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by m463 29 days ago
It seems like that is the limit. the proposal:

https://www.faa.gov/newsroom/ARM-260115-001_Supersonic_NPRM_...

... also alludes to new designs where the boom doesn't reach the ground. It also talks about primary and secondary booms.

Will folks with these planes eliminate risk of going > .11 psf by having the boom stay off the surface?