Foot-print. Noise Monitoring.
Hi
If you were to fly over a noise monitoring point at say 1000ft agl, and the sound from your engines was 100db, then what would be the level in db, that the noise monitoring point would record?
What would the effect of flying at 1100ft, or 1200ft, above the noise monitoring point have on the db reading on the ground?
What would be the best technique, to reduce noise levels, thrust reduction, or increased altitude with no thrust reduction?
Do sound waves behave much like radio and light waves in this respect?