danaliv

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331.
by danaliv 8y ago
Aileron is normally used for crosswind takeoff Airbus crosswind takeoff recommendation is no lateral stick input. The sidestick is a rate controller, so a lateral deflection commands a roll, not a specific control surface position like on
332.
by danaliv 8y ago
The artificial horizon doesn't indicate angle of attack. Please see this comment: https://news.ycombinator.com/item?id=19638250 Or consider an aerobatic airplane at the first vertical point in a loop. The airplane&#x27
333.
by danaliv 8y ago
Good question. I don't think so but I can't tell for sure. They make pitot-static probes for Boeing and Airbus jets but I don't know if their AoA sensors are used in commercial aircraft.
334.
by danaliv 8y ago
Here's the directive: http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgad.nsf/... This isn't really a grounding, at least not the way the 737 MAX is grounded. Cirrus jets can't be flown until th
335.
by danaliv 8y ago
I've been typing since I was six or seven and I guess I just sorta picked up touch-typing. I was never taught how to type but I don't have to look at the keyboard. (Usually, that is. I switch between English and Icelandic layouts,
336.
by danaliv 8y ago
A very similar phenomenon happens in aviation—we call it complacency. Thousands of successful takeoffs in a row make it hard sometimes to remember that each one is a completely independent event. The way I fight it is by explicitly remindin
337.
by danaliv 8y ago
I’m not sure I follow. Unless they did something bananas with the design (which I admit is entirely possible given who designed it), the lift from the wings is transmitted to the rest of the aircraft through a spanwise spar(s). The fuselage
338.
by danaliv 8y ago
These are lovely! I might use this in some cartography work. Do these palettes take color blindness/accessibility into account? I looked around on the site (admittedly not thoroughly) but didn’t see this addressed.
339.
by danaliv 8y ago
Depends on the industry and the class of job. In software and white collar work in general it’s almost unheard of. Go farther down the class scale and it becomes very common.
340.
by danaliv 8y ago
Load factor is the number of Gs the aircraft structure is supporting. In unaccelerated flight it’s 1. Straight and level, an established climb, and an established descent are all unaccelerated. In a turn, an airplane experiences a higher lo
341.
by danaliv 8y ago
Every phone I've had in the last decade has come with GPS (which includes altitude), giros and even magnetic compasses. So they can work out the angle of attack without the need for additional sensors, or at the very least a backup!
342.
by danaliv 8y ago
I found that surprising too. I picture things in a space that's not even here. Where does that fit in? Here's the book that the quote is apparently from: https://books.google.com/books?id=dZyPAAAAQBAJ&lpg=PA52&
343.
by danaliv 8y ago
The drag/speed curve of an airplane is actually U-shaped. Parasitic drag does increase with speed, but induced drag—the drag that results from the production of lift—is highest at slow speeds. The combination of these two curves is a U
344.
by danaliv 8y ago
A Volvo XC90 is not "modest middle class." It's a luxury vehicle. And a car payment that high is insane.
345.
by danaliv 8y ago
Right, I get that, but the last automatic AND actually moved the stabilizer.
346.
by danaliv 8y ago
Am I mistaken or is there a missing item in the chronology where the pilots reactivated the electric stabilizer trim? The timeline mentions stab trim being switched to cutout, and if you look at the FDR graphs there's a (relatively) lo
347.
by danaliv 8y ago
> Both engines were found buried in the ground at a depth of approximately 10 meters. My God.
348.
by danaliv 8y ago
Sort of. All flights in U.S. territory, and by U.S. airlines anywhere in the world, are banned. Non-passenger flights can be authorized but they require either a Special Flight Permit (a specific process for authorizing ferry flights of any
349.
by danaliv 8y ago
That's a MAX 7. Only the MAX 8 and MAX 9 are grounded. See the FAA order here: https://www.faa.gov/news/updates/media/Emergency_Order.pdf > Effective immediately, this Order prohibits the operation o
350.
by danaliv 8y ago
Amazing how easily “the possibility of X is being investigated” turns into “X happened.”
351.
by danaliv 8y ago
Are you talking about a turn coordinator? That doesn't show "down." The sum of forces acting in a coordinated turn will keep the ball centered even though the airplane is banked. Also I'm not sure what you're talkin
352.
by danaliv 8y ago
Airplane compasses are indeed affected by the electrical system, but not so much as to make them unusable. A maintenance process known colloquially as "swinging the compass" involves turning on the electronics, positioning the air
353.
by danaliv 8y ago
All airplanes (or almost all? I'm sure someone will know of an exception) have compasses. But without data on wind direction and speed, a compass isn't much good over any appreciable distance. Once off the ground, an airplane is l
354.
by danaliv 8y ago
It’s literally just a metal plate that rotates with the oncoming air.
355.
by danaliv 8y ago
These crashes are captivating, especially given how astonishingly safe air travel has been in the past decade or so. If I remember correctly 2017 was the safest year in the history of aviation. And airplanes, particularly modern jets, are f
356.
by danaliv 8y ago
No, but it will have the ocean on top of it!
357.
by danaliv 8y ago
You're absolutely right, but the issue isn't what an aircraft autopilot actually is. It's what the word "autopilot" evokes in the minds of the non-pilot public. To them, autopilot means fully automated with no overs
358.
by danaliv 8y ago
Do read the fine article for the details: But the study did not tell the whole story of women at Google or in the technology industry more broadly, something that company officials acknowledged. Most significantly, it did not address ing
359.
by danaliv 8y ago
75% is a big waste of fuel if you’re trying to cross an ocean. Maximum range is achieved at Vg. I’m told maximum endurance can be had at 76% of Vg, though I haven’t checked the math on that myself so don’t quote me on it. :) There’s another
360.
by danaliv 8y ago
This was done during treatment so the "shutter" was the LINAC itself.

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