lack of suitable evidence SPO-15 is way worst then it should be.

[LaCiKa]

First i want to point out that this is from Serbian pilots reports during interview after they have been shot at or shot down by USAF F-15C's mainly using 120B in Operation Allied Force in 1999.

During first day of operation 24.03.1999

Pilot Nebojsa Nikolic had proper RWR warning that he is being locked and missile warning. Survived 3 fireballs from missiles. 

Pilot Predrag Milutinovic had two times lock warnings and missile warning. Later was locked from firendly KUB which he also had lock warning but no missile launch indication and that way got shot down in final landing aproach.

26.03.

Pilots Slobodan Peric and Zoran Radosavljevic in their formation flight towards 2 pairs of F-15C's, only Zoran had SPO warning that they are being locked from their 2 o'clock, it is unknow if his radar was functional or not, but Slobodan's radar was malfunctioned and SPO also he is the one who survived to tell us that he only has seen 4 white missile trails and gave command to Zoran to defend also. 

07.04.

Pilot Boro Zoraja after take off had SPO go crazy in his headset, giving him missile warnings from 2 o'clock, he took off with radar enabled, managed to dodge first missiles, re committed to enemy, had one of targets locked at 30km after his SPO went crazy on him giving him missile warnings again but from 12 o'clock while hold target locked. This was in fact longest flight of Serbian AF during this operation and it lasted 40 minutes, his oponents were 3 F-15C.

08.04.

Pilot Dragan Milenkovic almost same story as of Boro's but had two times missile warnings and lock on from his nose while having radar in search mode.

So my personal option is that SPO-15 IRL is not this much bad as is now on MiG29A.

Here is video from their story's.

[NineLine]

Hi, thanks for this report. The unfortunate issue with a report like this is that there is really nothing to show what was going on here. You cannot program a complex system like this based on storytelling, while it might be helpful to back up documentation, on its own it is not really helpful with out all data points to program or change the SPO-15. I will pass this along to the devs, but I believe there is not enough here to support anything when the system programmed here was based on actual documentation that we have. Thanks. 

[NineLine]

I will also add that there is some suggestion that the Serbian MiGs were not pure 9.12s but hybrids with some aspects of the 9.13 in them. This means that we are also missing information on what these fighters had for systems and what might be different from ours. But as I stated, this is not enough info to report a bug, sorry. 

[LaCiKa]

2 hours ago, NineLine said:

I will also add that there is some suggestion that the Serbian MiGs were not pure 9.12s but hybrids with some aspects of the 9.13 in them. This means that we are also missing information on what these fighters had for systems and what might be different from ours. But as I stated, this is not enough info to report a bug, sorry. 

Yugoslavia purchased 14 MiG-29B (9.12B) and 2 (9.12UB) in 1987. , all of them have been even worst than 9.12A and had limitation for radar power and so on.

The 9.13 and all current variants that Serbian AF has now were not present in 1999. only 9.12B variants.

Anyway this is just story, not much to be seen but gives some reasons to give a deep dig for SPO-15 having warning and operating while having radar ON, hope this helps, thanks for replys.

[Muchocracker]

ED's claim in the manuals is that it specifically cannot blank out the radars HPRF waveform.



My question would be then is does the forward hemisphere not get disabled when the radar is in persuit (MPRF) mode. Somebody will need to find evidence to back that theory up. ED seems to have modelled it as just disable it with no nuance. Instead of disabling it depending on what waveform it's transmitting. Details matter.

Edited Saturday at 05:26 PM by Muchocracker

[Hodo]

11 hours ago, LaCiKa said:

Yugoslavia purchased 14 MiG-29B (9.12B) and 2 (9.12UB) in 1987. , all of them have been even worst than 9.12A and had limitation for radar power and so on.

The 9.13 and all current variants that Serbian AF has now were not present in 1999. only 9.12B variants.

Anyway this is just story, not much to be seen but gives some reasons to give a deep dig for SPO-15 having warning and operating while having radar ON, hope this helps, thanks for replys.

 

Worse, not worst.  "worst" is the past tense for the word worse.  

Not trying to be a prick just trying to help.

[LaCiKa]

19 hours ago, Muchocracker said:

ED's claim in the manuals is that it specifically cannot blank out the radars HPRF waveform.



My question would be then is does the forward hemisphere not get disabled when the radar is in persuit (MPRF) mode. Somebody will need to find evidence to back that theory up. ED seems to have modelled it as just disable it with no nuance. Instead of disabling it depending on what waveform it's transmitting. Details matter.

Yes that is also a reason to dig deep and see if SPO works with radar in ДОГОН mode (P).

Zoraja had his radar in ДОГОН while fighting which he stated.

[Thirsty]

What is interesting, I have been seeing a lot of talk, and also snippets of a bigger tech manual showcasing the timing that is specificly  between the radar and the SPO-15 so they will be in sync.
Especially to avoid interference of the radar and the SPO-15, and I have not been seeing any information so far that the radar completly cuts off the frontal lobe of the RWR. 

Only interference that could happen what is a maintenence issue, hence why the sync is needed.
Not a RWR design flaw, such as like this currently.
When installed into aircraft, SPO-15 is connected to the radar with a sync blanking line which makes SPO ignore own radar when antennas catch radars sidelobes or structural elements pass the signal.
What makes complete sense in the matter.

This cut off implementation makes the SPO-10 look superior since even that has sync lines.

[Кош]

Radar cuts off even itself, not just SPO. It cuts off itself. And then this signal is just copied to SPO too. Othervise radar would have shown only a white wall at all times instead of contacts and clutter. So yes when radar is emitting, SPO is "closed". Indeed. You just have to understand this "disabling" lasts for 3 microseconds every next 3 microsecons. This is HPRF duty cicle, MPRF is much much easier. 

Edited 2 hours ago by Кош