I assume that is a joke?
Or are you implying that F117’s don’t reflect sound?
The way the f117 is stealthy is the REDIRECTION of the reflection.
Yes, it reflects sound, and it reflects radar, but just not back to the source.
That’s why it has all those funky angular planes on it. In the book “Skunkworks”, they said it was ironic that the math/geometry behind this approach has been around for a LONG time, and was discovered by a Russian mathematician.
I remember buying a model of it on September 26, 1985 in Harold Fuchs Hobby Shop while we were still denying their existence. What does the F-117 and an Ovation Guitar have in common.
I doubt they reflect much sound back to the source. Propagation is propagation.
Deflecting sound waves was kind of a side property (though Stealth is more than just RADAR observability). The dead bats suggested that a similar approach would be possible to defeat SONAR. Lockheed built the SEA SHADOW as a proof of concept. So far as we know, it never went further than that.