Posted by Pete Jung on Wednesday, October 02, 2002 at 10:22AM :
In Reply to: the LOUDEST hemi?!? posted by AAA on Monday, September 30, 2002 at 11:02AM :
Hi.
Some trivia to add to this interesting issue:
BB&N, an acoustic engineering firm in the Boston area, has (or had, anyway) an anechoic chamber equipped with a noisemaker used to develop SERIOUR acoustic energy for testing. This consisted of a Detroit Diesel 8V-71 driving an aircraft supercharger off of a Pratt-Whitney 18 cylinder radial engine. The output of the supercharger was ducted through a foghorn from a steamship. When at full chat, this monster developed 175dB! And you could hear it for blocks around when they fired it up, even though it was inside the chamber.
Pete
Follow Ups: