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#1
February 21st 08, 12:16 PM
posted to rec.aviation.piloting
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PDE
Acoustic levels behind the aircraft were as previously predicted.
Ground testing was audible at distances exceeding five miles from the airport runway The moment that PDE engines start showing up in populated areas they will be summarily banned just like the Concorde... I have stood less than a hundred feet off the starboard wing of the Concorde as it started its takeoff run and thoroughly enjoyed the noise and the chest pounding - though I am sure the subdivisions near the airport were scandalized...... I have stood five hundred feet (or more) from a modestly sized pulse jet engine that was being tested (roughly 100 pounds of thrust) on a rotating arm and absolutely could not stand it, I had to leave at a dead run... denny 
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