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 Post subject: Info on MiG-29A RWR
PostPosted: Wed Oct 21, 2009 00:08 am 
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I found this data in my old archives today, figured I would post it...

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MiG-29A RWR Info From Translated Flight Manual
I am going to quote here the section on the RWR system from a translated MiG-29A flight manual. I dont have a way to scan the images of the RWR display, so if anyone has some, please post them as it will make this a lot easlier to visualize. You can find info on this book, titled "MiG-29 Flight Manual: Declassified" at http://www.schifferbooks.com <http://www.schifferbooks.com>

"RADAR ILLUMINATION WARNING SYSTEM

The radar illumination warning system (SPO) is used for warning the pilot of the aircraft illumination by the radars of the anitiaircraft missile or anti-aircraft artillery system or by the airborne radars of the enemy fighters.
The radar illumination warning system ensures:

*the detection and direction finding of the ground and airborne radars illuminating the aircraft;
*the approximate determination of the range and speed of the closure with the illuminating radar, the moment of the aircraft approach to the effective zones of the antiaircraft missile system or the enemy fighter missiles for the most dangerous attacking means;
*the determination of the most dangerous attacking means;
*the light and audio warning.

The detection range of the operating radars (airborne radars) is at least 120% of the range within which the weapon can be employed. The radar illumination warning station scanned area amounts to 360 [degrees] in azimuth and +30 [degrees] in elevation.

According to the operating principle, the radar illumination warning station is a passive fixtuned amplitude direction finder with the developed processing of the received signals, which makes it possible, in compliance with the set program, to determine the type and degree by the threat presented by the illuminating means.

The anttena system forms the lobe fanshaped (in the azimuth plane) and funnelshaped (in the vertical plane) directional patterns.
The direction to the illuminating radar is determined by reference to the angular position of the sector in which the radar signals have the maximum power. The type of the radar is identified by comparing the parameters of the signal received with the perameters set in the programmingdevice.

When the aircraft is illuminated by several radars, provision is made for the automatic selection and display of radar presenting the maximum threat to the aircraft, taking into account the radar operating mode. The "Nike Hercules"[/Patriot] antiaircraft antiaircraft missile system radar is considered to be the most threatening one and is selected as the main one in all the cases since the illumination of the aircraft by the signals of this radar mainly occurs when the attacking missile approached the aircraft, when the missile and aircraft prove to be within the main beam of this radar at a time. In absence of the illumination by the "Nike Hercules [/Patriot]" antiaircraft missile system radar, the most threatening radar is considered that operating in the tracking mode. If the radar operating modes are similar, the selection the effected depending on the priority of the antiaircraft missile systems employing teh illuminating radar. The data on the priority of the radar types are put into the program of the radar illumination warning station. The priority of the radar types decreases clockwise : P, Z, X, N, G, S.

All the information on the illuminating radars is presented by illumination of the various marks. The respective audio signal is applied to the pilot's earphones simultaneously with the light indication. The application of the marks is described below.

The "Serviceablity signal" is illuminated when the radar illuminationwarning station is serviceable, just after switching on the station.

The azimuth postion (bearing) of teh illuminating radars is periodically presented by illumination of the bearing green marks at the scanning rate of this radar. If the aircraft is illuminated in the direction between the adjacent sectors, two adjacent bearing marks will be simultaneously illuminated for one radar.

The radar types are indicated by illumination if the radar type green marks designating:

*P (aircraft F4, F104, ship antiaircraft misssile "Terrier");
*Z (sixbarreled selfpropelled anitaircraft gun mount "Vulcan" antiaircraft missile "Chaparral", ship antiaircraft missile "Seawolf");
*X (antiaircraft missile "Hawk", modified antiaircraft missile "Hawk");
*N (antiaircraft missiles "Nike Hercules", antiaircraft "Talos" ,"Patriot");
*F (aircraft F14, F15, F16, F18);
*S (aircraft F4, F104, F5, F111, "Mirage", "Lighting", "Jaguar", "Super Fledermaus", ship anti-aircraft missiles "Terrier" and "Talos").

When the aircraft is illuminated only by one radar or if this radar presents the maximum threat to the aircraft, the marks of the radar main type and bearing marks, with the angular values of this radar in degrees still displayed for 8 to 12 s after illumination, and, if the scanning rate of the most threateding illuminating radar is less than 8 s, the information on this radar will be continuously displayed m this indicator.

When the aircraft is illuminated in the front hemisphere within the sector from 50 to 80 degrees, the index 50 degrees appears from the left and right sides, indexes 50 and 90 degrees appear at a time within the sector from 80 to 90 degrees, and the rear sector index is displayed in the sector above 90 (up to 180 degrees). The dynamics of closure with the radar, the radar operating mode (the number of power gradations) and the effective zone relate only to the radar presenting the maximim threat.

The radar signal power is presented by alternate illumination of the power gradation yellow marks counterclockwise.

When the illuminating radar is changed over to the tracking mode, the LOCKON red mark will be displayed. When the "Nike Hercules" missile is launched at the aircraft, the LOCKON marks starts flickering at a frequency of 2 Hz/s.

CAUTION. 1. THE MODE OF OPERATION OF THE AIRBORNE QUAZICONTINUOUS ILLUMINATION RADARS OPERATING IN THE TRACKWHILEFLY MODE IS NOT DETERMINED.

WHEN THE AIRCRAFT IS ILLUMINATED BY THE CONTINUOUS AND QUAZICONTINUOUS ILLUMINATION RADARS (WEEK UP TO 5 GRADATIONS OF THE POWER ARE DISPLAYED), SECONDARY TYPE MARK 'X' FLICKERS. AT THE SMALLER RANGES (WHEN THE POWER EXEEDS 5 GRADATIONS) WHEN THE AIRCRAFT IS ILLUMINATED BY THE HAWK ANTIAIRCRAFT MISSILE RADAR, THE MARK 'X' IS CONTINUOUSLY DISPLAYED, AND WHEN THE AIRCRAFT IS ILLUMINATED BY THE AIRBORNE RADARS OF THE AIRCRAFT F14, F15, F16, AND F18, THIS MARK DISAPPEARS AND MARK TYPE 'F' IS DISPLAYED THEREON.

WHEN THE AIRCRAFT IS ILLUMINATED BY THE QUAZICONTINUOUS ILLUMINATION RADAR, THE NUMBER OF THE POWER GRADATIONS VARIES FRON THE FIFTH EIGHTH TO THE FIRST GRADATION FOR A SHORT TIME AT THE MOMENT MAR[K] TYPE 'F' APPEARS, WITH THE SUBSEQUENT INCREASE IN THE POWER GRADATIONS.

The following audio signals are applied simultaneously with the application of the light indication:

*when the radar operates in the scanning mode, the intermittent low pitched (having the frequency similar to the radar antenna scanning rate);
*when the radar operates in the tracking mode, the continuous highpitch signal;
when the "Nike Hercules[/Patriot]" missile is launched, the audio signal variable in pitch and volume.

The radar illumination warning station is controlled from the control panel:

*the cutin of the radar illumination warning station is effected with the aid of the RIWS switch;
*the application and control of the audio warning are effected with the aid of the VOLUME knob. When the sudio warning is switched off, the SOUND OFF placard is displayed on the indicator;
*the display of the information on the indicator in the full volume is effected by seting the SCAN OFF selector switch to the SCAN position. When the selector switch is placed in the OFF position, the indication on the aircraft illumination by the radars operating in the scanning and track while fly modes is cancelled on the indicator.

The radar illumination warning station is checked for serviceability with the aid of the builtin test system, by setting teh TEST springreturn switch to the AUTO position. At the moment the switch is depressed, the serviceablity mark disappears, whereas the other marks are displayed. On a lapse of 5 to 7 s, the serviceabilty mark should again appear thereon; if said mark does not appear, it means that the radar illuminaiton warning station is unserviceable.

After checking the station and placing the TEST switch to the neutral position, all the marks, except for the serviveablity mark should disappear.

Placing the TEST switch to the MANUAL position and then alternately depressing it, it is possible to check and evaluate the sensitivity of each sector seperately by comparing the number of power gradations displayed on the indicator with the number of gradations entered in the special table. The switch is met to teh MANUAL position when the ground checks are performed." (MiG29 Flight Manual: Declassified pgs. 108-109)

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Last edited by CAG Hotshot on Sat Oct 31, 2009 00:20 am, edited 1 time in total.

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 Post subject: Re: Info on MiG-19A RWR
PostPosted: Fri Oct 30, 2009 15:30 pm 
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i dunno about this im too lazy to read it anyway but my friend has worked with I-HAWK sam sites before and he says most soviet RWR fail to differentiate between Radar lock and radar scans (HAWK CWAR and HPIR). im not sure which aircraft he was talking about but im guessing it was either the MiG-21MF or the SU-22.

i remember him saying that they would use one radar to do a full 180' sweep every once in a while and if a contact was found they would then track it with another radar and jump to another radar for a lock and fire. He said most targets would decrease altitude during the detection phase and change their course. however some would contacts during the tracking phase would engaged in evasive maneuvers and possibly dropped chaff and flare even though no missile was fired. This shows the RWR worked but it possibly wasn't able to distinguish between firing and engaging modes. This is possibly why most I-HAWKs failed to lock-on to migs because they would immediately engage in evasive maneuvers during tracking. Oh and some Iraqi MiGs early in the war with Iran failed to recognize any I-HAWK threats which im guessing is due to lack of RWR.

if you are talking about MiG-19 RWR then i doubt their ability to differentiate between tracking and firing mode. hell i even doubt that MiG-19s were equipped with ECM. let alone detect a NIKE radar scan from 100km away.

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 Post subject: Re: Info on MiG-29A RWR
PostPosted: Sat Oct 31, 2009 00:22 am 
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Joined: Tue Mar 11, 2003 18:54 pm
Posts: 4437
Ummm.... MiG-29, not MiG-19...

Quote:
MiG-29A RWR Info From Translated Flight Manual
I am going to quote here the section on the RWR system from a translated MiG-29A flight manual. I dont have a way to scan the images of the RWR display, so if anyone has some, please post them as it will make this a lot easlier to visualize. You can find info on this book, titled "MiG-29 Flight Manual: Declassified"

_________________
Hotshot
"FAF Shape Meister"
FAF/FA-2 Design team
TSH Member/Developer
VNFAWING.com Forum Administrator

VNFAWING Forums
VNFAWING Website

FA Futures/FA-2 is Still Being Worked On and Will Be Released...


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