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#IP 1139 21 - 27 July 2014
BrahMos has made India a World Leader in missile technology with the fastest, high precision supersonic cruise Missile, realized in short time with a novel collaborative effort between India and Russia.
CSIR-NAL has successfully carried out the drop tests of BRAHM OS-A from Su-30 MKI model in 1.5 m Low Speed Wind Tunnel to estimate the actual trajectory of the missile at different conditions of the aircraft in a record time. NAL has also successfully conducted the captive and isolated strain gauge tests to generate highly accurate data needed for the BRAHMOS Air-Version project in Tri-sonic wind tunnels. It is noteworthy to mention that the Dynamic Store Separation Trials have been successfully conducted for the first time in the country.
For their breakthrough technology development and outstanding contribution National Aerospace Laboratories has been conferred with "Best Laboratory Award 2014" . Dr. Abdul Kalam, presented the Best Laboratory Award 2014 to CSIR-NAL during the celebration of BrahMos Day in New Delhi on 12 June 2014.
#IP 1138 14 - 20 July 2014
In the era of modern warfare, there is an immediate need to not only equip the Indian soldier with latest weaponry but also to revolutionize the techniques to train him for an efficient battlefield operation. Among the most basic skills of a soldier is marksmanship.
Marksmanship training requires positive and negative reinforcement of shooting techniques immediately after each shot is fired. It is not only essential to provide the marksman with an indication of where a bullet is fired at a target, but also provide a comprehensive statistics of how he/she has performed throughout his/her career as a marksman. Currently, the manual system used by the Indian Army involves the marksman firing shots at the target and subsequently walking up to the target (about 300m!) and identifying whether the shots were a hit or a miss. This primitive type of marksmanship training exhibits not only high turnaround times but is also inconsistent, unreliable, inaccurate and subjective.
Marksmanship training systems available from advanced countries for sale are mostly based on 1980s technology. Further they have exorbitant cost of ownership since they are not customized for the Indian environment and necessitate expensive after-sales service due to the black-box approach of the manufacturers.
The need was to develop a modern indigenous system which is tailor made to meet the requirements of the Indian Army at a cost lower than similar systems available elsewhere without compromising the performance.
Towards this end, the Experimental Aerodynamics Division at National Aerospace Laboratories, Bangalore and the Indian Army’s Simulator Development Division, Secunderabad have jointly developed a state-of-the-art Location of Bullet on Target System (LOBOTS) named ‘DHVANI’ (Detection and Hit Visualization using Acoustic ‘N’-wave Identification) for perfecting marksmanship skills by accurately determining the location of bullet impact and providing real-time feedback to the shooter.
The system is based on the basic principles of gas dynamics and aeroacoustics. Essentially, a bullet is a supersonic projectile which generates a shock wave from its leading edge, continuously at every point of its supersonic travel. At any instant along the bullet path, the shock wave envelope propagates in an invisible-cone continuously outward at an angle related to its Mach number.
The pressure wave in air caused due to the passing of the bullet results in a pressure profile known as the ‘N’ - wave because of its shape. If the rise in pressure and the associated frequencies fall within the range of audibility of human ear, the N-wave can be heard as a distinct sound. This sound is akin to the ‘Sonic Boom’ – the sound perceived on the ground when an aircraft flying overhead exceeds the speed of sound.
It is possible to determine the hit location of the bullet accurately by using an array of sensors to record the acoustic pressure rise due to the passing shock from the bullet and hence to detect the path of the incoming bullet. Using advanced algorithms developed at CSIR-NAL, the recorded signal from the sensors are analysed for the detection of the ‘Nwave’ and uses the geometrical shape of the shock wave to determine the co-ordinates of the bullet on the target. These co-ordinates are then wirelessly transmitted to a display at the shooter end. The whole process i.e. firing a shot to displaying at the shooter end takes less than a half a millisecond. At the shooter end, a multi-functional interactive GUI on a MIL grade laptop displays the results. A comprehensive database which will contain personnel details, shots fired and performance statistics ensures comprehensive logging for later analysis.
The entire process from the Indian Army’s request to the prototype testing took only 10 months, and a shoestring budget of Rs 40L for two units, demonstrating that all military related R&D need not have protracted delays and costs. Each prototype currently costs Rs 9 lakhs/firer lane, which is significantly lesser than the Rs 15-18 lakhs for each firer lane of older generation wired systems offered to the Indian Army. When the lifecycle costs are added in, this indigenous system works out to only about 40% of the cost of an imported one.
Considering that there are over 2000 firing lanes all over the country, the saving to the national exchequer is significant.
The system has undergone rigorous field trials at Army ranges in Bangalore, Secunderabad and Infantry School Mhow. The formal handing over of DHVANI by Director CSIR-NAL to Commandant SDD Secunderabad took place on July 03, 2014.
#IP 1137 7 - 13 July 2014
Dr B R Ambedkar Birthday celebrations at NAL - 2014
The 123rd birth anniversary of Bharath Ratna Dr. BR Ambedkar was celebrated at the CSIR-National Aerospace Laboratories on 27th May 2014. The Chief Guest for the day’s event was Shri. Purushottama Dass, Chairman, All India Canara Bank SC/ST Employees Welfare Association, Bangalore. The program began with a rhythmic recitation of Basavanna vachana sung by Ms Rashmi Gurumath.
Dr. R. Rajendran, Deputy Head, Propulsion, Liaison Officer (SC/ST), welcomed the dignitaries on dais, and the audience. In his welcome address he said that the formation of the RBI in the year 1934 was based on the ideas of Dr. Ambedkar’s. He also informed Dr. Ambedkar was quoted as a greatest Indian in the year 2012, by a poll organised by TV18 and CNN-IBN and nearly 20 million votes was received thus making him the most popular Indian figure. Dr. Baba Saheb was the only leader to participate in all the round table conferences held at London and the first person to read majority of the books in the Great London Library. In his respect Dr. BR Ambekar’s statue was laid in front of the London Library. Dr. Rajendran further commended few of his contributions viz., 8 hours of working, employees participation in the company’s management, maternity leave, upliftment of women status in the society, etc. He was a man against violence and always worked for the upliftment of the weaker section of the society. Dr. Rajendran recalled the statement made by the US President Mr. Barack Obama during his recent visit to India that, India is a great democratic Country in the whole world and the constitution of India was drafted by Dr. BR Ambedkar who belonged to the suppressed caste of the universe. Dr. Amebedkar was a great patriot and in one of his quote he mentions that “I am an Indian first, Indian last, nothing else but Indian”. The entire life and mission of Dr. Ambedkar was summarised as ‘neither I want Kingdom or Paradise, I only want the suffering of the poor to be eliminated’. With these remarks about Dr. Ambedkar, he introduced the chief guest Shri. Purushottama Dass, to the audience. All the dignitaries on the dais lit the ceremonial lamp and paid their tribute to Baba Saheb’s portrait and marked the event.
Shri. Doss thanked Director NAL and the organisers for inviting him to deliver the lecture titled “Dr B R Ambedkar’s Life and Achievements”. At the outset he praised the Director for the support rendered in continuing the welfare schemes towards the SC/ST students and upholding a good relationship among the employees and ensuring a health environment at NAL for employees to work towards technology development. He mentioned that celebrating Dr. Ambedkar’s birthday should not be a ritual, instead he wanted a change for the betterment of oneself and the society. Further he emphasised that we should all work for the development of the country, institution and this could be achieved only when we are united. Mr. Dass also mentioned that he was happy to speak in front of the Scientists who are considered as the ‘truth finders’, who would probe to find the facts and sources and are actively contributing in the field of science & technology leading to the development of the country and the world as well. He also mentioned that Dr. B R Ambedkar was a socio-economic scientist and a true human being who was very compassionate towards people and wanted to see his country develop in a scientific approach. Finally he emphasised everybody to cultivate the habit of reading good book, be honest and sincere to their work. He once again congratulated the students and told them to continue their efforts, work hard and contribute for the country’s bright future.
Shri MS Vidyanathan, Sr. COA, congratulated the meritorious students and announced the names who secured highest marks in the SSLC exams conducted by Government of Karnataka and also the CSIR-NAL SC/ST employee’s children, who secured highest marks in Science subject. Shri. Purushottama Dass distributed awards to the meritorious students.
Shri Shyam Chetty, Director, CSIR-NAL while presiding over the function, thanked Shri Purushottma Dass for graciously accepting the invitation and sharing his thoughts. One very important thing he emphasised was that, one needs to be honest, true to oneself and try to do the best for himself and society as well. Director mentioned that NAL is a wonderful institution and has been celebrating Dr. Ambedkar’s birthday since 1993 and continuing the welfare activities. He congratulated the young students for performing so well and wished them the best in their studies.
Dr. L Rangaraj, President, NAL SC/ST Employees Welfare Association thanked all the staff of NAL, invitees from other organisation for gracing the occasion. He acknowledged everyone involved in organizing the programme directly and indirectly and all the KTMD colleagues, Printing section, horticulture for their unstinted support. He specially thanked Ms. Sangeetha, KTMD who ably anchored the entire programme. He once again congratulated all the awardees and wished the students all the very best in their academics. He also thanked Director, NAL for the support in continuing the welfare schemes, HODs and Project Leaders who supported in the student training programme. The students had an opportunity to have a glimpse of the NAL facilities.
Mr Ananda G, STT
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