Comment by firesteelrain
8 months ago
Listen-only mode would be ADS-B In. Black Hawk's support ADS-B Out.
1. C-17 Globemaster III (transport)
2. C-130 Hercules (transport)
3. KC-135 Stratotanker (tanker)
4. KC-10 Extender (tanker)
5. P-8 Poseidon (maritime patrol/reconnaissance)
6. E-3 Sentry (AWACS)
7. E-8 Joint STARS (reconnaissance)
^ above have ADS-B In capability
This answer on Aviation Stack Exchange did some research into ADS-B statistics for military aircraft: https://aviation.stackexchange.com/questions/107851/military...
TCAS (collision avoidance) can use Mode A/C/S however it depends on if the aircraft has the earlier or later model TCAS: https://aviation.stackexchange.com/questions/90356/does-tcas...
They'll all have both in and out capability. (It's typically the same device.)
Military aircraft have permission from the FAA to turn off one, or both, for fairly obvious reasons. https://nbaa.org/aircraft-operations/communications-navigati...
I don't think the Black Hawk can support ADS-B In and usually its the surveillance type aircraft that carry it. I updated my post above. There is limited cockpit space in Black Hawks anyways. There might be a specific modernization occurring for a variant of UH-60 that has ADS-B IN, but vast majority do not.
Every aircraft in controlled airspace is required to have ADS-B transponders, and any aircraft with Out has In as well (In is the easy one; it just listens; you can even build your own with a Raspberry Pi - https://www.flightaware.com/adsb/piaware/build/ and a $36 receiver https://flightaware.store/products/pro-stick). You can buy a portable ADS-B In receiver the size of a wallet for $400 and get traffic alerts on an iPad. https://flywithsentry.com/buy
My dad's little four seat hobby plane has both In/Out. You can track him on FlightAware as a result, because it's continually broadcasting its location; it's certainly not rare or sophisticated equipment.
Here's a military Blackhawk toodling around as we speak: https://globe.adsbexchange.com/?icao=ae27fc
https://www.avweb.com/aviation-news/blackhawk-ads-b-was-off-...
> The Army Black Hawk helicopter crew involved in the midair collision with an American Eagle CRJ700 last January at Reagan National Airport had turned off ADS-B because they were practicing a classified flight profile, according to a New York Times investigation.
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