Varunastra ship launched torpedo

[Kunal Biswas]

We Indians ( Majority ) may know what American or some Russian do, But clueless ( Most of us ) on our own achievements...

really:shocked:indians did that much?

 

[sesha_maruthi27]

We Indians ( Majority ) may know what American or some Russian do, But clueless ( Most of us ) on our own achievements...

In fact in America it is the Indians who had passed out from IIT's and IISc's who are in R&D........

 

[sayareakd]

In fact in America it is the Indians who had passed out from IIT's and IISc's who are in R&D........

yeah we spend 1.5 crore on making IIT student and he goes to US............

 

[sesha_maruthi27]

yeah we spend 1.5 crore on making IIT student and he goes to US............

And the chinese steal the technology from an Indian who designed the anti-radar coating foe fighters in America........

There was a recent news about this saying that, an Indian who found the paint had passed it on to the chinese........

 

[Payeng]

F-21 Torpedo

Black Shark being loaded in a submarine

Possibly a full scale model of Varunastra(without the propeller cover???)

Old and rare pic of Varunastra

 

[Payeng]

Contra rotating screws are kinda old while latest trend is Pump-jet propulsion, I hope Varunastra in its final form is a pump-jet propulsion one.

 

[Abhijeet Dey]

=========== Offtopic =============

 

[ladder]

'Vaarunastra' trials likely later this year

VISAKHAPATNAM, FEB 28:
The prestigious heavy weight torpedo 'Vaarunastra' designed and developed by the Naval Science and Technology Laboratory (NSTL) here is set to undergo evaluation trials later this year.

It has already completed the technology trials and would be handed over to the Indian Navy for user evaluation trials (UET), according to V. Bhujanga Rao, Director-General - Naval Systems and Materials, Defence Research and Development Organisation (DRDO).

He was speaking on the sidelines of the National Science Day celebrations organised at Andhra University Department of Physics here on Friday. He said it would take at least one year after the UET for it to go into production.

The 1,500 kg heavy weight torpedo would be manufactured at the Bharat Dynamics Ltd (BDL) facility here. The BDL team was observing the development and assembly of the prototypes at the Talwar facility at the NSTL.

The concurrent engineering would help the BDL assimilate the technology faster and take it to production line after transfer of technology with little lead time, he explained.

The BDL facility was producing the light weight Tal torpedoes for the Indian Navy.

The Navy was evincing interest in the other prestigious project of the NSTL – underwater autonomous vehicle – and the NSTL would be able to go ahead with the project only after an official confirmation from the Navy.

[email protected]

'Vaarunastra' trials likely later this year | Business Line

 

[Kunal Biswas]

Trails done ..

 

[Twinblade]

Trails done ..

User trials not done yet. That picture is from older trials.

 

[Drsomnath999]

@Kunal Biswas

plz try to post the source from where this snipped pics is taken

that would make your post authentic

CHEERS

 

[Kunal Biswas]

I cannot say its the user trail, But was shown at 2014 defexpo ..

User trials not done yet. That picture is from older trials.

 

[Twinblade]

I cannot say its the user trail, But was shown at 2014 defexpo ..

Well there are so many stages of trials; technology demonstration/proof of concept trials, development trials, user trials, pre production standard trials, validation trials after entering service. Even the Shakti/Shakthi thermal torpedo is also undergoing trials in parallel.

 

[bose]

Well there are so many stages of trials; technology demonstration/proof of concept trials, development trials, user trials, pre production standard trials, validation trials after entering service. Even the Shakti/Shakthi thermal torpedo is also undergoing trials in parallel.

What is the difference between a "user Trails" and "Validation Trails after entering service" ??

 

[Twinblade]

What is the difference between a "user Trails" and "Validation Trails after entering service" ??

User trials are for evaluating a system, validation trials are to check if the production version of the product has been delivered as promised and does not have unforeseen issues interacting with other legacy/concurrent systems or networks and/or adverse effects from field use. For eg:- the recent trials of Akash by the army were validation trials.

 

[bose]

User trials are for evaluating a system, validation trials are to check if the production version of the product has been delivered as promised and does not have unforeseen issues interacting with other legacy/concurrent systems or networks and/or adverse effects from field use. For eg:- the recent trials of Akash by the army were validation trials.

Thanks for clarifications...

I was wondering how one would manages issues if those are identified at the "validation Trails after entering service"... specially in case of issues of integration with other legacy or concurrent systems... that may or may not lead to re look at the design aspects... as a thumb rule the risks / issues identified at later stage are always very costly to manage...

 

[Twinblade]

Thanks for clarifications...

I was wondering how one would manages issues if those are identified at the "validation Trails after entering service"... specially in case of issues of integration with other legacy or concurrent systems... that may or may not lead to re look at the design aspects... as a thumb rule the risks / issues identified at later stage are always very costly to manage...

Usually the issues found after several levels of testing are trivial and can be fixed with software patches/upgrades, review of SOPs or some minor redesign or component/material change during the manufacturing stage. If these minor glitches don't get ironed out, the product gets a less than favourable rep amongst the users, like INSAS. Sometimes these issues show up only during prolonged usage (such as the flaws in Dhruv Mk1 which caused category one crashes) and product recall and subsequent fixes in later editions are done.

Contra rotating screws are kinda old while latest trend is Pump-jet propulsion, I hope Varunastra in its final form is a pump-jet propulsion one.

Varunastra will retain contra rotating screws, Shakti has jet propulsion.

 

[rohit b3]

Can someone clarify the range of this Torpedo?

 

[Bheeshma]

30 Km
The Hindu : Andhra Pradesh / Visakhapatnam News : Varunastra torpedo induction next year
Shakti thermal torp will be 50 Km.

 

[cobra commando]

Varunastra tests prove torpedo, more soon

February 02, 2015: The DRDO's user evaluation trials of the Varunastra heavy weight torpedo (UET-09, UET-10 & UET-11) that were conducted in Nov 2014 went off successfully, but an intended second round of immediate tests was stalled by an unusual development -- the loss of one of the development torpedoes at sea. During one of the successful trials, it was found that the test torpedo had plunged down into the sea bed approximately 35 km from the coast of Visakhpatnam. The Indian Navy and DRDO enlisted the services of survey vessel to provide imagery of the sea bed in the area where the torpedo was believed to have gone down. After several days of scouting for the weapon system, the team had nearly given up hope, though the idea of abandoning the lost Varunastra was not considered given that the unit would contain crucial and indispensable performance data that would facilitate the next round of trials. Finally on December 23 last year, more than a month after the torpedo was lost, it was located and then fished out from the sea bed using a wire mesh mechanism that was extremely difficult to carry out. Sources say summer trials of the Varunastra are slated for April 2015, before final confirmatory trials towards the end of the year, before deployment in service and configuration for surface platforms.


Varunastra tests prove torpedo more soon - SP's MAI