News for hackers. Stuff that matters.

A comment on Missiles Are Now the Biggest Killer of Airline Passengers. Parent comment

Re:Missiles Are Now the Biggest Killer of Airline Passengers by sokoloff on Friday December 27, 2024 @10:14AM (#42522711)
> by the time you receive an IFF query, you know you're about to be shot at

I don’t think that’s the most common case for an IFF query. AWACS oversight aircraft likely issue more IFF queries than fighter intercepts do. You still want to respond to a friendly AWACS inquiry, even though that aircraft is 100nm away and no direct/immediate threat to you.

[ Parent | on HN ]
Re:Missiles Are Now the Biggest Killer of Airline Passengers by FuriouslyAdrift on Friday December 27, 2024 @11:00AM (#42523236)
100nm (more or less) is the positive identification radar advisory zone for a carrier group airspace... (AKA REDCROWN)
[ Parent | on HN ]
Re:Missiles Are Now the Biggest Killer of Airline Passengers by furyofantares on Friday December 27, 2024 @11:24AM (#42523457)
Less than 100 nanometers?

It always gets me when someone abbreviates nautical miles in lowercase even though context is (almost) always clear it can't be nanometers.

[ Parent | on HN ]
Re:Missiles Are Now the Biggest Killer of Airline Passengers by sokoloff on Friday December 27, 2024 @11:49AM (#42523704)
An AWACS aircraft within 100 nanometers of you would indeed represent a direct and immediate threat. :)

TIL that nm isn’t actually accepted as an abbreviation for nautical miles. (It’s used so commonly in aviation that I assumed it was correct and it took me 3 or 4 searches to accept that this thing I knew was correct actually wasn’t. Thanks [seriously]!)

[ Parent | on HN ]
Re:Missiles Are Now the Biggest Killer of Airline Passengers by coin on Friday December 27, 2024 @12:33PM (#42524137)
Same when people use “mhz” for megahertz
[ Parent | on HN ]