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[–] 19971201? [S] ago 

So the question is, why would DHS warn about this?

https://www.us-cert.gov/ics/alerts/ics-alert-19-211-01

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[–] 19971458? ago 

Because some smaller acft are commercial. They carry passangers,etc. And....if you look at this:

http://www.sierracharlieaviation.com/sites/default/files/IMG_0561.JPG

You can see. A great many pilots are buying newer models and they ALL have glass cockpits. But its not like the "Heavy's" which use a MCAS computer. A lot of pilots are however installing garmin equipment in their older birds also trying to take advantage of sat. Gps. The garmin ties into the autopilot which governs flight controls ONLY, not power aka throttle. People are getting lazy and letting the tech do the flying. To override, Note, pull the breaker and fly manually and you can control the acft. Remember on gen. Aviation there is no MCAS.

Use to be we used radio signals to navagate....aka VOR.

VHF omnidirectional range

Very High Frequency Omni-Directional Range is a type of short-range radio navigation system for aircraft, enabling aircraft with a receiving unit to determine their position and stay on course by receiving radio signals transmitted by a network of fixed ground radio beacons. It uses frequencies in the very high frequency band from 108.00 to 117.95 MHz. Developed in the United States beginning in 1937 and deployed by 1946, VOR is the standard air navigational system in the world, used by both commercial and general aviation. By 2000 there were about 3,000 VOR stations around the world including 1,033 in the US, reduced to 967 by 2013 with more stations being decommissioned with the widespread adoption of GPS.Wikipedia

If you are interested

https://m.wikihow.com/Navigate-Using-a-VOR

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[–] 19971572? [S] 0 points 1 point (+1|-0) ago 

Thank you.