McDonnell Douglas F-4 Phantom II - Block details

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Model Block number Details
F-4A 1 J79-GE-2 or -2A engines
F-4A 2 First full production aircraft, change in the geometry of the air intakes (upper air intake lip extension eliminated), J79-GE-2 or -2A engines
F-4A 3 New cockpit and a new and larger nose, J79-GE-2 or -2A engines
F-4A 4 J79-GE-2 or -2A engines
F-4A 5 J79-GE-2 or -2A engines
F-4B 6 1st fully operational Block
F-4D 27 IR pod under the radome reinstalled to house antenna of the Itek ALR-25/26 radar warning system
F-4D 32/33 Pave Phantom AN/ARN-92 LORAN-D equipment (towel rail) installed to provide precise night time navigational capability
F-4E 31 Stall warning added
F-4E 36 to 45 Westinghouse AN/AVQ-23 Pave Spike laser target designator and range finder system added
F-4E 40 Battery-powered auxiliary power unit was added underneath the stabilizer
F-4E 41 Fuselage bladders replaced by self-sealing fuel tanks, reducing internal fuel from 1,364 to 1,225 US gallons
F-4E 42 AN/APR-36/37 radar and homing warning system fitted
F-4J 45/46 Visual Target Acquisition System (VTAS) helmet sight; retrofitted to earlier blocks
F-4E 48
  • Thicker lower skins for main wingbox
  • Northrop AN/ASX-1 TISEO target acquisition and tracking sensor added in an attachment mounted on the inner left wing leading edge
  • AN/AVQ-26 Pave Tack infra-red/laser target designator added
  • Midas 4 gun-modification to reduce engine flame-outs and to prevent loud whistle sound, that could be heard even before the aircraft itself could be heard; retrofitted to earlier blocks
F-4E 53
  • Mk III anti-skid brake system
  • KB-25/A gunsight camera
  • Digital Scan Converter Group multifunction display, allowing launch of the TV-guided AGM-65A Maverick missile; retrofitted from all Block 36 a/c onwards
  • reduced smoke J79-GE-17C or -17E with a low-smoke combustor
F-4E 54 High-performance antenna and coaxial cables added
F-4E 56 AN/APR-36/37 replaced by the Itek AN/ALR-46 radar warning receiver.

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