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- The air-to-air missiles<\/strong>, which use SFDR technology,<\/strong> can achieve longer ranges<\/strong> as they do not require oxidisers, among other reasons.<\/strong>\n
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- DRDO began developing SFDR first in 2017 and had conducted successful tests in 2018 and 2019 as well<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
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<\/p>\nAbout Solid Fuel Ducted Ramjet (SFDR)<\/strong><\/p>\n
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- It is a missile propulsion system developed by the Defence Research and Development Organisation (DRDO). <\/strong><\/li>\n
- It is a missile propulsion system that comprises<\/strong> the thrust modulated ducted rocket along with the reduced smoke nozzle-less missile booster. <\/strong>\n
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- Thrust modulation of the system is achieved through a hot gas flow controller.<\/li>\n<\/ul>\n<\/li>\n
- It uses a solid fuelled air-breathing ramjet engine.<\/li>\n
- It was developed with the aim of developing the critical technologies<\/strong> which are required in the propulsion systems of future long-range air-to-air missiles of India<\/strong>.<\/li>\n<\/ul>\n
Significance<\/strong><\/p>\n
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- The SFDR technology will help DRDO with the technological advantage to develop long-range air-to-air missiles (AAMs).\n
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- At present, such technology is available only with a handful of countries in the world and India is one of them.<\/li>\n<\/ul>\n<\/li>\n
- With this technology ,India can have fastest long-range missiles in two categories, providing full-fledged <\/strong>and multi-layered aerial protection from hostile attacks.<\/strong><\/li>\n<\/ul>\n
About Ramjet <\/strong><\/p>\n
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- It is a form of air-breathing jet engine<\/strong> that uses the engine\u2019s forward motion<\/strong> to compress incoming air without an axial compressor or a centrifugal compressor.<\/strong><\/li>\n
- \u00a0A ramjet-powered vehicle requires an assisted take-off like a rocket assist <\/strong>to accelerate it to a speed where it begins to produce thrust.<\/strong><\/li>\n
- Ramjets work most efficiently at supersonic speeds<\/strong> around Mach 3 (three times the speed of sound) and can operate up to speeds of Mach 6.<\/strong><\/li>\n
- However, the ramjet efficiency starts<\/strong> to drop when the vehicle reaches hypersonic speeds.<\/strong><\/li>\n
- Ramjet powered missiles provide greater range<\/strong> and a higher average speed <\/strong>compared to missiles powered by solid propellants.<\/strong><\/li>\n
- ramjet missiles can carry a bigger warhead as they do not have to carry an oxidizer.<\/li>\n<\/ul>\n
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<\/p>\nApplication<\/strong><\/p>\n
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- Ramjets can be particularly useful in applications requiring a small and simple mechanism for high-speed use, such as missiles.<\/li>\n
- They have also been used successfully, though not efficiently, as tip jets on the end of helicopter rotors.<\/li>\n<\/ul>\n
Scramjet engine:<\/strong><\/p>\n
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- A scramjet (supersonic-combustion ramjet) is a ramjet engine in which the airflow through the engine remains supersonic,<\/strong> or greater than the speed of sound. Scramjet powered vehicles are envisioned to operate at speeds up to at least Mach 15.<\/li>\n
- In the chamber, the air mixes with the fuel to ignite supersonic combustion but the cruiser\u2019s flight will be at a hypersonic speed of Mach six to seven. So it is called supersonic combustion ramjet or Scramjet.<\/li>\n<\/ul>\n
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\n \n Defence Research and Development Organisation (DRDO)<\/strong><\/p>\n
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- \u00a0It is under the administrative control of the Ministry of Defence, Government of India.<\/li>\n
- It is charged with the military\u2019s research and development.<\/li>\n
- \u00a0It was formed in 1958 and has its Headquarter in Delhi.<\/li>\n
- \u00a0DRDO is India\u2019s largest and most diverse research organisation with a network of 52 laboratories, which are engaged in developing defence technologies covering various fields.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
- In the chamber, the air mixes with the fuel to ignite supersonic combustion but the cruiser\u2019s flight will be at a hypersonic speed of Mach six to seven. So it is called supersonic combustion ramjet or Scramjet.<\/li>\n<\/ul>\n
- A scramjet (supersonic-combustion ramjet) is a ramjet engine in which the airflow through the engine remains supersonic,<\/strong> or greater than the speed of sound. Scramjet powered vehicles are envisioned to operate at speeds up to at least Mach 15.<\/li>\n
- \u00a0A ramjet-powered vehicle requires an assisted take-off like a rocket assist <\/strong>to accelerate it to a speed where it begins to produce thrust.<\/strong><\/li>\n
- It is a form of air-breathing jet engine<\/strong> that uses the engine\u2019s forward motion<\/strong> to compress incoming air without an axial compressor or a centrifugal compressor.<\/strong><\/li>\n
- The SFDR technology will help DRDO with the technological advantage to develop long-range air-to-air missiles (AAMs).\n
- It is a missile propulsion system that comprises<\/strong> the thrust modulated ducted rocket along with the reduced smoke nozzle-less missile booster. <\/strong>\n
- It is a missile propulsion system developed by the Defence Research and Development Organisation (DRDO). <\/strong><\/li>\n
- DRDO began developing SFDR first in 2017 and had conducted successful tests in 2018 and 2019 as well<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n