posted on Oct, 11 2006 @ 09:02 AM
I've heard of Air-Spike and Aero-Spike... but this technology seems infinitely more useful in some ways. NASA and Gulfstream have developed a
variable geometry "Quiet Spike" to reduce sonic boom and perhaps lead the way back to an enviro-friendlier SST through management of the sonic/aero
envelope. For those with an interest NASA has a page at the following link.