DRDO, PSU and Private Defence Sector News

[Vamsi]

Bhai is it NPO Saturn 36mt or Kaveri ???

Saturn for Swift and Kaveri for Ghatak

 

[Karthi]

Bhai is it NPO Saturn 36mt or Kaveri ???

Final varaint will use Kaveri that's the plan hope we can succeed

 

[SavageKing456]

you guys joke but this has practical value.

when adversary sees this, he will only think its a goat.

"Look that has more b@lls than indians so goat fighter wins"

 

[Aditya Ballal]

Hey guys, I am new to the forum but have been an avid watcher of everyone for years. I want to say god bless everyone here especially the contributors. I was wondering where I can post pictures of a fully Indian made AK54r that I made under made in India scheme but I managed to source surplus parts and manufacture my own components as well to bring the cost down of this 16 inch ak54r to $230 US

Small arms and Light Weapons

If I'm not wrong chethan cheetah , crpf commandant took two rounds to his patka and still survived, none penetrated through the patka,between I love patka, its unique which makes us stand outside the crowd, we must working on improving patka with state of kevlar . Patka is just a piece of bent...

defenceforumindia.com

 

[mokoman]

View attachment 116088View attachment 116089
Top: Chinese Sharp Sword UCAV
Bottom: Russian S-70 UCAV

these are all full scale jets , SWIFT is only scaled down small test bed.

isnt it kinda pointless to compare ?

 

[porky_kicker]

Anyone upto the task ? ( As long as it makes sense )

 

[Covfefe]

Anyone upto the task ? ( As long as it makes sense )

Doesn't reentry of Agni BMs happen at higher 25+ Mach numbers? Do we have the design to make a hypersonic work at such great speeds? The usual hypersonics operate in the range of 5-8 Mach. Metallurgy can hardly keep up with the sustenance of the warheads at such speeds, making an Ogive-shaped engine on top of that?

Agni is a BM that goes into the exosphere before reentering the atmosphere. Can Hypersonic (a supersonic ramjet air-breathing engine) be ignited in such a rarified atmosphere? For reference, flame holding characteristics are a nightmare for hypersonics even in the atmosphere.

Not an expert, but this question does require some deliberation.

 

[porky_kicker]

Doesn't reentry of Agni BMs happen at higher 25+ Mach numbers? Do we have the design to make a hypersonic work at such great speeds? The usual hypersonics operate in the range of 5-8 Mach. Metallurgy can hardly keep up with the sustenance of the warheads at such speeds, making an Ogive-shaped engine on top of that?

Agni is a BM that goes into the exosphere before reentering the atmosphere. Can Hypersonic (a supersonic ramjet air-breathing engine) be ignited in such a rarified atmosphere? For reference, flame holding characteristics are a nightmare for hypersonics even in the atmosphere.

Not an expert, but this question does require some deliberation.

Show me anywhere in my post / infographic where i mentioned anything about ramjet / scramjet ?

What i talked about is hypersonic glide vehicle HGV & you are talking about hypersonic cruise vehicle HCV

So does your reply have any connection to my post ?

 

[Lonewolf]

Show me anywhere in my post / infographic where i mentioned anything about ramjet / scramjet ?

What i talked about is hypersonic glide vehicle HGV & you are talking about hypersonic cruise vehicle HCV

So does your reply have any connection to my post ?

Guidance part ? Also the tip of nose is a little odd from near or is it okay (asking a question )

 

[Covfefe]

Show me anywhere in my post / infographic where i mentioned anything about ramjet / scramjet ?

What i talked about is hypersonic glide vehicle HGV & you are talking about hypersonic cruise vehicle HCV

So does your reply have any connection to my post ?

Ohh my mistake. I confused it with HCVs.
How do HGVs decelerate to the lower Mach numbers?

 

[SavageKing456]

Anyone upto the task ? ( As long as it makes sense )

Glide vehicles are asymmetric
They create a difference in dynamic pressure using their shape which holds them up in flight

 

[porky_kicker]

Glide vehicles are asymmetric
They create a difference in dynamic pressure using their shape which holds them up in flight

Show me a assymetric HGV

During re-entry assymetric HGV will burn up due to uneven localised heating

 

[porky_kicker]

Ohh my mistake. I confused it with HCVs.
How do HGVs decelerate to the lower Mach numbers?

Afaik by bleeding energy through appropriate energy bleeding maneuvers

 

[Tang]

CFD code?

 

[The Shrike]

Computational Fluid Dynamics i'm guessing.

 

[Aniruddha Mulay]

these are all full scale jets , SWIFT is only scaled down small test bed.

isnt it kinda pointless to compare ?

Not Really.
If India has been successful in implementing 2D Fluidic TVC on a scaled down TD, then its not that difficult to implement it on the full scale Ghatak UCAV rather than the other way round.
Miniaturization of such tech is always difficult, and India has been able to do that, so its something to be proud of rather than have our colonial/inferiority complex get the better of us.

 

[no smoking]

Not Really.
If India has been successful in implementing 2D Fluidic TVC on a scaled down TD, then its not that difficult to implement it on the full scale Ghatak UCAV rather than the other way round.

I am afraid that is not true.
Scaled down model can only test part of aerodynamic design and flight control. The full size plane (UCAV or manned jet) is much more complicated:
Aerodynamic complexity is much higher;
requirement to the flight control is in another level due to the increase of the size, weight and structure;
You have to consider the shooting of the weapons will affect the plane itself;
A lot of more sub-systems will be added in: how can you squeeze them into a limited internal space; how they work well together;
Do you have a decent engine to support all these.

The list goes on and on.

Miniaturization of such tech is always difficult, and India has been able to do that, so its something to be proud of rather than have our colonial/inferiority complex get the better of us.

Miniaturization is not difficult at all.
Miniaturization while having the same functionalities is difficult.

 

[fire starter]

 

[gutenmorgen]

Thirty eight lakhs twenty eight thousands six hundreds and sixty five rupees and seventy six paise... WTF?

 

[Lonewolf]

Bids are made to be lowest of all