Odd. No other news confirms this.
May be false news.
Odd. No other news confirms this.
Ramana garu, the tweet disappeared. It looks like fake news.ramana wrote:Odd. No other news confirms this.
May be false news.
Air version of BrahMos supersonic cruise missile was successfully test fired from the supersonic fighter aircraft Sukhoi 30 MK-I at 1030 hrs from Integrated Test Range, Chandipur off the coast of Odisha on December 08, 2021. In this copy book flight, the missile launched from the aircraft followed the pre-planned trajectory meeting all mission objectives.
The launch is a major milestone in the BrahMos development. It clears the system for the serial production of air-version BrahMos missiles within the country. Major airframe assemblies which form the integral part of the Ramjet Engine are indigenously developed by Indian Industry. These include metallic and non-metallic air frame sections comprising Ramjet fuel tank and pneumatic fuel supply system. During the test,the structural integrity and functional performance have been proven. The air version of BrahMos was last flight tested in July 2021.
Raksha Mantri Shri Rajnath Singh has praised Defence Research and Development Organisation (DRDO), BrahMos, Indian Air Force and the industry on the successful test firing.Congratulating the teams involved in the flight test, Secretary Department of Defence R&D and Chairman DRDO Dr G Satheesh Reddy said various laboratories of DRDO, academic institutions, quality assurance & certification agencies, Public Sector undertakings and Indian Air Force participated in the development, testing, production and induction of this complex missile system.
BrahMos is a Joint Venture between India (DRDO) and Russia (NPOM) for the development, production and marketing of the supersonic cruise missile. BrahMos is the potent offensive missile weapon system already inducted into the Armed Forces.
This VL-SRSAM seems to be a stealth missile, absolutely invisible for many seconds after launch.Kakarat wrote:
VL SRSAM though there is plan for land based variant is not in same class as NASAMS-2, QRSAM is its counterpart. Regardless I think it was mainly to please Trump admin and it died with change in admin.Pratyush wrote:Hopefully, this ends the circus Aamram purchase.
If it is just Astra with added vertical thrusters and increased propellant to increase its launch speed, there won’t be much of a range increase.Aditya_V wrote:Well then next question is can VL SRAM when launched from aircraft act as a longer range Astra or Astra 2 causing nasty suprise to our adversaries
I hope we also get official confirmation of this test. Guided Pinaka with these munition will sanitize the Skardu like airbase or any military installation.https://twitter.com/TheLegateIN/status/ ... 4413895681
India successfully test fires cluster munitions version of Pinaka rocket.
Each rocket has 234 bomblets and will be used for area suppression strikes against enemy troop/vehicle concentrations.
All versions of Pinaka (Mk1, Mk2 and guided Pinaka) can be equipped with this warhead.
Indranil: so, why is Astra-Mk2's range higher than Mk1? Better propellant?Indranil wrote:VLSRSAM is not larger than Astra Mk1. It is slightly longer because of the JVC. Astra Mk1 itself had very high TWR. So no augmentation was required.
QRSAM is larger than Astra Mk1.
Astra Mk2 is almost identical to Astra Mk1 in overall dimensions. To the naked eye, one can't tell the difference. But it is 12 millimeters wider.
The dual pulse motor has ON/OFF control or in lay terms can turn off and reignite its propellant. In lower or sustain mode the missile cruises without much acceleration but sustaining its instantaneous velocity. For example lets say it has two mode where full burn is 1x and sustain flight mode is with ignition off, assume full burn range at ~100km (powered flight) and it takes about 70 seconds to use up all the fuel (it has 140kg to start with, so assume it consumes at rate of 2kg per second if full pulse mode), then in principal if motor is on sustain flight mode for say 20 seconds in middle, it will save up about 40 kg of fuel during the off mode while still maintaining the velocity of the missile so when it goes back in full mode it can now accelerate better (lower weight) plus get 20 more seconds of fully powered flight time ergo increased range and wider no escape zone.Prem Kumar wrote:Thanks, but how does that increase the range? I can understand why it will increase end-game effectiveness (NEZ)
Dual pulse allows the missile to take a more lofted trajectory where it can coast longer in rarified atmosphere and then gain velocity in second pulse for end game.Prem Kumar wrote:Thanks, but how does that increase the range? I can understand why it will increase end-game effectiveness (NEZ)
Yes when referring to ICBM what you said is right but for A2A missiles trajectories are very different as you basically chasing enemy fighter and want to close in as fast as possible. I believe standard practice to break the lock is for fighter to go cold and dive to get into denser atmosphere and execute multiple rolls and turns to bleed off the momentum of tail chasing a2a missile.Thakur_B wrote:Dual pulse allows the missile to take a more lofted trajectory where it can coast longer in rarified atmosphere and then gain velocity in second pulse for end game.Prem Kumar wrote:Thanks, but how does that increase the range? I can understand why it will increase end-game effectiveness (NEZ)
Are you sure about this? AFAIK that technology is called throttable solid motor. Because conventionally solid propellants cannot be turned off once ignited. Dual pulse has propellants in two separate segments i.e. Boost-->Coast-->Boost.Patni wrote: The dual pulse motor has ON/OFF control or in lay terms can turn off and reignite its propellant.
That's correct. It isn't "On" and "Off". It is a distinct second pulse the timing of which is controllable so that you can choose when to ignite the second pulse not the duration of either the first or second pulse like you can with liquid fuel. There are ways and technologies to get throttleability from solid rocket motors (a few DARPA programs are developing this) but those are at very early stages of maturity. A dual or multi-pulse motor is basically different separated segments firing at different times with possibly different and distinct grain properties and boost-sustain combinations. A dual pulse motor design doesn't increase the amount of propellant you have (it might even reduce it slightly) but gives you some flexibility in terms of delaying when the second pulse is ignited.souravB wrote:Are you sure about this? AFAIK that technology is called throttable solid motor. Because conventionally solid propellants cannot be turned off once ignited. Dual pulse has propellants in two separate segments i.e. Boost-->Coast-->Boost.Patni wrote: The dual pulse motor has ON/OFF control or in lay terms can turn off and reignite its propellant.
You can time the 2nd pulse to give a boost i.e. more range or use it to gain energy i.e. maneuverability.Prem Kumar wrote:Thanks for the clarifications, gents.
The dual-pulse design is to increase the NEZ and give end-game maneurvability.
When time to target is not the limiting factor, it allows you to plan profiles with an extended, slower cruise phase and recover energy using a second pulse so that you still have some margin as you complete the intercept. If time was a limiting factor you'd be firing both of them one after the other which would limit the engagement range. Its the same with air-breathers as well. Something employing a variable flow ducted rocket/ramjet is doing the same..i.e. using the first pulse to accelerate, and then using the air-breathing motor to cruise at a slower speed to extend range and then throttling up at the very last minute to regain some margin to manuever. If you force an air-breather to cruise at its fastest most speed it too will suffer range degradation.Prem Kumar wrote:Which brings me back to the original question. If dual-pulse = 2 single pulse motors (which means the total amount of propellant is the same) + dimensions are the same, how much extra range if any, can be squeezed out of a dual-pulse design?
Successful tests of Pinaka Extended Range (Pinaka-ER), Area Denial Munitions (ADM) and indigenously developed fuzes have been carried out at various test ranges. The Pinaka-ER Multi Barrel Rocket Launcher System was successfully tested at Pokharan range. The system is jointly designed by laboratories of Defence Research and Development Organisation (DRDO) - Armament Research & Development Establishment (ARDE), Pune and High Energy Materials Research Laboratory (HEMRL), Pune.
The DRDO, after establishing the performance efficacy of the enhanced range Pinaka, transferred the technology of the system to the industry. The Industry Partner has manufactured enhanced Pinaka Mk-1 rockets with DRDO’s handholding during the production and Quality Assurance. In continuation of the Transfer of Technology absorption, rockets developed by the industry have undergone the performance evaluation and quality certification process. The hand holding during the production, quality assurance and launch coordination for bulk production is being provided by the DRDO design team and QA agencies nominated for the system.
The DRDO, along with the Army, conducted series of performance evaluation trials of these industry produced rockets at Field Firing Ranges during the last three days. In these trials, enhanced range Pinaka rockets were test fired at different ranges with various warhead capabilities. All the trial objectives were met satisfactorily. A number of 24 rockets were fired for different ranges and warhead capabilities to meet the objectives of accuracy and consistency. With this, the initial phase of technology absorption of Pinaka-ER by the Industry Partner has successfully been completed making the Industry Partner ready for series production of the rocket system.
The Pinaka-ER is the upgraded version of earlier Pinaka version which has been in service with the Indian Army for the last decade. The system has been designed in the light of emerging requirements with advanced technologies enhancing the range.
The Area Denial Munition (ADM) variants of munition designed by the ARDE, Pune for Pinaka and manufactured by the industry partners under technology transfer were successfully carried out at Pokhran Field Firing Ranges. These trials are part of performance evaluation under technology absorption.
The indigenously-developed proximity fuzes for Pinaka rockets have also been tested. The ARDE, Pune has developed different fuzes for Pinaka rocket for different types of applications. After design validation trials, dynamic performance evaluation of these fuzes have been evaluated with flight testing. Consistency in performance of fuzes has been established in consecutive flight trials.
These has been developed through dedicated indigenous R&D efforts for the first time in the country. These indigenously developed fuzes will replace the imported fuzes and save foreign exchange. The ARDE has also designed miniaturised fuzes for ADMs. Performance of dual-purpose Direct-Action Self Destruction (DASD) & Anti-Tank Munition (ATM) fuzes were evaluated during the current flight trials and the results were satisfactory. All the mission objectives were successfully in all the above trials.
Some of the tests were in different places and different userPrem Kumar wrote:Looks like QRSAM was also tested yesterday per some Twitter handles.
DRDO seems to test in clusters these days. Might be easier to get all personnel & equipment in one place for a week and get a bulk of stuff tested
This round is: VL-SRSAM, Air-launched Brahmos, Pinaka-ER with new munitions, fuze & QRSAM
Prem Kumar wrote:Thanks for the clarifications, gents.
Which brings me back to the original question. If dual-pulse = 2 single pulse motors (which means the total amount of propellant is the same) + dimensions are the same, how much extra range if any, can be squeezed out of a dual-pulse design?
The dual-pulse design is to increase the NEZ and give end-game maneurvability.
Yes, there is more control over trajectory shaping. But I am not so sure that we get a 160 Km Astra-2 from a 110 Km Astra-1 purely because of going from single-pulse to dual-pulse
Or we need to be readyPrem Kumar wrote:Looks like QRSAM was also tested yesterday per some Twitter handles.
DRDO seems to test in clusters these days. Might be easier to get all personnel & equipment in one place for a week and get a bulk of stuff tested
This round is: VL-SRSAM, Air-launched Brahmos, Pinaka-ER with new munitions, fuze & QRSAM
And, monsoon had delayed some of them, perhaps.Kakarat wrote:Some of the tests were in different places and different user
More tests are lined up for the next few weeks so yes it seems to be the post monsoon lineupSSridhar wrote:And, monsoon had delayed some of them, perhaps.Kakarat wrote:Some of the tests were in different places and different user
industry produced rockets = Economic Explosives Ltd, Nagpur, produced rockets.India successfully tested multi barrel rocket launcher system with extended range at Pokharan range, on Saturday.
Defence Research and Development Organisation (DRDO) in a statement said that successful tests of Pinaka Extended Range (Pinaka-ER), Area Denial Munitions (ADM) and indigenously developed fuzes have been carried out at various test ranges.
The industry partner has manufactured enhanced Pinaka Mk-1 rockets with DRDO's hand holding during the production and Quality Assurance.
The DRDO, along with the Army, conducted series of performance evaluation trials of these industry produced rockets at Field Firing Ranges in the last three days. In these trials, enhanced range Pinaka rockets were test fired at different ranges with various warhead capabilities.
All the trial objectives were met satisfactorily. A total of 24 rockets were fired for different ranges and warhead capabilities to meet the objectives of accuracy and consistency.
With this, the initial phase of technology absorption of Pinaka-ER by the industry partner has successfully been completed making it ready for series production of the rocket system.
The Area Denial Munition (ADM) variants of munition designed by the ARDE, Pune for Pinaka and manufactured by the industry partners under technology transfer were successfully carried out at Pokhran Field Firing Ranges. These trials are part of performance evaluation under technology absorption.
The indigenously-developed proximity fuzes for Pinaka rockets have also been tested. The ARDE, Pune has developed different fuzes for Pinaka rocket for different types of applications. After design validation trials, dynamic performance evaluation of these fuzes have been evaluated with flight testing. Consistency in performance of fuzes has been established in consecutive flight trials.
The ARDE has also designed miniaturised fuzes for ADMs. Performance of dual-purpose Direct-Action Self Destruction (DASD) and Anti-Tank Munition (ATM) fuzes were evaluated during the current flight trials and the results were satisfactory. All the mission objectives were successfully in all the above trials.