Missing Traffic

There might be an inaccuracy in your excellent article, "Time to Bite the Bullet?" in the June 2015 issue.We all agree that ADS-B In (TIS-B traffic data and FIS-B weather information) is provided by ADS-B ground stations and received by 978 MHz UAT receivers, through certified/installed and/or portable units. The TIS-B traffic data is rebroadcast from the ADS-B ground stations and shows the same traffic a radar controller sees (except for primary targets), so there is no difference whether the aircraft position is transmitted to the ground through a 1090 MHz extended squitter transponder or through UAT-Out 978 MHz transceiver.

Key Takeaways:

• ADS-B In (TIS-B) traffic information reliability is questionable for pilots without ADS-B Out, as a nearby ADS-B Out aircraft is required to "trigger" ground stations to rebroadcast traffic data, making it unreliable in less congested airspace.
• The FAA's medical certification process is criticized as bureaucratic and incompetent, with one pilot detailing a challenging experience to restore his certificate after a suspension.
• A correction clarifies that spin direction is determined by whether the aircraft is in a slipping or skidding turn when it stalls, not simply the direction of the lowered wing, with skidding stalls being particularly dangerous.

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