is no senseless in general because, first: fuel from external tanks is used in first place and after that those are just balast, second: because of light construction they limiting aircraft's g-load and third: MiG-23 pilot's manual forbids any maneuvers with excess 3g and is forbid to change wing geometry when underbelly fuel tank is present ( because presence of fuel tank change heavily aircraft's longitudinal stability). Hope we will have this modelled in module. So during combat you need change wing position, so you will drop tank anyway, and then you can use flares/chaffs.

Screens looks great, congratulations Razbam, just one question..... why you double stacked launchers for R-3S ?.

Try my lights, russian text, works for me. light russian.zip

Guys, I know it's WIP, I just wanna be sure you don't will forget :thumbup:: All those lights have regulation (darker/brighter): ...and should look like here:

Some quick colorization fun with tanks groups:

Great Frederf, I wish that developers had yours attitude to details. Maybe you should put this on the bug tracker?. Only one thing: you overestimated difference between theoretical and usable amount of fuel. For fuselage tanks theoretical capacity is 2885 liters, usable 2805 liters, for PTB-490 usable 482 liters and for PTB-800 usable 795 liters. So from maximum fuel capacity (internal+2x490+1x800) fuel system lose 101 liters. Fuel consuption sequence graphic:

I forgot write about one thing more: PUS devices from external pylons are connected parallel with internals ones, so maybe that's why during check switching on circuits of pylons 1-2 is enough. I know this looks bit weird those lights always on, but.....well, when you flight with bombs only or with fuel tanks only, RKT PSN lights can be off, because you don't need "MSL,RGM,RKT LCH" switch on.:thumbup: I think, this depends from fuel consumption sequence. According manual: first 100 liters from tank 7, then all fuel from wing drop tanks, then 100 l from tank 7, then all from under fuselage drop tank, then 100 l again from tank 7 and so on.

Because this is procedure for connections check, UB-32 needs extra power for sequence switch box, external pylons are only for UB-16 and those pods don't need extra power. Yes "MSL,RGM,RKT LCH" switch is for power PUS device. ZERO PSN light is on when power swith is on and PUS is in "0" position. Presence of any kind of weapon under pylon have nothing to do here. Manual is stating: ZERO PSN light not shows UB pod presence, and don't shows S-5 presence inside pod. Light is always on, if PUS is in "0" position, whatever UB launcher is hang or not, rockets are in launcher or not. PUS device circuit, and bomb lock circuit are two separate circuits and no connections between them. Don't complicate simple things: ZERO PSN light shows ONLY PUS readiness. Yes, aircraft have special relay box for switching between internal pods and external, and seems that is imposible to shot salvo from all four pylons. First rockets from internals pylons and then from externals. So, if you have full S-5 load (96 rockets) and you will set weapon switch for position 16, sequence will look: 32 rockets from internal pylons, then 32 again from internal pylons and then 32 from external pylons. Yes, because PUS are only for S-5. Every group of tanks have own fuel flow pressure sensor, according manuals in case of fuel pressure drop, sensor is closing cockpit's lights circuits. Sensor measuring only fuel flow pressure, don't taking into account any others factors. So in my opinion is not important what is reason of fuel pressure drop ( fuel exhaustion, tanks drop ). No fuel flow - light are on.

Will fire 8 rockets, because max number of rockets in one sequence is 16, so if first salvo will 8, then only 8 was left before PUS reset to "0", if first salvo was 4 rockets, then 12 impulses in sequence left. It's seems that PUS is powered always, whatever is position of weapon panel switch or any ASP switch, because all power circuits are powered by one switch on the right cockpit's side ( one switch for PUS, AA missiles fire units, and S-24 fire unit). But PUS can be triggered only in one case: weapon selector on S-5 position and ASP switch on "Rockets launch". So seems that light "A" should be always on, whatever hanging under pylon, "off" only during fire sequence.Yes sequence will always paused somewhere in middle, because signal for reseting to "0" position is only from connector number 16. Light "B" is acting as "something is there", no connection between light "A" and "B", they working totally separatelly. It's hard to comment UPK-23-250, because RL aircraft never used them ( except some trials ). PUS is used only with UB-16/32 launchers, all others kinds of weapon have own fire circuits. In my opinion most systems in DCS MiG-21 works funny. Generally signalization "Empty tank" shouldy be on only when empty tank is present, and......"on" when full/or half full fuel tank was dropped. Why?, because lamp is triggered by pressure sensor in fuel pomp, fuel pressure dropped - light "on", fuel tank empty - no pressure, fuel tank dropped - no pressure. Page from manual:

Ok, I digged deeper in manuals about things we talking and seems that true is somewhere in the middle. PUS-36-86 is able sent 36 electric impulses but in MiG-21 only 16 are active (probably because for many years biggest pod was UB-16 with 16 rockets). Whole impulse sending sequence have 16 steps (time beetwen impulses 20-30 ms, impulse time 5-17 ms). PUS is triggered by weapon release button, on the beginning movable connector is on "0" position (light "0" position in cockpit is on). After pressing fire button, connector is start moving (light "0" position goes off) and closing one by one 16 independent electrical circuits (at end of every circuit is located rocket engine ignitor), when sequence end, movable connector is back to "0" position and light "0" position is on again. When pilot will choose firing 4 or 8 rockets, movable connector will stop after sending 4 or 8 impulses, light "0" will off during that time and will stay off until whole 16 impulses sequence will be done. So pilot have to press fire button 4 or 2 times to get lights "0" on again. UB-32 came to service in 1973, when already MiG-21Bis was in production, as a upgrade. What was typical for Soviets, they wanted get new capabilities as cheap and simple as possible. So aircraft's systems stayed as they was, just inside UB-32 was mounted switch box. When PUS finished sequence of 16 impulses , switch box was changing barrels set from 1-16 to 17-32 and after reseting to "0" position PUS was able to ignite next set of 16 rockets. So wasn't possible fire whole 32 rockets in one salvo.Light "0" was illuminated on the beginnig, after rocket number 16 and after fire all rockets. PUS is ready to work after swithing on switch "PUSK SS,RS,RNS" and light "0" will on, whatever pylons are empty or not, pod is loaded or not, because those lights signalizing only PUS sequence start position. 1,5 sec delay is only for safety purpose in order to avoid accidental fire. Why only in A-A mode?, probably 1,5 sec is too much time when you attacking ground target in dive. Now lights B, yep I forgot that they exist. Those light shows that bomb lock inside pylon is closed and secured. In order to hang something under the pylon lock need to be closed, so light on means that something is hanging there (altough is possible close lock without any load and then lights will on as well). Light are just on, when lock is closed, it's not possible show where are bombs or pods. No distinguishing what kind of weapon is hang, and no matter what position have weapon selector. When fuel tank full and present - one light (lock closed), when empty and present - two lights ( empty and lock closed), when dropped - no lights.

Well, no. Those lights are not for show pods presence, they showing readiness of rocket firing device ( PUS) . After fire sequence device is reseting itself to "0" position which is start position, but for reset is needed rocket presence in pod, no rockets left - no reset signal, lights are off. PUS device for UB-32 is modified, have 32 fire slots, those for UB-16 have 16 slots. Generally no weapon presence signalization on any MiG-21 variant, you have to remmember what is under your's wings. Pods don't will cease firing because, by pressing fire button you starting fire sequence, PUS is kind of watch like electro-mechanismus and already started fire sequence cannot be stopped. I'm not sure about drop tanks,but I think "empty" lights should go off when tanks are dropped.

Yes, I have the same problem like you, without detailed description is really hard understand differences between some gunsight's modes. But I hope soon will able get detailed manual for ASP-PFM-7 which was a variant of ASP-PFD for fighters-bombers, and maybe then everything will light up.

QFE setting device called ZDW-30 is integral part of ASP-PFD-21 set, and exist in every variant of MiG-21 equipped with this gunsight, and what interesting in earlier variants this thing was inside cockpit. Honestly I don't know how this working with gunsight because I don't have detailed technical description. From papers I have is clear that ZDW-30 is automaticaly connecting with gunsight ( together with altitude device DW-30 and AGD-1 pitch channel ) when pilot switching to "Ground" mode, whatever what kind of weapon is chosen. From MiG-21MF cockpit. Yep in "Ground" mode and "Manual" we should have possibility to set angles from 1,15 deg to 7deg down, and yes, according papers, reticle should start growing after cross max distance value ( setted by pilot ), but only in dive I think. Generally all pilot's manuals not recomending level bombing due low accuracy ( and that's why others aircrafts with this gunsight ( like Su-7, early Su-17 ) had separate aiming device for level bombing ). RSBN-5 had it's own QFE settings device.

Well, expected QFE in target area should be set before flight. Settings knob is hidden in front avionics bay, but we don't have modeled this.

Every Soviet IFF system, had tripled destruction system in order to avoid codes disclosure. Button for pilot, self destruction circuit switch on catapult's chair rails, and inertia self destruction switch when aircraft was hit by missile or hit ground. Sorry Dudikoff but Combat Tree is a bullshit story, blue side never was able get real IFF codes. Warsaw Pact was using different codes from those from Vietnam or Middle East ( all military aircrafts sold outside WP had.....civilian IFF ). Soviets had several sets of codes for peace time and war time and every aircraft had additional device called "product 81" with special war time codes, so penetration IFF system by Combat Tree is a myth.

:shocking::shocking::shocking::shocking::clap_2::clap_2:

EUP-53 turn indicator is calibrated for work with speed over 500 km/h, below that speed her indications are quite incorrect. 2 DOF gyroscope is main sensor for this instrument. How should look indications in different flight conditions:

Yep, constantly spinning.

You right Magot, RP-21 screen looks different but.... colors are the same. As far I know all early Soviet's scopes had dark yellow background.

Looks great, but....., range and azimuth scales are not displayed, those are engraved on the scope's glass. Screen should look like here: RP-21 screen photo, what is interesting this radar is further development on RP-1/2/5 family. One more thing: in MiG-19 was mounted ASP-5N gunsight, ASP-5ND is from early MiG-21, and from Su-7.

Modern or obsolete have nothing to do with documentation access. Sometimes even stuff from 60/70 is still confidential/secret. MiG-25 was built as part of big and complicated system, and module without this is like half product. Of course DCS MiG-25 is a big dream but realistically very unlikely.

Documentation is rather no problem: few months ago somebody sold on ebay for 700 euro whole technical description of MiG-25PD. Problem is different: we have small maps, no place for long range intercept flights with high supersonic speeds, MiG-25 was only small piece of big interception system "Vozdukh", "Vozdukh-1", "BAN-1" ( last one probably still in use ). Without those complicated command systems aircraft is just toy. Here can be serious problem with secrecy, documents etc. Even if, ED is able find somewhere those papers still exist problem with systems complexivity and apropriate implementation in game.