https://www.nextbigfuture.com/2023/05/flame-trench-or-water-cooled-steel-plate.html
Flame Trench or Water-Cooled Steel Plate? | NextBigFuture.com
May 8, 2023 - What will be ultimate answer for the SpaceX Starship launchpad? Will it be the water-cooled steel plate, an enhanced version of the water-cooled steel plate
flame trenchwater cooledsteel plate
https://www.planetary.org/space-images/pad-39b-flame-trench-looking
Pad 39B flame trench, looking northward | The Planetary Society
Pad 39B flame trench, looking northward
flame trenchpad39blookingnorthward