DRDO, PSU and Private Defence Sector News

[Aditya Ballal]

“We're proud to announce the order for 1470 units of the Scorpio Classic for 12 units of the Indian Army across the nation.” - Mahindra & Mahindra.

 

[Love Charger]

“We're proud to announce the order for 1470 units of the Scorpio Classic for 12 units of the Indian Army across the nation.” - Mahindra & Mahindra.

Airforce uses black scorpio
I remember

 

[ezsasa]

pravaig
====
Auto Expo 2023: Defy SUV ‘Veer EV’ concept for Indian Army hogs limelight

 

[AnantS]

pravaig
====
Auto Expo 2023: Defy SUV ‘Veer EV’ concept for Indian Army hogs limelight


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i am more interested in materials used by them till date they have using frp for their auto product/proto. yet to show metallurgical expertise. Even this looks as if they are using FRP for body.

 

[flanker99]

pravaig
====
Auto Expo 2023: Defy SUV ‘Veer EV’ concept for Indian Army hogs limelight


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Do these guys have any product for civilian market?

 

[ezsasa]

Do these guys have any product for civilian market?

from their site

Pravaig: Electric Cars DEFY and VEER

The Pravaig manufactures electric vehicles - DEFY & VEER. Most sustainable, repairable,and privacy-respecting vehicles ever. Made in India.

www.pravaig.com

 

[Jimih]

pravaig
====
Auto Expo 2023: Defy SUV ‘Veer EV’ concept for Indian Army hogs limelight


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Both Altitude and Temperature are enemies of EVs.

IA's AOR mostly have these two factors clinged to it.

At higher altitudes, electric cars can lose power as the air is thinner. This can cause the battery to work harder to maintain a charge, which can shorten the range of the car. Additionally driving at high altitudes can cause the motor to overheat.

And in extreme cold temperature, as the mercury dips, so does does the EV's battery’s charge.

Hope that IA doesn't takes decisions in haste, and the import lobby within it smiles over the future prospects of procuring foreign made EVs.

 

[WarmongerLSK]

Both Altitude and Temperature are enemies of EVs.

IA's AOR mostly have these two factors clinged to it.

At higher altitudes, electric cars can lose power as the air is thinner. This can cause the battery to work harder to maintain a charge, which can shorten the range of the car. Additionally driving at high altitudes can cause the motor to overheat.

Air is not needed to run the electric engine. So, why does having thinner air matter?

 

[Jimih]

Air is not needed to run the electric engine. So, why does having thinner air matter?

With air getting thinner it reduces EV's motors ability to dissipate the heat it generates thus reducing the battery's charge in the process.

 

[Blademaster]

i am more interested in materials used by them till date they have using frp for their auto product/proto. yet to show metallurgical expertise. Even this looks as if they are using FRP for body.

What is FRP? Fiberglass epoxy?

 

[Blademaster]

With air getting thinner it reduces EV's motors ability to dissipate the heat it generates thus reducing the battery's charge in the process.

Then use a radiator

 

[WarmongerLSK]

With air getting thinner it reduces EV's motors ability to dissipate the heat it generates thus reducing the battery's charge in the process.

Isn't the air a lot colder? That should compensate.

 

[binayak95]

Isn't the air a lot colder? That should compensate.

Batteries (LiPo) generate very high temperatures when under sustained load; 80 degrees and more. Most mutlicopter drones opt for passive air flow cooling and dont use radiators/active cooling (for weight and endurance reasons) and thus, cooling and power delivery becomes a huge headache

 

[WarmongerLSK]

Drones have to balance, so, they won't do active cooling but he is talking about EVs. They should be able to do it.

 

[flanker99]

 

[Jimih]

Drones have to balance, so, they won't do active cooling but he is talking about EVs. They should be able to do it.

The IA's current focus should be on the development and adoption of 'Hybrid Vehicles' for its troops before going full "electric". Don't know what happened to the proposition in the year 2018 when there were talks about MOD procuring Hybrid Vehicles for IA.

Issues like weight restrictions, charging options, and safety concerns will always hamper the quick intake of EVs into the inventory of armed forces world wide.

US and Western military is now focussing on development of Hybrids, as EV usage is mostly restricted to small logistical vehicles for transport in barracks.

 

[ezsasa]

The genius moderator of this thread let the MISINFORMATION of "EVs unable to mythically 'air cool' "remain in this thread. But moved all my posts rebutting it and providing scientific explanation to some non-descript thread.
Bravo for being accessory to misinformation dissemination!

your posts have been moved here, you must have received notification in the top right corner of the page.

EV Recommendation Thread

Fellas! Innards of Thermodynamics seems like is a distant discussion in the present ambiance but you guys definitely need to revisit your LOGIC at the least! Explain to me this: An electric motor and battery packs that could (in extreme situations) heat up to 70-80 deg C is a major issue that...

defenceforumindia.com

 

[ezsasa]

I think I was discussing politely. But I see people with ZERO understanding of the issue gang up against me and try to shut me down with invectives.
Coupled with that, I see the moderator let the non-sensical take on EV motor/battery cooling remain here...but shove my rebuttals elsewhere.
So, yeah! It's hard to believe 'nobody is trying to be against me'.

calm down, have your say politely.
continue with rest of the posts on EV on the other thread.

as far as moderation is concerned, that's moderator's call, not yours.

 

[Hari Sud]

Break up DRDO in the same way as the Defence Ordinance Factory Board was broken up into multiple units with independent management, accountability and mandate. They should have independent service rules, separate hiring criteria and keep the IAS cadre officers out of it. If there is a need, outside scientist be hired to head department and manage the affairs. Then it will be easier to manage them and check their performance and fix responsibility.

Right now DRDO is an extension of a government department with similar attitude to work…..that is pass the buck and take no responsibility.

Only Modi can do it. A lot of leaders prior to Modi thought about it but could not do it.

 

[Love Charger]

Break up DRDO in the same way as the Defence Ordinance Factory Board was broken up into multiple units with independent management, accountability and mandate. They should have independent service rules, separate hiring criteria and keep the IAS cadre officers out of it. If there is a need, outside scientist be hired to head department and manage the affairs. Then it will be easier to manage them and check their performance and fix responsibility.

Right now DRDO is an extension of a government department with similar attitude to work…..that is pass the buck and take no responsibility.

Only Modi can do it. A lot of leaders prior to Modi thought about it but could not do it.

It should remain as a government department
And you won't keep IAS out of it , it's like saying a man to restrain himself from wearing a sweater in cold.
Thing is , drdo is a research agency , what is needed is a permanent body of coordination between each wing of armed forces with drdo for the type of products they wish .
These committees can be headed by a joint secretary from the defence ministry and a secretary from the defence acquisition council and a principal secretary from the finance ministry to ensure that armed forces frame a rational demand with no over exceeding cost . And to ensure the overall government oversight over such projects .
Cvc and enforcement directorate can depute their own personal in the higher executive committee of JS of MOD, PS of MOF and a official of suitable rank from DAC.

Drdo needs a unified organization as it is now. ,adopting OFB like approach will not make anything better , if not worse .