February 26, 2021 - Air Marshal's Perspective

Categorization of fighter jets in generations is a classification system used around the world. The basic classification into five generations is widely accepted and recognized. Some accounts have subdivided the 4th generation into 4 and 4.5, or 4+ and 4++.

Second generation jet fighters (mid-1950s to early 1960s)

The second generation of fighter jets was a result of technological breakthroughs and experience gained during aerial warfare (mainly The Korean War of 1950-1953).

The main features included higher speed (sustained transonic and supersonic dash capabilities), rudimentary fire control radar, and use of the guided air-to-air missiles.

This generation’s ﬁghters also incorporated advances in engine design (afterburners) and aerodynamics (swept wings), which allowed them to reach and sustain supersonic speeds in level ﬂight.

The second generation ﬁghters saw the introduction of air-to-air radar, infrared and semi-active guided missiles, as well as radar warning receivers.

During this period, although air-to-air combat was still within visual range, radar-guided missiles started to extend the engagement ranges and accuracy.

The aircraft got divided according to the roles into Interceptors (e.g. MiG-21F, SU-9, F-106) and fighter-bombers (e.g. F-105, SU-7) providing air superiority and ground attack.

According to available sources, fighters in this generation include the following:-