AN/ALQ-135

Last updated
AN/ALQ-135
Electronic countermeasure pod
StatusIn use
Manufacturing Info
Manufacturer Northrop Grumman
Introduced1972 (1972)
Usage
Used by Aircraft
Used by Military US Air Force
Variants
  • AN/ALQ-135D
  • AN/ALQ-135M

The AN/ALQ-135 is an electronic countermeasure (ECM) jamming system produced by Northrop Grumman for the Tactical Electronic Warfare Suite (TEWS) on F-15 Eagle and F-15E Strike Eagle aircraft. The system can jam and track multiple anti-aircraft missiles in addition to other threats. During the Gulf War, the AN/ALQ-135 logged more than 6,600 hours of combat, yet no aircraft were lost to a threat the system protects against. [1]

Contents

In accordance with the Joint Electronics Type Designation System (JETDS), the "AN/ALQ-135" designation represents the 135th design of an Army-Navy airborne electronic device for special countermeasures equipment. The JETDS system also now is used to name all Department of Defense electronic systems.

Development

Since the 1970s, the AN/ALQ-135 system has been a component of F-15 aircraft. The system has been continually upgraded. These upgrades include processor upgrades, durability upgrades, and weight reduction. Now the system is installed on more than 500 F-15s. The band 3 system was first installed in 1988. The band 1.5 system was first installed in F-15s in 2000. [1]

During the late 2010s, the ALQ-135 was to be replaced by the AN/ALQ-250 Eagle Passive/Active Warning and Sustainment System (EPAWSS). [2]

System Information

The modern system consists of five components of band 1.5 and band 3 equipment to cover the full spectrum of threats. The AN/ALQ-135(V) system consists of the B3 RF Amplifier, B3 Control/Oscillator, B1.5 RF Amplifier, B1.5 Control/Oscillator, and the LRU-14.

The band 1.5 and band 3 equipment share 70% of their hardware. This means that logistics and maintenance are more easily performed. The band 1.5 and band 3 systems can jam both high band and low band threats.

Size Specifications [1]
ComponentWeightVolumeDimensions
B3 RF Amplifier97 lbs (44 kg)2030 in3 (.033m3)11.8 X 8 X 21.5 in (30 X 20.3 X 54.6 cm)
B3 Control/Oscillator116 lbs (52.7 kg)2408 in3 (.039 m3)14 X 8 X 21.5 in (35.6 X 20.3 X 54.6 cm)
B1.5 RF Amplifier95 lbs (43.2 kg)2030 in3(.033 m3)11.8 X 8 X 21.5 in (30 X 20.3 X 54.6 cm)
B1.5 Control/Oscillator100 lbs (45.5 kg)2408 in3 (.039 m3)14 X 8 X 21.5 in (35.6 X 20.3 X 54.6 cm)
LRU-1410.5 lbs (4.8 kg)195 in3 (.0032 m3)3.5 X 8.25 X 6.75 in (8.9 X 21 X 17.1 cm)

Variants

AN/ALQ-135D

Used by F-15E Strike Eagle

AN/ALQ-135M

Used by F-15K Slam Eagle [3]

See also

References

  1. 1 2 3 "ALQ-135(V)" (PDF). Archived from the original (PDF) on January 4, 2011. Retrieved January 19, 2011.
  2. ↑ Withington, Dr Thomas (November 6, 2017), "Cloak of Invisibility", Armada International, retrieved November 15, 2024, The EPAWSS improvements for the F-15C/E fleet is expected to replace the existing... Northrop Grumman AN/ALQ-135(V) Radar Jammer... currently providing self defence for the F-15C/ E fleet, with the EPAWSS expected to be retrofitted on the aircraft in the coming five years
  3. ↑ Rockwell, Dr David L (August 14, 2018), "AN/ALQ-135(V) TEWS & AN/ALQ-239 DEWS & EPAWSS", Teal Group, retrieved November 15, 2024, Production of the AN/ALQ-135 has ended for US aircraft, but updated systems were in production for South Korea's F-15Ks through about 2013
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