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60dB @ 100m is 77db @ 15m

For comparison, in Washington state, the legal limit for an automotive exhaust is 72db@15m.

Still an achievement, but definitely not something you want your neighbor to land at 3 am.

Can we please use dBa (a measure of absolute sound pressure) rather than dB (a relative term used in many domains)?

Obviously aircraft are louder than cars. It seems like this should be compared to a helicopter since it uses the same pads.

They should be compared to vehicles that occur in the space that these "air taxis" are meant to take off and land in. If they're relegated to airports, fine, compare to helicopters. If they're meant to take off and land in my neighborhood, compare them to cars.

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