Category: Coronapanic

Towered airports reverting to uncontrolled fields

by philg

FAA Air Traffic Controllers have been there for us on Christmas, in the wee hours of boring weekdays, etc. Towers are shutting down, now, one by one, as coronaplague sweeps over the nation. Las Vegas, one of the world’s busiest airports (1500 operations per day), is no longer towered (US News). Here’s the NOTAM:

SVC TWR CLSD CTC LAS VEGAS APP CLR 125.9, CTAF 119.9 OR 725-600-7015. 19 MAR 17:44 2020 UNTIL 27 MAR 07:00 2020. CREATED: 19 MAR 17:44 2020

What happens when there is no control tower? That’s actually the normal condition at most U.S. airports, but not at airports where jets arrive on IFR flight plans every few minutes. AOPA publishes a good explanation of how pilots in radio-equipped aircraft (remember that some people fly antique airplanes with no electrical systems and no radios) are trained to do this. One key is broadcasting one’s intentions on the Common Traffic Advisory Frequency (CTAF). However, it is kind of a lost art among airline pilots, accustomed to talking to ground controller, tower controller, departure controller, center controller, …, center controller, approach controller, tower controller, ground controller.

Listen to the Vegas airplanes at liveatc.net (“KLAS Tower (Both)” and perhaps also the ATIS to see how the tower closure is conveyed via audio). Note that the tower frequency generally reverts to a CTAF whenever the tower is closed.

Chicago Midway, 670 operations per day, is in the same situation: liveatc.net to hear the Southwest 737 pilots self-announcing. The NOTAM, through April 18(!).

SVC TWR CLSD CLASS C SERVICE NOT AVBL CTC CHICAGO APP FOR IFR CLR 847-289-1326/READY FOR TKOF FREQ 119.45/IFR CANCELLATION FREQ 119.45. 19 MAR 01:42 2020 UNTIL 18 APR 23:59 2020. CREATED: 19 MAR 01:42 2020

Uncontrolled airports can be pretty busy and can handle quite a few flights as pilots separate themselves. But this depends on (1) planes being light enough not to interfere with each other via wake turbulence, and (2) aircraft not coming in and departing under instrument flight rules (IFR) in which only one plane can use the airport at a time. (The Approach controllers can’t guarantee separation if they authorize one airplane to take off and one to arrive, for example.)

[I did this exactly once during my brief airline career, flying regional jets for Delta. We were delayed for hours out of JFK (also on the potential list for a tower shutdown) by thunderstorms and the usual JFK afternoon/evening “international push”. A heavy Airbus to Europe gets priority over a regional jet to Burlington, Vermont. Currently, KBTV Tower is open 5:30 am to midnight. I don’t remember exactly when we arrived, but it was after Tower was closed and therefore we had to turn on the runway and taxiway lights ourselves (5 clicks on the microphone to activate “pilot-controlled lighting”), announce our position to other traffic (a bizjet landed shortly before we did), fly the visual approach (maneuver the plane by looking out the window), and look out for anyone else who might be on the taxiways.]

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Dogs profiting from Coronavirus and also yielding a profit for owners

by philg

Under the principle of cui bono we should suspect our canine companions of spreading coronavirus. The whole family is home all the time and formerly house-imprisoned dogs are getting walked six times a day.

A Spanish friend says that in her country the benefits are flowing in the other direction as well. A tail of coronaplague canine commerce: “It is illegal to go outside unless you have a dog, so people are renting their dogs for 100 euro.”

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Bad news and worse news on coronavirus

by philg

Bad news if you’re unhealthy: “99% of Those Who Died From Virus Had Other Illness, Italy Says” (Bloomberg):

More than 99% of Italy’s coronavirus fatalities were people who suffered from previous medical conditions, according to a study by the country’s national health authority.

The Rome-based institute has examined medical records of about 18% of the country’s coronavirus fatalities, finding that just three victims, or 0.8% of the total, had no previous pathology. Almost half of the victims suffered from at least three prior illnesses and about a fourth had either one or two previous conditions.

More than 75% had high blood pressure, about 35% had diabetes and a third suffered from heart disease. … All of Italy’s victims under 40 have been males with serious existing medical conditions.

And now for the worse news… (for everyone)

My personal prayer has been that coronavirus will have a tough time surviving heat and humidity, as suggested by “High Temperature and High Humidity Reduce the Transmission of COVID-19” (a Chinese team). Rain on this parade: “Florida coronavirus cases jump by nearly 100, multiple new cases in Central Florida”. Highs are in the 80s right now in Orlando.

Readers: What do you think? If the coronavirus is spreading in the Florida heat and humidity, what hope is there for a summer slowdown in the rest of the country?

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