F-15 Tutorials, advice and links

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Redeye
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Re: F-15 Tutorials, advice and links

Post by Redeye » Thu Oct 16, 2014 2:21 pm

Good one Sabre!

Here is one of Ralfidudes many vids. This one shows a nice, low level search and destroy mission. A lot of things to pick up and learn from.

http://www.youtube.com/watch?v=Gf_7eSq3lak

Sabre
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Re: F-15 Tutorials, advice and links

Post by Sabre » Thu Oct 16, 2014 4:58 pm

Thanks for posting Redeye, great mission, a very enjoyable watch 8-)
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Vukac
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Re: F-15 Tutorials, advice and links

Post by Vukac » Thu Oct 16, 2014 5:45 pm

Nice Red
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Redeye
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Re: F-15 Tutorials, advice and links

Post by Redeye » Sat Nov 08, 2014 1:26 pm


Reiser
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Re: F-15 Tutorials, advice and links

Post by Reiser » Sun Nov 09, 2014 1:44 am

here is some information on the F-15C's TEWS system.

http://www.globalsecurity.org/military/ ... 98f15.html

Reiser
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F-15C and the TEWS TEWS tango...

Post by Reiser » Sun Nov 09, 2014 1:49 am

The F-15 was built with a magnificent RWR/ECM suite called "TEWS" (Tactical Electronic Warfare Suite). When used properly, TEWS can give you a significant situational awareness advantage over your enemy. Of course, that's assuming your Communistical enemies don't have an AWACS handy to give them a picture-perfect representation of the entire airspace via the datalink that ED bestowed upon them but withheld from us Eagle pilots.. (F-15s have a datalink of their own, of course. ED has just thus far refused to model it.)

Some data about the real life TEWS system if you want to read up
su-27rwr.jpg
Compared to the glorious Soviet RWR solution (pictured above), we have some obvious advantages. We are able to tell how many emitting threats are out there and we're able to get a discrete bearing and range on them. In Communism world, ownership of an RWR that can tell you more than relative altitude (the one thing TEWS does not tell you) and a bearing (within the forward hemisphere) and range for the highest priority general threat type (fighter, long range sam, etc.) is considered theft. In the free world, we find it useful to know exactly what is looking at us with their radar and from where.
f15rwr.jpg
Behold, the AN/ALR-56 RWR display of the F-15's TEWS! If you're like most DCS enthusiasts and started out with the A-10C, you'll feel right at home with this RWR. As you can see, the layout is such that the center cross of the screen represents our aircraft, while the icons that may light up at different positions around it represent the threat type, bearing, and signal strength (which can be used to roughly determine range based on the threat type). Keep in mind, like any RWR it is not gyro-stabilized (however, the radar is), so whatever your flight attitude, your RWR is displaying what it detects in front, back, left, and right of your aircraft as it flies at that moment, relative to your aircraft's AoA. it's pretty intuitive even as it gives us so much information.
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Reiser
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Re: F-15C and the TEWS TEWS tango...

Post by Reiser » Sun Nov 09, 2014 1:51 am

f15rwr-range.jpg
Here's an example using F-15s at different ranges. From closest to farthest, we have spikes at 10 NM (brg 090), 20 NM (brg 360), 60 NM (brg 270), and 100 NM (brg 180), and you can see they correspond with the distance the spike shows up from our aircraft. Again, these distances are based on signal strength, so they are only relative indicators of range. An F-14 or MiG-31 for example will show up closer than an F-15 or Su-27 because their radars are more powerful and their engagement ranges are correspondingly longer. The way they're displayed, it's not easy to be very precise about how far out the spike is showing up, but you can break it down in to "close, medium, and far" which will be adequate for both self-preservation and communication with teammates. The Russian RWR lets you be a little more precise with signal strength, but again it only tells you the signal strength for your primary emitting threat.
f15rwr-hsi.jpg
Speaking of teamwork, the RWR is an important tool in communicating your situation effectively to your wingman. Range is easy enough to communicate in terms of "close, medium, and far," but effectively telling your buddy what bearing you see an enemy at is even more important. Given enough separation from your wingman, you can even use the combination of two bearings to an emitter to triangulate and determine its exact position. The trick that I use is to reference the HSI with the spike on the RWR. The RWR has the green dots around the perimeter every 30 degrees, the HSI has hash marks around the perimeter every 45 degrees. Imagine placing the RWR's perimeter over the HSI as shown above, and you'll see that it's relatively easy to relate an emitter's orientation to the 30 degree dots to its position on the HSI to determine a very accurate bearing. This bearing is a very powerful piece of information to hand off to friendlies.
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Reiser
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Re: F-15C and the TEWS TEWS tango...

Post by Reiser » Sun Nov 09, 2014 1:56 am

ECM

Number 1 rule, do NOT turn on your ECM and "turn the music on" while casually flying around. ECM doesn't do what you think it does.

ECM on the F-15C blankets all directions with radar "noise". You can be seen from 200nm away now. What it DOES do is mask's your aircraft's range and scrambles any radar locked missiles who haven't been able thus far from pin-pointing your location. ECM is best used right before the enemy shoots. He has a lock, is getting into range, you "turn the music on" and by the time he's ready to fire, he now has a stream of radar interference (which WILL break lock) and he'll have to hunt for your blip again. Once found though, any missile fired will know your location too! ECM takes 15 seconds to turn on, when activated, you'll see your cross on the RWR have a cross X of it's own, it will blink as it's warming up. 15 seconds later, it will be steady on meaning your ECM is active.

Remember, don't fly around with ECM on. Don't fly around with your radar on (RWR). Only switch it on when threatened, or in the AO ready to do business.

Reiser
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Re: F-15C and the TEWS TEWS tango...

Post by Reiser » Sun Nov 09, 2014 2:13 am

F-15's TDC or Target Designation Computer.

The F-15C's target computer controls the radar scanner. It's capable of finding targets up to 160nm away. It can tell you the altitude of a target, the type of target, it's bearing, it's heading, and most importantly, IFF capabilities to tell you friend from foe...
2f15twsmu9.jpg
Here you can see 2 targets, both at Angel's 6 (6000ft). The one with the dot is a friendly, the one with a bar is not. Knowing this is vital however, some of this might have to come from AWACS. Sometimes when at close range (like we see above) we are within 10nm of the targets, they are about 2-3nm away, close enough for our own IFF to take over and identify.

The targeting computer can be slewed up and down in altitude (shown on the right between 10k and 4k), the longer the range, the more altitude we can scan. Once a target is identified, you can lock it by slewing the targeting pip over the blip and locking on. When this is done, you will enter STT or Single Target Tracking which will show information about the aircraft you're locked onto. Rarely should you use STT (Aim-7's need it) but rather, the F-15C's TDC has what's called TWS or Target While Scan mode.
f15tws.jpg
Above you can see we can target multiple blips on the screen at once. The first target we selected shows it's information below the grid, in this case a Su-27 (commie bastards!). Here's the most important part of all this. When tracking multiple targets and your within missile range (M0SEC means 0 seconds till missile range) and you fire your AMRAAM's, it will AUTOMATICALLY switch to the next target! You can track up to 4 targets in DCS world. The giant circle will expand and expand until you get the alert to SHOOT! The range till target is within missile range is on the right, the right side bar has an arrow that points to the top and shows the mile range of the target, it will drop into that box. Obviously, the closer that arrow is towards the bottom, the better chances are of a kill. If fired from within 10nm, the AMRAAM-120B/C will arm itself immediately and fly to the target ending in a fiery boom of satisfaction. The Aim-7's require flood mode and are fired from medium distance, they are semi-active (unlike the 120's) and require you to maintain continuous lock. Remember what I said about STT mode above? These guys require you to blanket a target, which requires STT mode and they will know it's coming.

Remember about RWR? Going into TWS mode will NOT alert the enemy fighter that a missile has launched, it won't even alert them that they are locked because it's a passive lock suitable for the AMRAAM 120's whom have a really decent radar package on-board anyway. They may or may not get a missile fired warning when you launch too because it takes the missile some time to become active with it's own radar before making the final push to the target. This is shown in your hud's bottom left corner as a countdown (T 10sec means 10 seconds until your missiles own radar engages).

Using TWS mode, while knowing your own RWR system will keep you informed of the battlefield in BVR fights. It's the main reason why the F-15C is the superiority fighter of the century.
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Reiser
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Re: F-15C and the TEWS TEWS tango...

Post by Reiser » Sun Nov 09, 2014 2:20 am

That's really it, learn the RWR, learn the TDC and learn the basics of missile avoidance and you'll dominate DCS.

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