About basics of Command and Control Systems for controlling air situation, but specially about Vozdukh-1 system of C2BM.
Information came from different sources:
General Data of the AFLS
Meaning:
The automated guidance and control system AFLS served the fulfilment of the following major tasks:
1. Automated collection of the information about the air situation as well as its transmission both from down upward and message over the air situation and from above downward as information about the air situation
2. Automated guidance and reporting activity as well as Aufgabensellung
3. Automated fighter guidance
Existence:
The AFLS consisted of the components:
• ASPD - "PAUTINA" (spider net) air situation collection, treatment and transmission, as well as guidance and reporting activity as well as setting of tasks
• APN - fighter-guidance equiment ARL "LASUR" for the transmission of the control commands to the fighters
• AS - "KLYUTSCh" (key) message equipment
ASPD
The ASPD had capable multitasking display terminals of the type ZVESDA (star). Contrary to the display terminals of older Radio Stations, which had a swivelling deflection coil system, the deflection coils were immovable in the ASPD. The deflecting voltages were produced over relaxation oscillators, whereby the slope and concomitantly the maximum value of a serrated pulse depended on the position of the Drehmeldewiederholers and thus on the antenna position of the respective Radio Stations.
The clarification of the primary information took place via the refelktierte and strengthened signal of the Radar Station. This was the primary information. The reinforcement and treatment for representation took place with an at that time still pure electron tube technology with Germinium diodes in individual places. Additionally interrupted by means of INTERUPT the Primary-information-representation and represented occasional secondary information.
To the Secundary informtion, the return-control of the piece of information sent themselves at other objects belongs, the MARKER (comparably with a mouse-pointer), the Informtionen of other objects as well as pay-commands.
The MARKER was moved on the display terminal with a kind MOUSE, which was fastened to the end of a lever. By variable resistors coordinate tensions for X and Y were removed and from this the moving tension was formed. With manipulation of the MAUSTASTE, the two current X- and Y- tensions on two condensers stored with the help of a relay cascade were formed gradual reference stresses and evaluated with reaching the correct tension the operated relays as coordinate-code. Thus an analog-digital transformation took place into in each case 9 a digit coordinate for X and Y.
For those, mean 9 places are too inaccurate, the following computation:
Place Standard 600 km Standard 300 km Standard 150 km
= > 1200 km X/Y = > 600 km X/Y = > 300 km X/Y
1 600,00 km 300,00 km 150,00 km
2 300,00 km 150,00 km 75,00 km
3 150,00 km 75,00 km 37,50 km
4 75,00 km 37,50 km 18,75 km
5 37,50 km 18,75 km 9,38 km
6 18,75 km 9,38 km 4,69 km
7 9,38 km 4,69 km 2,34 km
8 4,69 km 2,34 km 1,17 km
9 2,34 km 1,17 km 0,59 km
ERROR 1,17 km 0,59 km 0,29 km
These information was processed into 32 digit information telegram. The transmission speed amounted to 50 Baud. Also commands from two numbers could be conveyed on a certain point.
The information telegram had the following form:
• Place 1-9 x-coordinate
• Place 10-18 Y-coordinate
• Place 19-21 information telegram characteristic
• 0 0 0 number command
• L of 0 0 opponents
• L L of 0 opponents with height
• 0 0 L of own ones
• 0 L L of own ones with height
• Place 22-28 height
• Place 29-32 synchronisation of the information telegram.
This information with a data transmitter were mailed and converted and represented at the receipt location. Exactly the same as the primary information also the Secundary information could be covered and entered with the MARKER. The entire treatment of information of the secondary information took place by means of a electrical-mechanical technology with cam shafts and relays as well as electron tubes.
The information transfer was made with the VP and VP-U by dedicated lines or KW radio. Always two connecting kinds were present.
This was the function with the VP, thus VP-02(2B), VP-03(8D) and VP-04 (15D). With the VP-03 and VP-04 there was in each case 1 EOP in the trailer and 1 EOP in the command post equipment as additional representation means EOP (electron-optical planchet). There on a special tube the secondary information was red-brownishly represented and brought by means of mirrors on a horizontal disk. After some time the information on the EOP had to be deleted by heating the tube. This EOP at the beginning of the 70s however no longer were already used. Instead in the command post equipment additionally display terminals were attached.
With the objects of the VP-U, thus VP-02U (2BU), VP-03U (8DU) and VP-04U (15DU) there were the following
Improvements:
• The improved display terminals STRELA (arrow) were introduced.
• Instead of the height-finder equipment existing in the VP-02 paddock equipments for 2 PRV were present in the VP-02U. On two jobs (per one in the trailer and one in the GS) PRV could be represented remote controlled and the information. These paddock equipments consisted partially of a then new technology - the ferrite transistor technology. (the ferrite transistor technology was unmiitelbar the technical conditions before the introduction of the first IC.) A ferrite ring can be magnetized on the right of or left around. Thus 0 and L write -, as well as a transistor for the reinforcement of the output signal and one 1-Bit memory element has reading and output winding in addition, from which one - exactly the same as from the many triggers in a today's IC - storage register to build can. This technology was strongly used both in the large computing technology and before all in the military equipment.
Up to smaller improvements the remainder of the objects agreed VP-U with the VP.
In the NVA were there two newer ones improvements developed:
1. Opponents could be explained only with point, line and circle. This did not hand FuTB-33 in some VP-02U and into all VP-03U for the distinction of the sources aus.(e.g.: 4 FuTK, LVD, FuTB-23)
2. Therefore the circle was divided in the representation into 4 different semi-circles: right, left, above, down. An automated breakdown bearing was not intended. Therefore the objects were re-tooled: Into the VP-02U the formation of an information telegram with a new characteristic became makes possible. In addition the not assigned characteristic 0 L 0 was used. On a verbal or with numeric code given command to the VP-02U points were covered in the center of the breakdown sector and dispatched as breakdown information. In the VP-03U at a display terminal the breakdown lines one represented, one evaluated mentally and one entered the goals resulting from the intersections. Afterwards an individual improved VP-02U was introduced. It served as paddock object for the ASURK and as VP-03KS was designated. In this object the electromechanical receivers had been replaced by ferrite transistor receivers. Since there was with the FRT of the NVA only a ASURK, gave it also only a VP-03KS. Whether this object with the VP-08M taught in Vladimir as ouple object to the ASURK agreed or whether the VP-08M was already improved, could not be determined. It gave then an improved VP that however to the NVA one did not introduce. It seems to have been completely developed on ferrite transistor technology, had however probably neither computers nor mass storages. At this generation the free characteristic L 0 L was used and it was possible for breakdown bearing thereby e.g. also. Possibly also a VP-15 belonged to, (why there should be otherwise a VP-15 "M"?). It does not seem to have been however probably also in the Soviet army all too far common. During the first training course of VP-02M in Vladimir, the technology of this system built in the cabinet was scrapped anyhow.
The objects VP-02U and VP-03U
To the existence of the objects belonged:
• 1 two-oh trailer with the equipment
• 1 aggregate GAD-40 with ZVK (central junction box) and ULU (unterbrechnungsloser load transducer)
• 1 Sil-157k with cab, therein message battery and groups of replacement buildings
• 1-Krass 214 loaded as drawing means for the object trailer and Gefechsstandapparatur and sets of cables
• ZVK and ULU were NVA developments. Originals were integrated the functions in the ESD-30 trailer.
In December 1976 the first VP-02M training course in Vladimir began. The VP-04M training took place then via Soviet training officers in the GDR. The technology was nearly completely developed on ferrite Trasistor technology up to the picture tubes and some few solderable tubes in building groups and with exception of the display terminals. Because of electronics the trailers had air conditioners. The entire treatment of the secondary information took place computer controlled. The data input took place at the fastened MOUSE by means of code disks. With the free characteristic L L L new possibilities of the information transmission before all of management informations as well as target allocations became possible. Important information such as goal new applications and management informations was transmitted 3fold and evaluated then according to the principle 2 from 3, i.e.. 2 of 3 information had to agree.
Only in the VP-01M and VP-02M radarmen were necessary. Starting from VP-04M the goals were only once seized and accompanied then far by the equipment after the information of the FuTK.
In the VP-01M, the same calculator was in the principle as in the WP-04M installed. The BUMERANG-1 had an increased RAM that served simultaneously as memory for the target information. The Bumerang-3 in the VP-04M, stored its targets (60 opponents, 40 own, 20 points of intercepting) in a magnet-drum-storage. The VP-02M was differently designed. It had a magnet-drum-storage in fact, but the arithmetical treatment was distributed on several cabinetes. Beside it, there was another coordinate-transformation-calculator, that those
received information converted.
In the VP-04M there was a new EOP. The representation was produced in a special tube and reflected on a perpendicular Planchet. Whereupon knew by means of a kind still-picture projector background like land and/or tactics maps and flight warning net to be represented. For treatment that a goal gave it a photo customer, whom one had to hold only the correct place on the Planchet, in order to work on information. There were likewise screens with air situation and combat-ready shank information.
Around co-operation with old objects to ensure one had remained however with slow 50 Baud information telegram.
To the VP-M belonged still the ECM pinpointing object VP-15M, which is separately described here. The computer equipment had m.E. the designation AVT??.
APN
The automated fighter-guidance equipment APN was inserted in the trailer 54. Technically it was based up Jobs with ever a display terminal for the RBS information and a display terminal for the elevator information. It was not also the direct coupling of a PRV possible, since the PRV were never sufficiently present however for all tasks, is for me a long-term realized coupling well-known. On the display terminals only in each case a magnifying glass-like cutout of the primary and the secondary information was represented and by the radarmen by means of a JOYSTICKS with a marker (pointer of mouse corresponds) covered and with it entered. For each opponent and each own one in each case a job was intended. A fighter controller pursued those/those on a STRELA interception display terminal. Beside it the hunter master computer stood. This was an electromechanical analogue computer. The guidance task was realized in form of a complicated resistance network with actuators, which operated again further of resistances, - i.e. the positions of a goal and fighter came as X and Y voltage level to the computer and this gave the necessary control commands for the fighter out (as well as control command for e.g. the radar).
In the system VP-U an object VP-11 consisted of two trailers 54. Both guidance possibilities were usable - on the other one however only 1 guidance possibility in a trailer 54. This hung also with the capacity of the equipment ARL together the primary information received the VP-11 from the VP-02U and the secondary information from the VP-03U.
With the system VP-M the designation was changed. A VP-11M consisted of only a trailer 54. But could be coupled both to the VP-02M and to the VP-04M up to 3 VP-11M.
ARL-1
The in such a way determined data for the own fighter were transmitted binarily to the fighter and indicated there with pointers of desired value. The pilot had to then bring only the pointers of actual value in concorance with the desired value and without a word over radio with switched off radar into a promising attack position was in such a way brought. There the radar was switched on and shot immediately. The transmission took place via a duo R-824LPM, whereby one transmitted the information as LPM switched and second served the voice transmission for the guidance control officer as reserve for the information and as LP switched.
Appreciation
With introduction of the MiG-23 in the middle of the 70's was improved opposite the MiG-21 also the armament. After it was only possible before to intercept targets from the rear it gave with the MiG-23 also rockets for reciprocal heading interception. If one considers oneself the fact that during reciprocal heading interception with a goal and interceptor speeds of about 2000 km/h an approach velocity of approximately 4000 arises km/h becomes clear that with the Fleugzeugfuehrer much time does not remain for recognizing the goal and for shooting. About with 100 km it must the goal recognize and between 40 and 100 km distance the rocket release.
Since the enemy fighters for tactical reasons does not fly usually in the same height as the target recognizing of the target is additionally difficult. Therefore the FuMVisier of the MiG 23 was pre-adjusted. The taxable value for this advance-direction the MiG 23 from the system APN. defiance obtained to that us today and before 30 years appearing vorsinntflutlich technology this accurately already functioned. The fighter guidance with the APN worked also in the DHS well. Some F-4r pilot in the Oderbucht was frightened by the first word of our Fleugzeugfuehrers by the JG-9 over radio after the DHS start: "target recognized!" and width then rather searched.
Something similar applies to the ASPD. Despite age-old technology it worked partly quite well. It could have still better worked, if not in different levels people had been, how a political deputy in the FuTK-333, which explained before met crew: "I never sit down as an on-duty company commander into the VP-02M!"
Automated objects and its radar numbers
4101 - 4199
VP VP-02 2B Radio-Technical Company
4201 - 4299 VP-U VP-02U 2B-U Radio-Technical Company
4301 - 43?? VP-U VP-03U 8D-U Radio-Technical Batallion
43?? - 43?? VP-U? VP-03KS 8D-KS Coupling Asurk-1m
43?? - 4399 VP-U 15D-U Air Defense Division and ZGS
4401 - 4499 VP-U VP-11 6B-U Fighter guidance
4501 - 4599 VP-M VP-1M Radio-Technical Company (Orientation low-flat steel bar-goal)
4601 - 4699 VP-M VP-02M Radio-Technical Company (in the Soviet army RTB)
4701 - 4749 VP-M VP-04M Radio-Technical Batallion (in of the Soviet army RTBr o. JFD)
VP-M VP-11M Fighter guidance (unchanged 6BU)
4751 - 4799 PORI RTB b. SAM-R/SAM-Br with VECTOR
4801 - 48?? VP-M VS-11M Air Defense Division
4901 - 49?? VP-M VP-15M ECM pinpointing object (attached to VP-04M)
Not in the NVA VP-03M JG
VP-05M Air army
VP-07M Air-defense army
VP-08M RTB with SAMR-R with ASURK
VP-12M Coupling of FuM airplanes
VP-16M Photo laboratory for background slides EOP
Nr. - Area
FM – Stationstyp Remarks
3201 - 3299 P-15
3501 - 3599 P-15M2
4101 - 4199 Objekt 2 B (Vozdukh-1)
4201 - 4299 Objekt 2 BU (Vozdukh-1P)
4301 - 4399 Objekt 8 DU, 15 DU (Vozdukh-1P) Batallions- and AIZ-VP
4401 - 4499 Objekt 6 BU (Vozdukh-1P – Trailer 54) Fighter-guidance equipment
4501 - 4599 Objekt 01 M (Vozdukh-1M)
4601 - 4699 Objekt 02 M (Vozdukh-1M)
4701 - 4749 Objekt 04 M (Vozdukh-1M) Batallions- and AIZ-VP
4751 - 4799 Objekt PORI RTB SAM-R/SAM-Br with VEKTOR
4801 - 48?? Objekt VS-11M (Vozdukh-1M) AIZ LVD
4901 - 4999 Objekt 15 M (Vozdukh-1M) Object to the ECM-bearing (connected at 04 M)
5301 - 5399 P-37
5901 - 5999 Kabina K-66
6101 - 6199 PRV-9
6201 - 6299 PRV-16
6501 - 6599 PRV-11
6601 - 6699 PRV-11
6701 - 6799 PRV-13
6801 - 6899 PRV-17
7001 - 7999 Mikro-36 / SGV-71 Training-equipment for FO / sturgeon-generator
8301 - 8399 P-12NP
8401 - 8499 P-18
8701 - 8799 P-14
8801 - 8899 5N84A
9101 - 9199 ST-68U