DRDO, PSU and Private Defence Sector News

[Chinmoy]

So are they fielding something indegenious this time in the competition with their own 105mm gun on indegenious turret? Any clue what chassis will it use?

Production variant coming with DRDO's own turret and gun.

 

[NoobWannaLearn]

Production variant coming with DRDO's own turret and gun.

That's great news then the competition will be great

 

[Samej Jangir]

They just have to be guided within the vicinity of their targets and from then on, they can look for and home in on their targets autonomously based on the algorithm.

Ever heard of a certain system known as INS?? You think NATO hasn't been jamming GLONASS navigation system?? Yet there are countless videos of both sides using drones to punt ground vehicles of the other with near impunity. How do you recon it's happening??

INS is too complex to be used in small drones. For big ones like the size of TB2, it can be done but they are too big and visible anyways. That is where guidance becomes important. No, NATO has not been jamming GLONASS. GPS jamming is quite easy as the satellite signals are weak since they have to travel 20000+km and a powerful jammer or worse, a spoofer can be beamed for long distances. So, Russia, sitting in Syria, Africa, Kalinibgrad, Belarus will jam GPS everywhere, even in Europe, Middle east, Africa which will cause disruption of Western systems. Russian drones use Galileo, Baidou, GPS & Glonass all together. So, everything has to be jammed which NATO is unwilling.

Not true. As long as you have ample training data, you can train eo tracking for targets, then guide to target with simple controls

u dont even need ai for it . there is digital scene matching tech used for cruise missiles . just take in what the camera sees and match it with a local database . tech is already there for drones . seen open source library for it on github , dont know how effective it is tho .

Yes, the final homing in can be done using AI which is already being used in seekers of ATGM, homing missiles (anti ship, anti-structure like Brahmos). These systems are designed to quickly detect targets despite high speed. With panoramic cameras and lower speeds, targeting can definitely be done by AI. But the big question is about taking the drone close to the target without GPS? There are only few ways:
1. Using big drones which have INS but they will be big targets too
2. Use loitering munitions launched by rockets, small missiles or fighter jets 50+km away from the borders.

Small Drones are genuinely low end items which is hyped up in advertisement, PR by snake oil sellers like Turkey and due to their availability for civilian use. But in pure firepower, loitering munitions are way more potent. Instead of bothering with drones, simple loitering munitions attached to rockets will do wonders

 

[cyclops]

Vector Technics

https://vectortechnics.com/collections/uav-motors

https://www.linkedin.com/posts/vectortechnics_vectortechnics-evector-uavtechnology-activity-7191976096068739072-RJ2-

They make brushless motors for UAVs among other drone components.
Here's some coverage on them:

https://www.newsbharati.com/Encyc/2...nics-Introduces-Revolutionary-BLDC-Motor.html

https://yourstory.com/2024/05/vector-technics-impacting-indias-drone-landscape

https://startup.outlookindia.com/se...drive-local-manufacturing-of-drones-news-7974

 

[SwordOfDarkness]

INS is too complex to be used in small drones.

Bruh
What's your experience with drone design?
You can get dirt cheap ins sensors nowadays, more than enough for generic patrol over given area.
Forget that, the same sensor used in every single drone for drone stability in flight (gyro+magnetometer) is the basis of INS.
If you want to learn about it, look up IMU (Inertial measurement unit) sensors

 

[Samej Jangir]

Bruh
What's your experience with drone design?
You can get dirt cheap ins sensors nowadays, more than enough for generic patrol over given area.
Forget that, the same sensor used in every single drone for drone stability in flight (gyro+magnetometer) is the basis of INS.
If you want to learn about it, look up IMU (Inertial measurement unit) sensors

Except ring laser & Hemispherical resonator gyroscopes, rest are not accurate. These are most complex and need larger space to be implemented. Cheaper quartz, MEMS INS can be used but their accuracy will be poor.

 

[SwordOfDarkness]

Except ring laser & Hemispherical resonator gyroscopes, rest are not accurate. These are most complex and need larger space to be implemented. Cheaper quartz, MEMS INS can be used but their accuracy will be poor.

Ring laser gyro?

You're making drones or cruise missiles?

COTS sensor modules are more than accurate enough for the small distances covered by suicide drones.

 

[mokoman]

Ring laser gyro?

You're making drones or cruise missiles?

COTS sensor modules are more than accurate enough for the small distances covered by suicide drones.

dont ins have drift error ? how much do they cost anyway .

 

[Samej Jangir]

Ring laser gyro?

You're making drones or cruise missiles?

COTS sensor modules are more than accurate enough for the small distances covered by suicide drones.

No, since drones cover about 50km 1-way distance, even an error of 1% will be 0.5km which is huge for the tiny drone camera to pan and search. Since drones are slow moving, there is huge time window of half an hour for the nature's forces like turbulence, windspeed variations etc to act on them and drift it away. That is why loitering munitions attached to rockets are way better since rockets move fast, there is minimal time window for nature's forces to act and they can be more accurate.

 

[jai jaganath]

 

[NutCracker]

No, since drones cover about 50km 1-way distance, even an error of 1% will be 0.5km which is huge for the tiny drone camera to pan and search. Since drones are slow moving, there is huge time window of half an hour for the nature's forces like turbulence, windspeed variations etc to act on them and drift it away. That is why loitering munitions attached to rockets are way better since rockets move fast, there is minimal time window for nature's forces to act and they can be more accurate.

From which monkeyass are you pulling that 1% figure ,All just for the sake of debating ?

Also these drones will be flying at 2-5 km altitude, so with the help of inbuilt maps and camera, it can still compensate INS error .

 

[standard snowball]

Question : How many ELM 2022 Radars do we currently operate and on what indian platforms.
Also Is Kshitij related to HISAR Radar.

 

[jai jaganath]

Question : How many ELM 2022 Radars do we currently operate and on what indian platforms.
Also Is Kshitij related to HISAR Radar.

I don't have specific numbers
Even not in internet
But they are used in maritime dhruv and do-228 as mentioned

I read somewhere it's a completely new radar but may be better version derived from hisar

 

[Samej Jangir]

From which monkeyass are you pulling that 1% figure ,All just for the sake of debating ?

Also these drones will be flying at 2-5 km altitude, so with the help of inbuilt maps and camera, it can still compensate INS error .

1% is the minimum figure I am giving just for calculation. It will likely be more. As for maps, maps require that you have the GPS coordinates and does not work on hunches. Terrain mapping using cameras don't work accurately as at low altitudes, minor changes like growth of trees, new building, construction digging etc will make it look like different terrain

Small drones don't fly 2+km high. Also, their camera can't detect objects which are very far away as without a radar, zooming around inch by inch will be too much of a task

 

[mokoman]

From which monkeyass are you pulling that 1% figure ,All just for the sake of debating ?

Also these drones will be flying at 2-5 km altitude, so with the help of inbuilt maps and camera, it can still compensate INS error .

remember reading that it was 5% for the iranian shaheed drone .

 

[NutCracker]

1% is the minimum figure I am giving just for calculation. It will likely be more. As for maps, maps require that you have the GPS coordinates and does not work on hunches. Terrain mapping using cameras don't work accurately as at low altitudes, minor changes like growth of trees, new building, construction digging etc will make it look like different terrain

Small drones don't fly 2+km high. Also, their camera can't detect objects which are very far away as without a radar, zooming around inch by inch will be too much of a task

You are taking example of 50km ranged drone. Then those are bigger and substantially dense drone with good aerodynamics. Like lancet or switchblade 600 . They got enough speed to cover distance in 20 mins ,and can easily go upto 2km altitude. so your assumption of 1% is not accurate , it will be way below that.

remember reading that it was 5% for the iranian shaheed drone .

totally different category, it got 20X the range but less than 2x the speed of Lancet or SB600, means INS deviation can be a lot.

 

[Smoothbore125mm]

hey guys there are quite many ir footages in gaganshakti exercise which of our drones covered it any idea tapas,heron,etc ?

 

[Samej Jangir]

You are taking example of 50km ranged drone. Then those are bigger and substantially dense drone with good aerodynamics. Like lancet or switchblade 600 . They got enough speed to cover distance in 20 mins ,and can easily go upto 2km altitude. so your assumption of 1% is not accurate , it will be way below that.


totally different category, it got 20X the range but less than 2x the speed of Lancet or SB600, means INS deviation can be a lot.

Switchblade is a loitering munition, not a drone. It can't do surveillance and other support activity. It is strictly a one way attack munition. Even that has only 40km range and can travel at 100kmph which means 40km needs 24minutes at max speed. Even lancet has 100kmph speed and 30minute max endurance.

Smaller drones are even slower and its INS error will be much higher than 1%

 

[ezsasa]

1% is the minimum figure I am giving just for calculation. It will likely be more. As for maps, maps require that you have the GPS coordinates and does not work on hunches. Terrain mapping using cameras don't work accurately as at low altitudes, minor changes like growth of trees, new building, construction digging etc will make it look like different terrain

Small drones don't fly 2+km high. Also, their camera can't detect objects which are very far away as without a radar, zooming around inch by inch will be too much of a task

make it a habit to provide sources to back your assertions, you must have noticed that your opinions are being constantly challenged by other members.

endless debates based on opinions and individual perceptions, are not helpful for anyone.

ultimately this thread is premised on business of engineering, and engineering discussions should rely on valid source to break out of circular discussions.

 

[Corvus Splendens]

Production variant coming with DRDO's own turret and gun.

Cockerill turret and gun out ?