NASA's Exploration Ground Systems - IOPSS Wet Flow Test at Pad 39B A flow test of the Ignition Overpressure Protection and Sound Suppression water deluge system is underway on the mobile launcher
![Sound Suppression System at Second Launch Pad of SHAR. Notice how the deluge guns on top only activate once the booster nozzles of LVM3 are well out of the way. : r/ISRO Sound Suppression System at Second Launch Pad of SHAR. Notice how the deluge guns on top only activate once the booster nozzles of LVM3 are well out of the way. : r/ISRO](https://external-preview.redd.it/8si-Ec4AKMnUUjBwwpDBxeOu1eM6tpchqJjYzsm7Tm8.jpg?auto=webp&s=4f955ac694367e53f09875dc11e09ecabbb21716)
Sound Suppression System at Second Launch Pad of SHAR. Notice how the deluge guns on top only activate once the booster nozzles of LVM3 are well out of the way. : r/ISRO
![launch site - What's the geometry of Ignition Overpressure Protection system protecting rocket launches? - Space Exploration Stack Exchange launch site - What's the geometry of Ignition Overpressure Protection system protecting rocket launches? - Space Exploration Stack Exchange](https://i.stack.imgur.com/2o95im.jpg)
launch site - What's the geometry of Ignition Overpressure Protection system protecting rocket launches? - Space Exploration Stack Exchange
Is US the only country doing 'Sound Suppression' during Rocket launch? I don't remember seeing such a system in other country's launch - Quora
![Kennedy Completes Final Water Flow Test at Pad 39B for SLS Artemis Moon Rocket: Photos – Space UpClose Kennedy Completes Final Water Flow Test at Pad 39B for SLS Artemis Moon Rocket: Photos – Space UpClose](https://www.spaceupclose.com/wp-content/uploads/2019/10/IMG_2643_1a_KSC-Artemis-pad39B_Ken-Kremer.jpg)
Kennedy Completes Final Water Flow Test at Pad 39B for SLS Artemis Moon Rocket: Photos – Space UpClose
![Kennedy Completes Final Water Flow Test at Pad 39B for SLS Artemis Moon Rocket: Photos – Space UpClose Kennedy Completes Final Water Flow Test at Pad 39B for SLS Artemis Moon Rocket: Photos – Space UpClose](https://www.spaceupclose.com/wp-content/uploads/2019/10/IMG_2682_1a_KSC-Artemis-pad39B_Ken-Kremer.jpg)
Kennedy Completes Final Water Flow Test at Pad 39B for SLS Artemis Moon Rocket: Photos – Space UpClose
![Flame pit and Sound Suppression System image - Space Shuttle Tribute mod for Half-Life 2: Episode Two - Mod DB Flame pit and Sound Suppression System image - Space Shuttle Tribute mod for Half-Life 2: Episode Two - Mod DB](https://media.moddb.com/images/mods/1/11/10176/sts_121_2.jpg)
Flame pit and Sound Suppression System image - Space Shuttle Tribute mod for Half-Life 2: Episode Two - Mod DB
![Ryan Chylinski 🚀 on Twitter: "Rainbirds #spaceX #falconheavylaunch Part 2 A visual study of @SpaceX LC-39A's huge sound suppression system that insulated #FalconHeavy from its own violent acoustic waves. https://t.co/2nUbAZ0WhU" / Twitter Ryan Chylinski 🚀 on Twitter: "Rainbirds #spaceX #falconheavylaunch Part 2 A visual study of @SpaceX LC-39A's huge sound suppression system that insulated #FalconHeavy from its own violent acoustic waves. https://t.co/2nUbAZ0WhU" / Twitter](https://pbs.twimg.com/media/DWa8g4JWkAEH-2F.jpg)
Ryan Chylinski 🚀 on Twitter: "Rainbirds #spaceX #falconheavylaunch Part 2 A visual study of @SpaceX LC-39A's huge sound suppression system that insulated #FalconHeavy from its own violent acoustic waves. https://t.co/2nUbAZ0WhU" / Twitter
![SpaceX Launch table complexity and Sound suppression system. Boca Chica June 18 2021 : r/SpaceXLounge SpaceX Launch table complexity and Sound suppression system. Boca Chica June 18 2021 : r/SpaceXLounge](https://i.ytimg.com/vi/ib5yqUVr-tw/maxresdefault.jpg)