11 ms·
Supersonic vehicles have been designed that minimize the size of the sonic boom. For example, the Lockheed Martin SAI produces a sonic boom 1% as big as the Con
by abdinoor 13y ago
Supersonic vehicles have been designed that minimize the size of the sonic boom. For example, the Lockheed Martin SAI produces a sonic boom 1% as big as the Concorde (http://en.wikipedia.org/wiki/SAI_Quiet_Supersonic_Transport http://en.wikipedia.org/wiki/SAI_Quiet_Supersonic_Transport).
- chiph 13y agoHmm. Maybe it won't be a problem after all. The size of the sonic boom seems to correlate positively with the size of the wing surface. Since a track (or tube) based system wouldn't need much of a wing, it ought to have a pretty small boom. However, I do want to point out that rifle shots are supersonic and are annoying to the neighbors, and they have no wings at all.
- FlyingAvatar 13y agoI'm pretty sure a subsonic rifle shot is still pretty loud. :)
- chiph 13y agoA friend has a rifle in 300 AAC Blackout. Subsonic ammo is far quieter than supersonic -- but you'd still want hearing protection. With a suppressor attached, it's quieter still -- you can fire it without wearing earplugs. But it's not "Hollywood quiet" - that's a movie myth.