Indian Military News, Reports, Data, etc.


PiSigma

"the engineer"
Sorry to say this but that's why it's a Fan Art. And what I can say fans knew no boundaries. Fans are every where. :)
I want to see official designs! India have a need for a light corvette for brown water fleet. I think their current focus on destroyers and carriers is too top heavy like the USN.
 

HaldilalSDF

Junior Member
Registered Member
I want to see official designs! India have a need for a light corvette for brown water fleet. I think their current focus on destroyers and carriers is too top heavy like the USN.
Currently IN operates the following Corvette and Patrol Vesels Classes :
4 Abhay Class Corvettes 500 tons ASuW.
8 Veer Class Corvettes based on Soviet Tarantul Class 4 in Reserves 500 tons ASW.
4 Khukri Class Corvette 1,500 tons AD.
4 Kora Class Corvette 1,500 tons Guided Missile.
4 Kamorta Class Corvette. 3,300 tons ASuW.
4 Bangaram Clas Patrol Vessel 300 tons.
14 Car Nicobar Patrol Vessel 350 tons.
4 Shaurya Class OPV 2,000 tons.

The Future Corvette programme.
Next Generation Missile Vessel NGMV 24 to 32 VLS 3,000 plus tons 6 planned RFI issued.

Project 28A / Next Generation Corvette 24 to 32 VLS 3,300 plus tons 6 planned RFI issued.

Next Generation Offshore Patrol Vessel NGOPV 16 VLS 2,300 tons 6 planned RFI issued.

Sanchi Class Replacment Vessel uknown VLS 2,000 tons. 6 planned.

ASW SWC corvettes 16 planned. Goa Shipyard design 850 tons GRSE design 1,000 tons U/C.

Car Nicobar Class Follow on Vessel 18 planned 500 plus tons.
 

HaldilalSDF

Junior Member
Registered Member
ADA is doing performance characterisation simulations of the LDRE UTTAM X-band AESA radar mated with the radome of Tejas. Such simulations are done at the end of the developmental cycle when individual performance of the radar & radome are known. The UTTAM is nearing deployment.
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HaldilalSDF

Junior Member
Registered Member
If one look at TRM density in X band seeker below. it has a 180mm diameter aperture size and has 84 radiating elements. Now if you scale up same configuration to say for SU 30 radar aperture of say 900mm how many TRM you can get? Seeker TRM density is probably less to avoid constructive and destructive interference + also to deal with power and cooling requirements. also vivaldi is basically two TRM packed in one so let's take it as a double . 84 × 2 > 168 elements? Since antenna size of a radar need to be comparable to it's wavelength and X band wavelength is between 2.5cm - 3.75cm.

We can calculate some good numbers. The equation to calculate TRM fill factor.

so here's the equation.

E = (4*A)/lamda ^2.

E = number of elements.
A= antenna physical area.

Since we know aperture size diameter of major fighter jets , including Tejas , SU 30 , etc and Seeker above and there wavelength , we can calculate the hypothetical TRM fill factor. The 180mm diameter antenna array give us around > between 72 minimum and 162 elements max. since the seeker has 84 we get a lamda of 3.48cm. And now for SU 30 with same lamda value as above as seeker ( 3.48 cm ) , with 90cm diameter aperture size. we get a fill factor of around 2 ,100 TRM count for our SU 30.

I might be way off here with my calculations and scaling up so free to correct me.
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HaldilalSDF

Junior Member
Registered Member
DRDO & industry are jointly developing an electric motor driven Pumpjet propulsor for submarines. It is meant for the upcoming SSBNs. BHEL has experience developing & deploying 20MW motors. That & the pumpjet R&D work done for the Shakti torpedo will prove critical here.
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HaldilalSDF

Junior Member
Registered Member
Government of India and Russia has entered into a joint venture for development of a Supersonic Long Range Anti Ship Cruise Missile system. DRDO & NPOM, Moscow are the development agencies. Programme PJ-10 is the DRDO part of the joint venture. The Programme started off with signing of contracts with Joint Venture company named as “BrahMos”. Platform Systems Work Centre: R&DE and Engineerings, Pune has been made a nodal agency for the development of Launcher & ground systems for BrahMos missile. The Platform Systems Work Centre includes design of various kinds of Launcher & Ground systems equipments for both demonstration launches as well as launch from land & ship platforms.
 

silentlurker

Junior Member
Registered Member
Government of India and Russia has entered into a joint venture for development of a Supersonic Long Range Anti Ship Cruise Missile system. DRDO & NPOM, Moscow are the development agencies. Programme PJ-10 is the DRDO part of the joint venture. The Programme started off with signing of contracts with Joint Venture company named as “BrahMos”. Platform Systems Work Centre: R&DE and Engineerings, Pune has been made a nodal agency for the development of Launcher & ground systems for BrahMos missile. The Platform Systems Work Centre includes design of various kinds of Launcher & Ground systems equipments for both demonstration launches as well as launch from land & ship platforms.
What is the news here? India and Russia already collaborated on Brahmos right? Is this brahmos II
 

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