Boeing delivers latest F-15K jets to South Korea

[Break the Silence]

Ok, which version of F-15 are you talking about?

F-15 eagle
F-15 Strike eagle
or the F-15 silent eagle (in development stage)

Well I was talking abt the same mate! the silent Eagle.

 

[Skull and Bones]

Well I was talking abt the same mate! the silent Eagle.

F-15 strike eagle has got AN/APG-70 AESA radar, here's the A-A modes of that radar.

Range While Scan (RWS) modes: The RWS mode provides all-aspect (nose-on, tail-on) and all-altitude (look-up, look-down) target detection. This is the most commonly used mode upon nearing a hostile environment. It is a good balance of wide volume, and fairly rapid scan. This mode is used to resolve (detect) multiple targets separated by less than the antenna beam-width, at long range. There are three RWS modes, depending on what pulse repetition frequency (PRF) is used for emitting radar energy. In RWSH mode high PRF is used, while in RWSM mode medium PRF is used. High PRF's are better to detect distant contacts with high closure rates with the risk of low or no-closure contact not showing up on the radar screen. Medium PRF's are not very good on long ranges since they are subject to clutter when receiving returns from long ranges, but they are useful for detecting medium-range low closure targets or targets which are below the radar water line. A good mixture of high and medium PRF's is realized in RWSI mode (interlaved RWS) when the radar emits eneregy alternating between high and medium PRF's as it scans through bars.

Range Gated High (RGH) mode: This mode uses a single PRF somewhere between those used in RWSH and RWSM modes. Returns are processed electronically to find low and high closure targets. This mode may not as accurate as RWSI, but can find certain targets more quickly. Note that this mode can detect targets up to a 160 nm range, but it is sensitive to altitude, it can be confused by ground clutter below 4000 feet.


Velocity Search (VS) mode: This mode is specifically for detecting medium and high closure targets, with the cost of not detecting low and no-closure targets at all. This mode displays targets on the radar screen by azimuth and velocity instead of by azimuth and range. Note that sometimes a fast moving part of the target (a turbine blade for example) can make VS mode detect a speed much higher than the actual speed of the target itself. This phenomenon is called Jet Engine Modulation (JEM).


Vector (VCTR) mode: The scan rate for this mode is half as normal, about 35 degrees per second. This means that a full scan takes twice the time, but the computer uses this time to make extra work, thus enhancing the detection of objects which have a low radar cross section (RCS). Lower RCS contacts are picked up from greater distances by using VCTR mode. This mode uses high PRF's only.

Track While Scan (TWS) modes: Track-while-scan means that the radar does its normal right-to-left, left-to-right scanning while it is actively tracking a couple of targets. TWS uses either high or medium PRF's. In TWS mode the radar beam covers an area much smaller than the maximal 120 degrees, but this way the target updates are much quicker. In takes around 2 seconds for the radar to complete a full scan. The arc and number of bars covered by TWS scan can be set to different settings: 'wide' (60 degrees with 2 bars), 'medium' (30 degress with 4 bars) and 'narrow' (15 degrees with 6 bars).

Single Target Track (STT) mode: If the pilot marks a single target for tracking, then the radar enters STT mode and begins tracking that specific target. This tracking uses a 3 degree mini-raster of radar energy centered on the target with very quick scans thus rapid target updates. If STT mode is entered from any of RWSI, RWSH, RWSM, RGH, VS or VCTR modes, then all other contacts disappear from the screen. If STT mode is entered from TWS or from HDTWS mode, all other targets remain on the screen. In STT mode exact data of this single target are are immediately available, such as altitude, range, closure rate, heading, aspect angle and true airspeed.

Dual Target Track (DTT) mode: This is the same as STT mode, but it tracks two targets simultanously. This mode supports the AIM-120 AMRAAM only (it is able to receive guidance from the F-15E in its non-active phase of flight) and provides no support for the AIM-7 Sparrow. Not that practically no one uses DTT mode, since TWS mode is much better from practically every aspects.

Auto Acquisition modes: All the modes above are for detecting targets while target designation is done manually by the pilot. Sometimes the situation dictates otherwise. To aid the pilot in snap-locking a target, there are five modes of the AN/APG-70, all of which are designed to acquire and designate the target automatically, within the limits of the given mode. These modes are the following:

-- Super Search (SS) mode: SS mode projects a 20 degree circle onto the center of the HUD. The radar locks up the first target within 500 feet and 10 nm that enters this circle.

-- Boresight (BST) mode: BST mode projects a 4 degree circle onto the center of the HUD. The radar locks up the first target within 500 feet and 10 nm that enters this circle.

-- Long Range Boresight (LRBST) mode: LRBST mode projects a 4 degree circle onto the center of the HUD. The radar locks up the first target within 3000 feet and 40 nm that enters this circle.

-- Vertical Scan (VTS) mode: In VTS mode the radar beam covers a vertical area of about 7,5 degrees azimuth and of an elevation between 5 degrees and 55 degrees above the nose of the F-15E. The radar locks up the first target within 500 feet and 10 nm that enters this area. This mode is useful for targeting enemy aircraft in a turning fight.

-- Guns (GUNS) mode: Despite its name GUNS mode has nothing to do with the built-in gun of the F-15E. It is just a moderate range and wide scan auto ACQ mode of the radar. In GUNS mode the radar scans a 60 degree azimuth and a 20 degree elevation area (that is 30-30 degrees to the left and right and 10-10 degrees up and down). The radar locks up the first target within 3000 feet and 15 nm that enters this area.


Electronic Attack (EA) modes: In EA modes, the radar automatically reconfigures itself when inevitable signs of enemy jamming activity are detected. Facing enemy ECM activity, the radar tries to select special search and tracking modes which are the least sensitive to enemy jamming.

 

[Luftwaffe]

F-15K AND F-15SG are similar in configuration, the only difference and change is non AESA radar. So essentially both are same and Finest, you need to do a bit of research.

The APG-63(V)1 radar has a common digital processing back-end with the APG-63(V)3 AESA radar on board F-15SG, and can quickly be upgraded to an AESA radar by replacing the mechanically scanned array antenna with an AESA antenna.

 

[Luftwaffe]

Skull and Bones...F-15SE is going to end up like F-20 Tiger Shark, the original proposed modified design (tail similar to F-18) was rejected, an F-15 is being modified instead of developing from scratch modified and last year tested, since then we've not heard, even Saudis didn't give it any thoughts or they would have been the first customers this mean its going to be scrapped like F-16XL.

 

[500]

and can quickly be upgraded to an AESA radar by replacing the mechanically scanned array antenna with an AESA antenna.

No, AESA is completelly different thing.

 

[Luftwaffe]

@500......Read it and get it through your skull, "The APG-63(V)1 radar has a common digital processing back-end with the APG-63(V)3 AESA radar on board F-15SG, and can quickly be upgraded to an AESA radar by replacing the mechanically scanned array antenna with an AESA antenna."

 

[500]

@500......Read it and get it through your skull, "The APG-63(V)1 radar has a common digital processing back-end with the APG-63(V)3 AESA radar on board F-15SG, and can quickly be upgraded to an AESA radar by replacing the mechanically scanned array antenna with an AESA antenna."

Even if you repeat nonsense 1000 times it wont became true. Please read what is AESA for gods sake.

 

[Skull and Bones]

This might help

The primary advantage of a AESA over a PESA is that the different modules can operate on different frequencies. Unlike the PESA, where the signal was generated at single frequencies by a small number of transmitters, in the AESA each module broadcasts its own independent signal. This allows the AESA to produce numerous "sub-beams" and actively "paint" a much larger number of targets. Additionally, the solid-state transmitters are able to broadcast effectively at a much wider range of frequencies, giving AESAs the ability to change their operating frequency with every pulse sent out. AESAs can also produce beams that consist of many different frequencies at once, using post-processing of the combined signal from a number of TRMs to re-create a display as if there was a single powerful beam being sent.

 

[Kompromat]

F-15K lacks AESA. Finest F-15 is F-15SG.

I Thought it did .

The F-15K will use the newest combat radar, the Raytheon AN/APG-63(v)1, which provides substantially better reliability and maintainability than its predecessor, the APG-70. The AN/APG-63(v)1 incorporates all the APG-70's air-to-air and air-to-ground modes while adding new capabilities for ground moving target track, sea surface search/track, and enhanced high-resolution ground mapping.

Upgrades to that radar could include an active electronically scanned array, or AESA, system to reduce pilot workload and enhance radar performance. An AESA is faster, smaller, lighter and more reliable than a traditional mechanically scanned radar antenna. It also can rapidly change frequency to redirect its beam, increasing its detection capabilities as well as its ability to evade detection and countermeasures. The F-15 was the first operational fighter in the world to carry AESA.

Saudi F-15SA would be even more advanced than SG models , no doubt SG are the current mean machines !

 

[Markus]

The jet with the best track record in recent history.

 

[Kompromat]

Sir Will the US be willing to sell us these even "if" we have the money?

How does it compare to MKI's?

PAF never opted for F-15s even when we had funds and political will to do so back in the days , the issue with F-15 is nothing but its twin engines which doesn't match up with our "rapid reaction air defense" doctrine.

Even now PAF wont have twin engine fighter jets because of massive maintenance issues , Israelis are a prime example , they use their F-16s in peace time to train their pilots and save on airframe life and maintenance costs and hours on their F-15s for war time.

I have a feeling that if we would ever go for a twin Engine fighter jet , it would be no other than the Chengdu J-20 Firefang - other than that we will stick to our much reliable single engine fleet , F-16s and JF-17s can do 3 sorties per day which is unmatched by any other aircraft ! -- Fc-20 (J-10B) would be an addition to single engine strike force of PAF.

As for MKI - F-15 is far far superior - i will leave the rest to your imagination.

Regards:

 

[Luftwaffe]

Even if you repeat nonsense 1000 times it wont became true. Please read what is AESA for gods sake.

If you put your head in the right place, may you'll make sense out of it.... And behave your mouth.

"The APG-63(V)1 radar has a common digital processing back-end with the APG-63(V)3 AESA radar on board F-15SG, and can quickly be upgraded to an AESA radar by replacing the mechanically scanned array antenna with an AESA antenna."

 

[Luftwaffe]

And when people don't use their head, before you read this post refer to the post 27.
Next time when you are calling my post as nonsense read the post well.

In 2004 the Air Force changed its plans to upgrade 400 F-15s with the APG-63(V)1, deciding instead to install the APG-63(V)3 AESA antenna upgrade on the entire 224-aircraft F-15E fleet.

The AN/APG-63(V)3 AESA radar provides powerful, adaptable radar technology, proven performance, and tactical flexibility that F-15 pilots can rely on. The (V)3 is essentially an updated APG-79 front-end (antenna and power supply) and APG-63(V)1 hardware back-end. For the F-15E, the antenna size is increased to 0.9 m (36 in.) diam, and improved tile T/R modules with a greater mean time between overhaul are used.

The AN/APG-63(V)2 is a major radar upgrade for the U.S. Air Force F-15C aircraft. Retaining controls and displays nearly identical to those of its predecessor, the AN/APG-63(V)1, the new system adds an active electronically scanned array (AESA) radar to proven AN/APG-63(V)1 radar components.

 

[500]

Seems u did not follow my advice and did not bother read what is AESA. I'll tell you: regular radar consist of transmitter, reciever, amplifuer, antenna, antenna rotating mechanism and processing unit.

AESA radar has transmitting reciieving modules with amplifiers built in antenna. This requiers very complicated cooling and processing systems.

As u can see, in order to upgrade regular radar to AESA you should remove transmitter, reciever, amplifier and antenna, antenna rotating mechanism, replace it with AESA antenna , add cooling system and seriously upgrade processing system. And not simply replace antenna as u claimed.

 

[Luftwaffe]

Seems you didn't pay attention to details..You can't play i Win you Lose over here. Its not idf forum nor is it any Palestine, read what is written above since you're caught and don't want to acknowledge your failure don't drag it longer you'll get no further reply from me indefinitely.
Your post is going to be ignored talk to wall.
(This is what global security is saying and they are trusted reliable source, I only quote in my posts from and Global security and other well know authentic sites)

PS. I didn't bother to read your last post except for "Seems u"