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I dont know how old this article is, or what sim SU he is comparing to the real Flanker.
I thought the lack of RHAW in the forward sector in certain RADAR modes was interesting. My MiG-29 flight manual (all in Russian unfortunatly) shows this "zone switch" for the RADAR, just a little toggle switch like you get at Radio Shack! lol

<BLOCKQUOTE id=quote><font size=1 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote> Just In Case You Thought Su-27 Was Too Realistic...
By Matt "WAGS" Wagner

AOA Limiters and Stick Pushers
The Su-27 and MiG-29 are limited to 26 degrees AoA. There are two hydraulic pistons connected to the stick that force the stick forward at 26 degrees AoA. There is also a rate sensor that will actuate the limiter below 26 degrees if it senses a high enough rate in the increase of AoA. The limiter not only prevents the AoA from increasing, but actually reduces it about 5 degrees. On a positive note, with enough back stick pressure you can override the limiter and pull to whatever AoA the aircraft will give you--pilot beware.

Avionics
Using the Zone switch, the center of the scan pattern can be on the nose or 40 degrees left or right of the nose. It should not be slewable as it is the sim.

Total gimbal limits of the radar are 65 degrees in azimuth. The beam width is 3.5 degrees. I believe it's around 50 degrees in the sim.

The radar requires 3.7 to 4.6 seconds to completes a 4 bar scan depending upon the mode and the range of the acquisition symbol. Thus we need to adjust target update times. As it stands now, there is too high of an update rate while in search.

The SLOT BACK series of radar have five search modes: Head-On, Auto, Pursuit, Close Combat, and Track-While-Fly.

Head-On is for long range detection and uses High Pulse Repetition Frequency (HPRF) with FM-ranging. The scope range is 150 km. The scale of the scope is fixed in this and all other modes and cannot be changed by the pilot. Head-On is the preferred mode for targeting and sorting because of excessive false targets with Auto and Pursuit.

Auto is an interleaved HPRF/Medium Pulse Repetition Frequency (MPRF) mode for all aspect detection that alternates between HPRF and MPRF on successive bars of the scan. the scope range is set at 100 km.

Pursuit is an all MPRF mode primarily for the detection of low aspect targets. Scope range is set at 50 km.

Close Combat is used to lock on to targets in the visual arena at ranges out to 9 km. Close Combat uses a 2 bar vertical scan from -13 to +45 degrees in elevation and -/+ 3 degrees in azimuth. Lock on is not automatic as the pilot must still depress the lock on button.

Track-While-Fly is a pseudo track-while-scan mode that can be used in conjunction with the Head-On or Auto modes. Up to ten targets can be monitored in search, and the radar will automatically prioritize targets based on the Vc and range. The highest priority target will then be automatically tracked when reaching Rmax plus 10 percent for the selected missile. This mode has limited usefulness as it provides no increase in situational awareness and does not allow the pilot to control where the radar is pointed once the computer has made its determination as to the priority target.

Targets displayed on the HUD and HDD are displayed as three dots in a horizontal line.

There is a target designation rectangle that is slewable on the HDD display.

Search targets are always displayed relative to the center of the scan and not their position relative to the nose. For example, with the Zone switch in the left position, a target that is displayed to the far right of the scope is actually about 15 to 20 degrees left of the nose, not gimbaling right as we might expect.

Once commanded, a full system lock on may take up to ten seconds. As it is now, it only takes 1 to 2 secs.

The IRST has a very limited capability in the forward quarter and is unusable for BVR target detection and tracking.

Only the highest priority threat, as determined by the system, is displayed on the SPO-15 RWR gear.

The system has no capability to detect pulse doppler radars in track-while-scan mode.

To prevent false target indications, the forward RWR antennas are blocked during radar transmissions. This is very important to note: if the radar is in operation, the pilot will get NO RWR warning from a forward quarter emitter.

There are no RWR indicators on the HDD as there is in the sim. RWR gear cannot show range; it can only show azimuth, strength, type of signal, and if it's above or below you.

Radar range should be be roughly half at 1k ft as compared to 10k ft. This is due to the reflected side lobe energy being reflected back into the dish, thus driving up the gains.

Need to model director gun sight settling. As it is now, the DGS is a virtual "death dot"--this shouldn't be so.

Also, I've been watching quite a few marketing videos of Russian SAM systems. One thing I noticed off the bat was how much longer there was motor burn as compared to what we have in the sim. It appears that ED only modeled the boost phase of the motor burn and not the sustainer (additional 15 secs in some systems).

The source of this is mostly from a completely unclassified article written by a former MiG-29 pilot in aUS military journal that is not publicly available. The rest is from Russian arms manufacturer's marketing material and a working knowledge of radar theory and application. Considering the very close similarities between the SLOT BACK and SLOT BACK 2 (SB2 has better average-power-out and perhaps better processing capability), they both use the same SPO-15 RWR gear, and both use the same HUD symbology, the article is an excellent ref for the Su-27.

Wags
<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>

"We sleep safely in our beds because rough men stand ready in the night to visit violence on those who would harm us". George Orwell

Fighting For Justice With Brains Of Steel !
<img src="http://www.fas.org/man/dod-101/sys/ac/atengun2X.GIF" border=0>

_________________
The only time you have too much fuel is when you're on fire.

Since it's Wags, I would imagine he's talking about LO-MAC.

Flanker 2.5 days.

Matt started off as a Beta testor and was quite involved in the earlier ED sims. He had wrote some articles during the Flanker 1-2.5 time frame. This looks like it is from that time.

TH Su family Code was completely redone for LOMAC.

"The power to Destroy the planet, is insignifigant to the power of the Air Force----Mudd Vader

was very carefully watching some video of the SU-34/32FN Fullback today. It seems they are using the canards NOT as a pitch enhancement, but looks more like a variable LERX, constantly trimming to prevent pitchover rather than actually aiding the elevators. vedddy interesting.

"We sleep safely in our beds because rough men stand ready in the night to visit violence on those who would harm us". George Orwell

Fighting For Justice With Brains Of Steel !
<img src="http://www.fas.org/man/dod-101/sys/ac/atengun2X.GIF" border=0>

_________________
The only time you have too much fuel is when you're on fire.

is the su-47 and mig 1.42any good. cuz the people who make thes "say they can match the f-22"

"FORGET WHAT THEY SAY, WATCH WHAT THEY DO"

mr cool: Supposedly the Su-37 will outperform the F-22 but is still very impractical and extremely costly.

--Raven

"'When it comes to my turn, will you want me to go?' 'For democracy, any man would give his only begotten son.'"

plus the FSWs are being taken off and regular Flanker type wings will be installed whenever they resume testing.

"We sleep safely in our beds because rough men stand ready in the night to visit violence on those who would harm us". George Orwell

Fighting For Justice With Brains Of Steel !
<img src="http://www.fas.org/man/dod-101/sys/ac/atengun2X.GIF" border=0>

_________________
The only time you have too much fuel is when you're on fire.

Outperform the F-22 how exactly?

"It should come as a surprise only to the fools among the men of our generation that we liked war."

Major V. 'Popski' Poniakov, British LRG, WWII

Snipe: I should say outmanuever...with the more complex thrust vectoring system. The Russians dumped so much into their R&D that it is the most manuevarble fighter in the world (at least publically known.)

--Raven

"'When it comes to my turn, will you want me to go?' 'For democracy, any man would give his only begotten son.'"

Everything i've been hearing about the F-22 is that it manuevers like nothing else around.

Hell, they had to design a new 12G(or was it 11G?) G-suit to realize the full potential of the plane.

Since a Russian G suit only keeps the pilot awake to 9Gs, it would seem to me that the Raptor will hold a big practical manueverability edge, especially at high speeds. Then there's the P/W ratio of the Raptor, which is beyond ridiculous. And the internal weapons carriage and what that means WRT drag and acceleration, etc.

Don't really matter though, since the SU series has an RCS about the size of a barn, lol. In any case i am but a lowly ex grunt and have probably misread all the info anyway.


"It should come as a surprise only to the fools among the men of our generation that we liked war."

Major V. 'Popski' Poniakov, British LRG, WWII

The suit is sustainable to 12, and has been pushed to 15.

It doesnt use Air, its design is around Hydraulic Pressure.


6-9 Hurts.... Its not exactly something you say, Today im going to pull 9 g's the whole flight....

When you have stores, you wount be pulling the max g rateing of the airframe, only about an 1/8th of it...

"The power to Destroy the planet, is insignifigant to the power of the Air Force----Mudd Vader

S-37 has internal stores, but it's still a Flanker and it still would hav a large(but reduced) RCS and it's still as pretty as monkey doo doo lol. Wrong way wings dont work, they just found out what? 15 years later than we did!

"We sleep safely in our beds because rough men stand ready in the night to visit violence on those who would harm us". George Orwell

Fighting For Justice With Brains Of Steel !
<img src="http://www.fas.org/man/dod-101/sys/ac/atengun2X.GIF" border=0>

_________________
The only time you have too much fuel is when you're on fire.