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Kitty Hawk reveals its secret project, Heaviside

(techcrunch.com)
171 points BrooklynRage | 2 comments | 03 Oct 19 17:59 UTC | HN request time: 0.411s | source
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mortenjorck ◴[06 Oct 19 00:17 UTC] No.21168894[source]▶
When they led with “100x quieter than a helicopter,” my first reaction was a skeptical “well sure, decibels are logarithmic!” But 40dB from 600ft away is impressive, and within the range of what I would consider acceptable for residential flyover (though not takeoff and landing) in a medium-density area.
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1. ISL ◴[06 Oct 19 04:19 UTC] No.21169799[source]▶
100x quieter than a helicopter, with a few thousand people using them, is louder than a helicopter. A glance at any urban interstate would suggest that mass adoption would be loud...
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2. acollins1331 ◴[06 Oct 19 12:19 UTC] No.21171581[source]▶
Oh sure because the air roads are going to be packed as densely as the ground roads with planes flying tail to tail in multiple lanes. /S