Indra has won a contract to supply the Royal Air Force with an advanced long-range air defence deployable radar.

The Indra LTR25 L-band radar, say the firm, offers long-range detection capabilities, comparable to those of larger fixed radars, but with the added advantage of being able to operate very quickly and be transported in small aircraft, such as the C-130.

It is designed to facilitate deployments outside national territory, to reinforce the surveillance of a specific area on a one-off basis or to be available as backup in the event that one of the fixed radars is attacked or damaged.

Indra say it is a leading company in the development of radars and one of the main suppliers of this type of solutions for NATO.

According to the firm, its systems also cover surveillance of the whole south-western flank of Europe.

“Indra has delivered over 50 radars in total to countries from five continents, so the capabilities of its teams have been widely demonstrated in all types of scenarios and environments. The company also has experience in the supply of integrated air defense systems for a number of countries.”

Indra will deliver the system later this year.

George Allison
George has a degree in Cyber Security from Glasgow Caledonian University and has a keen interest in naval and cyber security matters and has appeared on national radio and television to discuss current events. George is on Twitter at @geoallison

15 COMMENTS

  1. Noticed a new refresh of the site George? Grav’s and the removal of the + – system.

    Agree actually. People will appreciate and notice a well informed post regardless of how many times it has been up voted.

    And the down votes, many quite pointless, just allow trolls to play.

    • Ha! read this and then went looking for the upvote button… It’s time to leave work and head to the beer garden methinks…

    • Yeah, just a new plugin to enhance the comments section. I decided the votes were more trouble than they were worth (did have to laugh though, often noticed posters calling others ‘snowflakes’ while at the same time getting upset over downvotes). We’re looking to potentially let users sign up and create accounts but need to look at the pro’s and con’s of that and whether it’s worth it. Thought Grav’s are a nice step in that direction.

      • Thank you

        I see another of my posts above, with basic speculation as to the user, and no offence to anyone, is awaiting moderation. Deary me.

    • Since the TPS 77 is effectively becoming the fleet standard for the UK, it is surprising that they are considering changing to a Spanish supplier. Some backroom backscratching over Gib and Brexit ??

  2. I’ve always wondered how much cheaper it is to develop radar to detect stealth rather than the stealth itself.
    We’ve all heard about how the Stealth aircraft cost tens of billions (The F-117 Nighthawk is a favourite of mine) but know almost nothing about the cost of the radars built to counter those advances.
    I assume it’s much cheaper to detect than it is to hide something?

    I also like how they talk about being able to detect cricket balls going at a few thousand miles an hour but that just me.

    • There are other solutions to detecting stealth. Inverted Aeromag survey technology for example. My assuption is uk is buying for sensor suite… A little but of stealth but not for stealth per se.

    • In some respects developing radar that can detect stealth aircraft can be made for a relatively small outlay. The problem is designing a radar that can detect a stealth aircraft that you can not only get missile lock on, but be able to track it as well.
      Aircraft like the F35 may be detectable to longwave radar operating from 800MHz to 3Ghz through the resonance affect, however this only gives you a guesstimate that there’s something out there, it may give you a rough bearing and distance, but that’s totally dependent on how much signal/energy is being reflected. It will also be highly dependent on the angle of the aircraft’s airframe relative to the transmitter. For a F35, the frontal aspect will give a very small signal return. This can obviously be made worse for the radar by using active jamming techniques.
      To gain a suitable lock on the aircraft you require a shorter wavelength. Radars from 6GHz up to 50GHz will give the target resolution to enable a missile lock-on, especially if you’re using semi-active homing. This is also true if the missiles use active radar. The higher the frequency will give better target definition and thereby make the missile more accurate. Also because of the limited size of the missile higher frequency radars are used due to the antennas limited size.
      The F35 has been targeted to defeat radars from C (4GHz/7.5cm) to Ka (40GHz/0.1cm). These are the main threat radars that are used for tracking and guiding missiles etc. Because the basic shape of the aircraft will give a low radar return, by painting the aircraft with radar absorbent material will also massively help lower the radar signature. This is where it’s crucial on a F35 to maintain the integrity of the surface finish, unlike a Typhoon for example. There will be a hefty maintenance penalty trying to maintain the RAM paint on this aircraft. The bonus being the paint material will be upgraded over time to counter emerging threats. Which compared to a new airframe or redesign is considerably cheaper.
      For the longwave radar, the best option is to network them together in a bi-static model. This will allow a broader angle of radars to try an get some return off a stealthy target, with the hope there will be enough data to build a 3D target. The next step is by going to a passive radar system, which uses a 4G phone network to build up an area picture of airborne targets. The passive network however, cannot at present discern the height of the target only the bearing.

LEAVE A REPLY

Please enter your comment!
Please enter your name here