IR Countermeasures on PAA AH-1F
Pakistan Army Aviation AH-1 F/S are equipped with ALQ-144 (V), which is an infrared countermeasures (IRCM) set designed to protect helicopters against portable infrared-seeking missiles. The active part of the system contains an electrically heated cylindrical ceramic block. It radiates modulated IR energy 360 degrees around the aircraft. The system is mounted close to the engine exhaust because the radiant energy emitted by the ALQ-144(V) is similar to that of the engine, operators can modulate the outputs of the ALQ-144(V) to confuse a missile’s guidance system so the missile is steered away and/or triggered to detonate prematurely.
https://www.forecastinternational.com/archive/disp_old_pdf.cfm?ARC_ID=641
Enhanced Sensors and NV
Pakistan AH-1 F/S are equipped with C-NITE (FLIR) and Night vision.
https://www.defenseindustrydaily.com/maintaining-pakistans-cobra-attack-helicopters-05098/
Target Acquisition (SAM Threat):
Target acquisition can be much easier however if a ground observer is available. Located in a protected position where he can see the objective, an observer can mark it with smoke, laser designator or tracer fire, talk the pilot in to the target, or simply describe the target and its surroundings. These additional cues help the pilot find and positively identify the target more quickly in combat, shortening the exposure time of the aircraft as well as reducing the risk of targeted by enemy SAM.
The CAS doctrine requires:
1. An observer e.g. Air Liaison Officer ALO
2. Forward Air Controller FAC
3. Fire Support Officer FSO
View attachment 553052
In their absence, the Commander may fill this role while seated in Bell 412 Scout helicopter(as above, can be armed with FLIR sensors, combination used in WOT), while other AH-1's are providing supporting fire. When attacking the target, the AH-1 may employ hovering fire, running fire, or diving fire. The type of attack selected depends on the threat, type of target weather, terrain, the weapon to be fired, and the weapons effects required on the target. This means for CAS (Close Air Support), a complete intel report on enemy assets is there and can be updated mid combat also. CCA (close combat attack) can make AH-1 vulnerable to enemy SAM threat and that's where IRCM plays its part effectively.
Handling SAM Threat
Hovering fire is the most common method of engagement when firing TOW missiles, since cannon and rocket fire are less accurate. The stability of AH-1 increases with forward movement, however making running or diving fire more accurate for gun and rocket engagements because of the lessened effects of rotor down-wash, diving fire is the most accurate method of engagement for unguided ammunition. Discounted as a viable technique when the proliferation of the shoulder fired SAM’s worldwide made aircraft survivability above terrain flight altitudes questionable, diving fire is effective as the reduced size of the ordinance impact zone reduces the chance of ammunition landing outside the target area, minimizing the chance for unwanted collateral damage. The AH-1 starts in a terrain flight mission profile to provide protection from SAM and other air defense threats.
As the pilot approaches the target area, he initiates a maneuver called a bump, which is a slight climb to a higher altitude to bring the target in sight and begin the engagement. The bump altitude is dependent on the nature of the target and its surroundings but should establish a clear line of sight (LOS)/ Line of Fire (LOF) for a diving fire attack on the target.
AH-1 formations can also be broken down into 2 or 3 helicopter sections, which then enables more room to maneuver in the battle position while allowing mutually supporting positions when target gives an opportunity. SAM threats are the first ones to be taken out, then the AH-1 moves in for MBT and other armored targets. Baktar Shikan can attack and destroy ERA equipped enemy MBT's.
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