Following up on last week, Ask the Pilot weighs in on exactly why the heat in Phoenix is grounding airplanes:
Extreme heat affects planes in a few different ways. First, there are aerodynamic repercussions. Hotter air is less dense than cooler air, so a wing produces less lift. This is compounded by reduced engine output. Jet engines don’t like low-density air either, and don’t perform as well in hot weather. Together, this means higher takeoff and landing speeds — which, in turn, increases the amount of required runway. Rates of climb are also impeded. Performance parameters require that a plane be able to climb away safely following an engine failure, and this might not be possible. Engines also are subject to internal temperature limits — exhaust gas temps, etc. — beyond which operation isn’t permitted. When it’s really hot outside these limits are easier to exceed.
Then you’ve got the simpler, more tangible effects: overheating electronics, increased brake temperatures, cabin cooling issues, and so on. Airplanes have a lot of internal machinery, and much of it runs hot to begin with. Throw in triple-digit temperatures, and things begin to break down. And let’s not forget the effects on ground support equipment and, of course, the people working outside.
It's currently a balmy 39°C in Phoenix. That's almost tolerable, with enough air conditioning.
Phoenix hit a record high temperature yesterday of 48°C, and it's already that hot again today. And right now, it's 50°C in Needles, Calif. In fact, it's too hot for airplanes to take off:
As the Capital Weather Gang reported, the Southwest is experiencing its worst heat wave in decades. Excessive heat warnings have been in effect from Arizona to California and will be for the remainder of the week.
And it was so hot that dozens of flights have been canceled this week at Phoenix Sky Harbor International Airport.
American Airlines alerted its customers over the weekend, offering fee-free changes to upcoming flights that were departing or arriving at Phoenix between 3 and 6 p.m., when temperatures peak.
Regional flights on American Eagle were the most affected, because they use Bombardier CRJ planes that can only operate at temperatures of 48°C or below, Feinstein said. Flights on larger Airbus and Boeing planes were not canceled because they are able to operate at higher maximum temperatures: 52.7°C for Airbus and 52.2°C for Boeing.
Meanwhile, a cold front has come through Chicago, dropping the temperature to 18°C at O'Hare around 2pm. And I'm about to walk home in it.
Chicago opened its first elevated train 125 years ago tomorrow, on 6 June 1892:
On June 6, 1892, 125 years ago this week, the first elevated line called the "Alley L" opened for business, running from Congress Parkway and State Street to 39th Street, along the alley, behind and around buildings and through backyards, said Graham Garfield, CTA general manager of customer information and unofficial agency historian.
It was a novel way to travel — above the streets and eye-level to people's second- and third-floor windows. Garfield said some residents along the path may have forgotten that the train was coming that first day and had to quickly draw the curtains to protect their privacy, while others gathered on back porches to watch the smoky, steam-powered "L" go by.
The wooden train, run by the private Chicago and South Side Rapid Transit Railroad Co. along what is now the Green Line, was popular and crowded from the start. And along with other north, south and west sections of the "L" built over the next 10 years, it helped to both expand the city and create its character... The combined subway and elevated system now has 224.1 miles of track and sees more than a million riders daily.
The first elevated train anywhere—which still exists, to some extent—ran from London Bridge to Greenwich and opened in 1836.
Paul Allen has funded development of an airplane designed to launch satellites into space. It's...huge:
Called Stratolaunch, the plane has some impressive stats: a wingspan of 117 m, or longer than a football field, and a height of 15.24 m. Unfueled, it weighs 226,800 kg. But it can carry 113,400 kg of fuel, and its total weight can reach 590 tonnes.
But, really ... how big is it? It’s so big that it has 28 wheels and six 747 jet engines. It’s so big that it has 96 km of wire coursing through it. It’s so big that the county had to issue special construction permits just for the construction scaffolding.
But why is Allen, the co-founder of Microsoft and owner of the Seattle Seahawks, building such a massive plane?
It’s not to carry passengers, but rather rockets. The bigger the plane, the larger the rockets, or the greater the number.
The Post has video. That is a very large airplane indeed:
By Giant_planes_comparison.svg: Clem Tillier (clem AT tillier.net) White_Knight_Two_planform.png: Mwarren us derivative work: Mwarren us (talk) - White_Knight_Two_planform.pngGiant_planes_comparison.svg, CC BY-SA 3.0, Link
British Airways cancelled all of its flights out of its two biggest hubs in London today because of a power-supply failure:
The airline hoped to be able to operate some long haul inbound flights on Saturday, landing in London on Sunday, Mr Cruz added.
The GMB union has suggested the failure could have been avoided, had the airline not outsourced its IT work.
BA refuted the claim, saying: "We would never compromise the integrity and security of our IT systems".
All passengers affected by the failure - which coincides with the first weekend of the half-term holiday for many in the UK - will be offered the option of rescheduling or a refund.
The airline, which had previously said flights would be cancelled until 18:00 BST, has now cancelled all flights for Saturday and asked passengers not to come to Gatwick or Heathrow airports.
Some things never change.
It turns out, the King of the Netherlands has an air transport pilot certificate:
King Willem-Alexander, reigning monarch of the Netherlands, revealed in an interview with Dutch newspaper De Telegraaf that he'd regularly flown flights for a subsidiary of the Dutch flag carrier for over two decades.
Calling the part-time role a "hobby," the King says that he'd taken to the cockpit as a co-pilot of KLM Cityhopper -- the airline's short-haul carrier -- flights for over 21 years.
Being the co-pilot also allowed him to retain his anonymity, even while addressing the passengers, he said.
"The advantage is that I can always say that I wish everyone a heartfelt welcome in the name of the captain and the crew," he told De Telegraaf. "So I don't have to say my own name. But most of the (passengers) don't listen anyway."
That's kind of cool.
Despite his initial skepticism, Crain's Greg Hinz sees the value:
Ponder for a moment what $200 million can accomplish, even in government, and even at a time when money isn't worth what it used to be.
Two hundred million dollars would pretty much fill the hole in the Chicago Public Schools budget, the one that had officials threatening to end school three weeks early. Two hundred million dollars would completely pay for the budget of the city Department of Streets & Sanitation for a year (with $50 million left over), or provide not one but two years of subsidies to keep Cook County's hospital and health clinics up and running.
So is the Chicago Transit Authority doing the right thing by spending $203 million, to be exact, to rebuild just one el stop, the hoary Wilson Avenue station on the Red Line in Uptown? Are taxpayers really getting a good deal?
"It's not a station—it's a station with a bridge," replies Chris Bushell, the CTA's chief technology officer. And the century-old bridge, which runs a half-mile, not only had to be replaced from the ground up, it had to be kept in operation while hundreds of Red and Purple Line trains trundled by with more than 75 million people a year.
The project should be finished this fall, just as another huge infrastructure project gets underway on the other side of Uptown.
...this will do splendidly:
A new long-distance train, the East Japan Railway Company’s Shiki-Shima, launched this week, and it’s already earning praise as perhaps the most luxurious train in the world. Its 10 cars hold 17 spacious suites, some kitted out with cypress bathtubs and lofts. And that’s not the only thing that makes it feel like a five-star hotel: This train also sports a piano bar, two glass-walled observatory cars, and even a Michelin-accredited restaurant.
It holds up to 34 passengers, who are squired around eastern Japan for two to four days, paying anywhere between $3,000 and $10,000 for a round-trip ticket.
CGTN has a video review:
This weekend, a "luxury" festival on a remote island in the Bahamas failed to live up to expectations, in the same way bricks fail to hover:
The organizers of the Fyre Festival promised “two transformative weekends” on a “remote and private” island in the Bahamas that was “once owned by Pablo Escobar.” Kendall Jenner promoted it on Instagram. Ja Rule was one of the organizers. Festival-goers paid thousands of dollars for what they believed was going to be a luxury experience. Anyone who could afford the ticket would arrive in paradise on a private jet with their friends, for a taste of the lifestyle that only seems to exist on the Instagram feeds of models.
None of that happened.
The first wave of paying guests arrived on Thursday, only to find themselves staring at a chaotic festival site that appeared to be weeks away from being able to host anyone. Blink-182, one of the bands headlining the festival, had canceled at the last minute. The tents that were set up for guests to sleep in looked like “FEMA tents,” one person said. Not exactly the luxury accommodations they’d paid for. Meanwhile some tents were still in their boxes.
The disorder at Fyre Festival appears to have caught a lot of the attendees off guard. But there were signs that all was not what it seemed. In early April, the Wall Street Journal reported that festival organizers had missed a series of deadlines, including those for paying artists.
Whew, the next time I have the opportunity to pay $250,000 for a trip to a desert island, I'll jump on it.
The festival organizers have posted an explanation.
Things to read today:
And finally, the Chicago Tribune has an article on our concert this weekend, and composer Jeff Beal performing in it:
"I suppose it might have been DNA asserting itself," said Beal, who will be in Chicago May 5 and Evanston May 7 when the celebrated Apollo Chorus includes his "The Salvage Men" and "Poor in Spirit" as part of their 145th-season-ending spring concert, "American Masters," in Chicago and Evanston. "It's true that [my grandmother] passed on her love of improvisation, but there's also something almost eerily similar about what she did, watching a screen and creating her own musical accompaniment, and what I do in my day job."
[H]e had been diagnosed with multiple sclerosis in 2007. Though he took seven years to process the news before beginning to write "The Salvage Men" in 2014.
Serendipitously, that was about the time that Apollo Chorus music director Stephen Alltop, who studied with Beal at Eastman, got back in touch to praise Beal's work on" House of Cards" and suggest the possibility of doing a concert together. Which explains why Beal and his new choral works are appearing in Chicago directly after their debuts in London and Los Angeles. Beal also will perform solo trumpet over the comparatively simple text of his "Poor in Spirit," — it consists entirely of one repeated phrase from the Beatitudes: "Blessed are the poor in spirit" — much as he often plays trumpet over the score of "House of Cards."
Tickets are available through the Apollo Chorus website. It's going to be an amazing concert.