DRDL Scramjet Combustor test
Defence Research & Development Laboratory (DRDL) – is one of DRDO’s lab responsible for the design and development of state-of-the-art Missile Systems and technologies. The laboratory is preparing to test the scramjet combustor of the DRDO’s scramjet engine at National Aerospace Laboratories High Enthalpy test facility in Bengaluru. The scramjet engines are used to develop a Hypersonic cruise missile HCM.
The objective is to test the scramjet combustor at higher temperature for longer duration. The combustor will be tested to sustain higher temperature for more than 100s in full scale mode and 400s in sub scale mode.
Why test is important for Hypersonic Missile?
If a scramjet engine burns for 100sec at a speed of Mach 5 will give the range of close to 170km and if burnt for 400s will give range close to 680km. This will be just the range of the scramjet engine which gets separated from its launch vehicle. The range could be more if the combustor is tested at higher Mach number.
In the test conducted by DRDO in 2020, it was able to successfully demonstrate the hypersonic combustion for more than 20 seconds where the HSTDV continued on its desired flight path at a velocity of Mach 6 or nearly 02 km/second. The upcoming test by DRDL will test scramjet combustor almost 5times the duration for which the scramjet engine was tested back in 2020. This test will help DRDO to evaluate the scramjet engine and its performance characteristics such as how much pressure and temperature it can sustain.
Its important to note that the initial trials of scramjet engine which is aimed for shorter duration is easy to achieve, however the longer duration trials are difficult to attain and takes time. We can expect this test in coming few months. This will boost the scramjet combustion profile going to be used in Hypersonic vehicles or missiles.
DRDO’s 2 Hypersonic Missile Plan
DRDO has plans to develop two hypersonic cruise missiles based on the HSTDV technology. First one is surface to surface missile with range around 2500KM expected to enter services by 2024-25.
The second one is a smaller and compact version of hypersonic missile with a range around 700KM that can be launched from an aircraft.
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