You literally can't build the spaceport that far away, if you are doing it over water, because there is nothing stopping the sound. https://www.bbc.com/future/

You literally can't build the spaceport that far away, if you are doing it over water, because there is nothing stopping the sound. https://www.bbc.com/future/article/20230306-just-how-loud-is-a-rocket-launch https://www.bbc.com/future/article/20230306-just-how-loud-is... >Even 1.5 miles (2.4km) away, the noise from a Saturn V launch was recorded as being 120 decibels https://www.wkcgroup.com/tools-room/inverse-square-law-sound-calculator/ https://www.wkcgroup.com/tools-room/inverse-square-law-sound... Gets you 101.6 decibels from 20 km away. Okay, how about 200 km over water? 81.6 decibels. Okay as a yearly event, not something that should happen every week. Okay, how about 2000 km over water? 61.6 decibels. What was the point of this idea again?