Gulfstream says it's getting ready to move on to the next phase of testing for its sonic boom-suppressing technology. As AVweb reported last year, the company successfully tested a 24-foot retractable nose boom that all but eliminates the shockwaves that create the big (and illegal over the U.S.) noise. The boom was originally tested on an F-15, but Gulfstream VP Pres Henne told the Savannah Morning News the next step is to test the boom on something more business jet-like but no timeline was suggested.
This is a companion discussion topic for the original entry at https://www.avweb.com/news/gulfstream-booming-still-looking-at-supersonics