Huge boost to 'Atmanirbhar Bharat', 51% of the 123 LCA Tejas fighters to have desi Uttam radar

According to recent reports, at least 51% of the 123 LCA Tejas fighters that will be inducted into the Indian Air Force (IAF) are planned to have the desi Uttam AESA radar, replacing Israeli EL/M 2052 radars that the first batch of aircraft will be equipped with.

By Harkirpal Singh, Updated : Feb 22, 2021 15:23 IST
Huge boost to 'Atmanirbhar Bharat', 51% of the 123 LCA Tejas fighters to have desi Uttam radar
HAL Tejas

As per recent defense reports, In a major boost to indigenous defense technologies under the 'Atmanirbhar Bharat' initiative, at least 51% of the 123 LCA Tejas fighters that will be inducted into the Indian Air Force (IAF) will have the indigenous Uttam AESA radar, replacing Israeli radars that the first batch of aircraft will be equipped with.

By 2028, IAF will get 123 Tejas fighters: 40 in initial and final operational clearance (IOC and FOC) configurations and 83 Tejas Mark-1A, orders for which were placed in the first week of February. While the first 40 will have mechanical radars (all Israeli), 83 Mk-1A planes will have Active electronically scanned array (AESA) radars.

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“We will have the Uttam radar from the 21st Tejas Mk-1A to be produced. Uttam has performed better than anticipated in the trials so far. We’ve already signed an MoU with HAL,” DRDO chairman Sateesh Reddy told a leading news organization.

This means 63 of the 83 will be indigenous Uttam radars developed by LRDE (Electronics and Radar Development Establishment), a DRDO lab in Bengaluru. It was reported in 2019 that Uttam radars were likely to replace the AESA radars — the EL/M 2052 — from Israeli firm ELTA.

This is in line with the Centre’s push for increasing indigenous content in defense equipment under 'Make in India' and will enable HAL to increase the same on Tejas from the present 52%. R Madhavan, CMD, HAL, which is producing Tejas, said: “…That is what we are planning for.

CMD Madhavan also said, "Given the delivery timelines we’ve committed to, we will place orders for 20 Israeli radars and Uttam should be ready thereafter. We are targetting to increase indigenous content in Tejas from 62% to 65%, and this will help to achieve that."

Uttam is a state-of-the-art AESA radar that can track multiple targets and take hi-resolution pictures to aid in reconnaissance. Seshagiri P, project director, Uttam, said it’s being tested on two LCAs — LSP2 and LSP3 — and one executive jet. Together they’ve completed around 230 hours of flying, including 30 on LCAs.

“On the LCAs, testing is for air-to-air mode at present. The range of the radar should be adequate to launch a BVR (beyond visual range) missile; it’s specified to be so. But we’re getting a range that’s better than that. We are a couple of sorties away from starting a joint evaluation. After this, it will be ready for user evaluation,”  added Seshagiri.

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In addition to this, Seshagiri said. "On the executive jet, Uttam’s tested three basic modes — air-to-air, air-to-sea, and air-to-ground. “The same needs to be ported on LCA and checked for performance. There’s a fourth mode called navigation terrain avoidance, weather mode (rain-bearing clouds),”

According to LRDE, Uttam is a current-generation Radar with features that will enable aircraft to boast of the low probability of intercept and non co-operative target recognition.

“It provides better situational awareness of the battlefield scenario and is capable of tracking multiple targets with high accuracy suitable for firing missiles and interleaved air-to-air, air-to-ground, and air-to-sea modes for all-terrain solutions,” LRDE said. 

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