4 ms·
How is shaving 8 decibel from 150 a game changer? It's sure nice, but it's still deafening at 142 I just checked, everything beyond 110dB for 1.5min per day wil
by dgan 5y ago
How is shaving 8 decibel from 150 a game changer? It's sure nice, but it's still deafening at 142
I just checked, everything beyond 110dB for 1.5min per day will lead to a permanent hearing loss
- R0b0t1 5y agoAt what distance? Sound takes quite a bit of power to generate. It's likely this saves a noticeable amount of fuel (maybe over multiple flights). If it's an attachment this may not apply. After a certain point changes are incremental. We're at that stage with jet engines.
- Sainth 5y agoA 10 dB reduction is half the perceived loudness, so 8 dB is quite significant. 142 dB (SPL) will make you deaf instantly if you are right next to the sound source, but at a distance the 8dB reduction will make it sound much softer.
- HPsquared 5y ago10 decibels is a 10x reduction in energy. An 8dB reduction is a factor of 10^(8/10) = 6.3 times less energy radiated. Good luck getting a 6.3x improvement in any other parameter in an aircraft design without major sacrifices elsewhere.