1. In this training lesson you'll learn how to use the AN/APG-63 pulse doppler radar to acquire, lock and engage airborne targets. The APG-63 combines long-range acquisition and attack capabilities with a set of automatic lock features that provide instant information and computations needed during air-to-air combat.
At any time in this mission you can press the PAUSE key to pause the mission.
2. The APG-63 has two long range search modes: Range While Search (RWS. and Track While Scan (TWS. . Once a target is locked (or bugged. , it can be either a Single Target Track (STT. or a Designated Track While Scan (DTWS. . The radar-derived data is then displayed on the Heads Up Display (HUD. or the Vertical Situation Display, or VSD. Using this information you can engage targets with the AIM-7M "Sparrow" medium range semi-active radar guided missile or the AIM-120B or C Advanced Medium Range Air to Air (AMRAAM. .
3. First, we need to turn on the radar by pressing the I key and then enter RWS mode by pressing the 2 key. This will change the data and HUD and VSD to support Beyond Visual Range , or BVR, mode.
Now we'll call up an AIM-7 missile by pressing the D key until 7M is indicated as ready (RDY. on the Programmable Armament Control Set (PACS. and boxed. You will also notice 7M indicated here on the HUD.
4. On the VSD we can see the sweeping radar antenna azimuth caret and scale with limit circles indicating 60 degrees off the centerline or 120 degrees for a full sweep. We can change the azimuth scan by pressing the Right CTRL and + or - keys together and switch between a 30 and 60 degrees of antenna azimuth sweep. 60 degrees provides a winder search area, but 30 degrees will provide us faster updates.
5. On the left side of the VSD is the antenna elevation caret and scale. The circles beside the elevation scale represent the radar beam coverage and displays the maximum and minimum altitudes being scanned in thousands of feet. The elevation scan volume can be raised or lowered by pressing the Right Shift and ; or . keys together.
If a target is significantly above you or below you, you will need to adjust the scan elevation to detect it.
The caret along the scale indicates the four bar scan in the radar's raster search pattern.
6. The number in the upper right corner of the VSD is the selected display range and it can be cycled by pressing the + and - keys. The VSD has a minimum display range of 10 nautical miles and a maximum display range of 160 nautical miles.
7. The aircraft's True Air Speed (TAS. is displayed in the bottom right hand corner and the aircraft's Ground Speed (GS. is displayed in the bottom left corner.
8. Above the ground speed indication is the current radar Pulse Repetition Frequency, or PRF. This can be cycled between HI, MED and Interleaved by pressing the Right Shift and I keys together. HI is the most long ranged and is best suited for high closure targets. MED has lesser range but is best suited for low closure rate targets. Interleaved alternates the PRF between HI and MED. To the left of the PRF indication is the current bar in the four bar raster scan pattern.
9. In the center of the VSD is an artificial horizon line and the slewable Target Designation Cursor, or TDC. You can slew the TDC by pressing the , . / and ; keys. By slewing the TDC to either the very top or the bottom of the VSD you can also change VSD display range. Moving the TDC up and down on the VSD will also change the elevation scale volume because the radar beam acts as a cone, and the further out it goes, the greater it expands. The TDC gives you a good idea of the volume of space that the radar is covering.
10. A solid horizontal bar on the VSD indicates a hostile radar contact. A small circle symbol indicates a friendly contact. Older "hits" will gradually fade away.
11. I'll slew the TDC over the hostile target and press the ENTER key to lock it up in Single Target Track, or STT, mode. To unlock the target, you can press the BACKSPACE key.
12. We're now in Pre-Launch mode and all the radar energy is being focused on that one locked target. This target is our Primary Designated Target, or PDT, and the radar is providing us information on its airspeed, aspect angle, and heading displayed in the upper left corner of the VSD. The PDT appears as a star with a line from it indicating its flight vector.
13. The PDT's altitude is next to the arrow on the elevation scale and our closure rate is tracking down the Dynamic Launch Zone (DLZ. scale caret. For the best chance of success, we want the DLZ caret to be inside the bracket no escape zone.
Below the bottom of the DLZ is the target's range. To the left of that is the heading for target intercept, and the left of that is estimated missile impact time.
The Non-Cooperative Target Recognition (NCTR. interrogation is calling the target an IL-76 transport.
14-21. In the video and on the web-site
Негізгі бет Ойындар 13. F-15C: AN/APG-63 Pulse Doppler Radar
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