Hughes AN/APG-65 radar series - Technical data and discussion

(WIP)

Specifications (AN/APG-65)
Antenna gimbal limit:

  • Azimuth: ±70°
  • Elevation: ±60°

Scale:

  • Range: 5/10/20/40/80/160 nm (9/19/37/74/150/300 km)
  • Azimuth: 20/45/90/140°

Elevation scan pattern: 1/2/4/6 bar
Beamwidth: 3.3°
Scan rate: 65°/s
Frequency: I band
Waveform: HPRF, MPRF, LPRF, Interleaved
A/A radar mode:

  • Range While Scan (SRC PD)
    - Range: ~80 nm (150 km)

    - Waveform: HPRF, MPRF, Interleaved

  • Velocity Search (SRC PDV HDN)
    - Range: ~100 nm (185 km)

    - Waveform: HPRF

  • Track While Scan (TWS PD)
    - Range: ~40 nm (74 km)

    - Max No. of target tracks: 10 (8 displayed)

    - Waveform: HPRF, MPRF, Interleaved

  • Single Target Track (TRK PD)
  • Boresight (ACM PD)
    - Range: 500 ft ~ 5 nm (0.15 ~ 9 km)

    - Scan area: 3.3° × 3.3°

  • Vertical Acquisition (ACM PD)
    - Range: 500 ft ~ 5 nm (0.15 ~ 9 km)

    - Scan area: ±5.3° in azimuth, -14° ~ +60° in elevation (10.6° × 74°)

(Raid Assessment and HUD Acquisition modes are excluded, because they are not necessary in game)

Variants

  • AN/APG-65: Base version. Installed on F/A-18A/B/C/D before Lot 16(1992).
  • AN/APG-65(V)2: Modified version for AV-8B Harrier II Plus. Has smaller antenna due to the radome sizes, which results in 10% lower performance.
  • AN/APG-65GY: Modified version for F-4F ICE and F-4E AUP.
  • AN/APG-73 RUG I: Phase I upgraded version, using modules from AN/APG-70 for 7~20% longer detection range and enhacned ECCM, etc. Installed on F/A-18C/D since 1992, and later retrofitted to earlier F/A-18C/D and some F/A-18A/B.
  • AN/APG-73 RUG II: Phase II upgraded version with improved air-to-ground capabilities. Installed on Lot 20 F/A-18C/D and F/A-18E/F.
  • AN/APG-79: AESA radar based on AN/APG-73. Installed on F/A-18E/F aircrafts with improved forward fuselage called ECP 6038, and EA-18G.
  • AN/APG-79(V)4: Scaled-down APG-79 for F/A-18C/D. The first airborne AESA fire control radar featuring gallium nitride technology.
  • MSD-2000: Improved APG-65, proposed for EFA programme.
  • Raytheon Advanced Combat Radar: Scaled-down APG-79 for F/A-18C/D. Initially offered for the U.S. Marine Corps’ F/A-18C/D radar upgrade, but eventually replaced with APG-79(V)4.

Sources

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  1. ADA142103 F/A-18 AN/APG-65 Radar Case Study Report by Paul F. Goree
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  1. An Illustrated Guide to Modern Fighter Combat (1987) by Mike Spick
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  1. McDonnell Douglas F/A-18 Hornet (Classic Warplanes) by Mike Spick
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  1. F-18 Hornet in detail & scale Part 1: Developmental & Early Production Aircraft (D&S Vol. 6) by Don Linn
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  1. WarbirdTech Series Volume 31: Boeing F/A-18 Hornet by Brad Elward
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  1. Aviation Classics Issue 23
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  1. Risk Management Lessons Learned from the APG-79 Radar Test Planning and Execution from VX-31
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  1. Chapter 1 Radar Fundamentals by 곽영길
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  1. Fighter Aircraft Avionics Part III by Solo Hermelin
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  1. ADP014165 Affordable Evolution: Engineering Change Proposal [ECP] 6038 F/A-18E/F Forward Fuselage Structural Certification by Mark K. Holly
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This is very good work. May I cite this forum post for a suggestion post on the F-4 ICE?

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Sure thing!

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Could you point out to me please where the APG-65 is said to be interleaved?

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Here it is.

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Currently as of 2.29.0.7
Beam width in elevation is wrong
Range scale is wrong
Azimuth scan zone is 140/60/20, should be 140/90/45
Bar Scan should be 1/2/4/6

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According to the Forecast International’s report on APG-73 and Asian Defence Journal:

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When comparing the signal processors, the APG-73 has more than eight times the throughput of the APG-65. This results in higher doppler resolution and better ECCM performance.

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