ENP Newswire -
Release date- 29012014 - The first round of acoustic tests on a scale model of
The tests will allow engineers to verify the design of the sound suppression system being developed for the agency's new deep space rocket.
The testing, which began
'We can verify the launch environments the SLS vehicle was designed around and determine the effectiveness of the sound suppression systems,' said
A 5-percent scale model of the Space Launch System (SLS) is ignited for five seconds to measure the affects acoustic noise and pressure have on the vehicle at liftoff. The green flame is a result of the ignition fluid that is burned along with the propellant during this short-duration test.
During the tests, a 5-percent scale model of the SLS is ignited for five seconds at a time while microphones, located on the vehicle and similarly scaled mobile launcher, tower and exhaust duct, collect acoustic data. A thrust plate, side restraints and cables keep the model secure.
Engineers are running many of the evaluations with a system known as rainbirds, huge water nozzles on the mobile launcher at
Water is the main component of the sound suppression system because it helps protect the launch vehicle and its payload from damage caused by acoustical energy. SLS with
A series of acoustics tests also is taking place at the
First to be tested is the rocket's core stage, which houses many of the launch vehicle's critical pieces including the flight computer and avionics. The test of the fully assembled vehicle, which will include the solid rocket motors, will be conducted later this year.
The SLS core stage model has four liquid oxygen-hydrogen thrusters that simulate the
The first flight test of the SLS in 2017 will be configured for a 70-metric-ton (77-ton) lift capacity and carry an uncrewed Orion spacecraft beyond low-Earth orbit to test the performance of the integrated system. As the SLS is evolved, it will the most powerful rocket ever built and provide an unprecedented lift capability of 130 metric tons (143 tons) to enable missions even farther into our solar system.
Marshall Space Flight Center
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