Infomanya-English

On 26 May 1997, Pakistan’s airspace was unexpectedly penetrated by India’s high-speed reconnaissance aircraft, the MiG‑25 Foxbat, capable of flying near Mach 3 at altitudes of 70,000 feet. Radars initially tracked only faint signals, and the sonic boom over Sargodha triggered the nation’s air defense alert. This article provides a detailed analysis of the incident, exploring the aircraft’s capabilities, the radar response, and the strategic implications of this hidden air clash.

Pakistan immediately scrambled F‑7P and Mirage III jets, but the MiG‑25 was flying at such high altitude that no Pakistani interceptor could reach it. Within minutes, it completed its survey of Pakistani airspace and returned toward India, leaving behind only the booming sound.

Despite Advanced Radars, Pakistan Helpless

At the time, Pakistan had its most advanced ground-based radars, AWACS, and surveillance systems, which could detect any aircraft immediately under normal circumstances. However, the MiG‑25’s extremely high altitude, near Mach 3 speed, and small radar cross-section rendered these advanced systems powerless. Radar operators tried to track it in every possible way, but due to the aircraft’s height and speed, its track remained faint and unstable, as if a shadow disappeared momentarily.

MiG‑25 Capabilities and Speed

The MiG‑25, known by NATO as "Foxbat" was developed by the Soviet Union in the late 1960s specifically for high-speed, high-altitude reconnaissance and interceptor

missions. Its length was approximately 23.8 meters, wingspan 14 meters, and empty weight around 20,300 kilograms, while maximum takeoff weight reached 36,720 kilograms. Its two powerful Tumansky R-15B-300 engines provided speeds from Mach 2.8 up to Mach 3, ranking it among the fastest aircraft in the world at the time.

The aircraft could fly at altitudes of up to approximately 20,700 meters (68,000 feet), far beyond the reach of conventional fighter jets and surface-to-air missiles. The nose cone and leading edges of the wings were made of special metal to withstand the extreme heat generated at such speeds. It carried roughly 12,000 liters of fuel, sufficient for long-range missions, with a mission range of about 1,500 to 1,800 kilometers.

The MiG‑25’s radar system allowed it to detect enemy aircraft and targets, but its high altitude, speed, and limited radar cross-section made it extremely difficult for conventional ground-based radars to track it completely. Additionally, it could carry R-40 long-range missiles, though reconnaissance missions were often conducted unarmed.

All these features made the MiG‑25 nearly untrackable during the 26 May 1997 incident, as Pakistani scramble jets and radar systems could not match its altitude or Mach 3 speed.

India’s MiG‑25: Numbers, Squadrons, and Fate

India had purchased approximately 10 MiG‑25 aircraft — including 8 single-seat reconnaissance versions (MiG‑25R) and 2 twin-seat

training/reconnaissance versions (MiG‑25U). These aircraft were first inducted into the Indian Air Force on 17 August 1981, when Squadron No. 102 was established. Later, this unit was disbanded, and the responsibility of the MiG‑25s was handed over to Squadron 35.

Over time, maintenance issues, spare parts supply, and new reconnaissance methods (such as satellites and unmanned drones) reduced the operational efficiency of the MiG‑25. Consequently, on 1 May 2006, the Indian Air Force officially retired the remaining MiG‑25s — meaning they were no longer in active service. Some crashes had also occurred — for example, one aircraft was lost during an early test flight, and in 1985 a MiG‑25 crashed during approach, killing the pilot.

Pakistan’s Response and Future Preparedness

Following the extraordinary intrusion of the MiG‑25, Pakistan immediately reviewed its air surveillance and defense systems. Improvements were made in radar coverage, rapid-response squadrons were deployed in border areas, and plans for new air defense systems were accelerated. Pakistan began integrating aircraft and technology capable of countering higher-altitude and faster enemy aircraft. During this period, F‑16 upgrades, the strengthening of the Mirage program, and later projects like JF‑17 gained momentum. This incident proved to be a turning point, after which Pakistan focused on making its air surveillance, ground radar, and aerial response systems stronger, more integrated, and modernized.