Posted on 02/25/2019 1:14:29 AM PST by DollyCali
Welcome all you Deplorables to this week's edition of the Dose!
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A-A HISTORY MONTH
and White House Gathering for same 2-22-19
Some of the GOOD GUYS & GALS this past week
The first couple welcome the Governors and wives
for an evening event. 2/24/19
Keep the Truth coming Mr. President
Keep on Tweeting!
From JIM/freepathon
And now less than $1,4k to go!! We can do this.
Woooooo Hooooot
#3034 and # 3035 up, do not know if it has been posted.
Two Q up
https://forum.quartertothree.com/t/the-general-aviation-thread/141070/12
Three FCC functions have been deployed to the 737 that are active while the pilot is flying manually.
1.Mach Trim
2.Speed Trim System (STS)
3.Maneuver Characteristics Augmentation System, MCAS (737 MAX only)
Mach Trim
As the speed of the airplane increases, the nose starts to drop. This is called mach tuck. When the airplane airspeed is more than mach 0.615, the mach trim function gives an up elevator to keep the nose of the airplane level. This function operates with or without the autopilot engaged or the flight director on.
Speed Trim
When the engine thrust is high and the airspeed is low, the speed trim function keeps the speed set by the pilots with commands to the horizontal stabilizer. This function primarily occurs during takeoff and only operates when the autopilots are not engaged. The flight directors may be on or off.
MCAS
MCAS (Maneuvering Characteristics Augmentation System) is implemented on the 737 MAX to enhance pitch characteristics with flaps UP and at elevated angles of attack.
The MCAS function commands nose down stabilizer to enhance pitch characteristics during steep turns with elevated load factors and during flaps up flight at airspeeds approaching stall.
MCAS is activated without pilot input and only operates in manual, flaps up flight.
The system is designed to allow the flight crew to use column trim switch or stabilizer aisle stand cutout switches to override MCAS input.
The function is commanded by the Flight Control computer using input data from sensors and other airplane systems.
The MCAS function becomes active when the airplane Angle of Attack exceeds a threshold based on airspeed and altitude. Stabilizer incremental commands are limited to 2.5 degrees and are provided at a rate of 0.27 degrees per second.
The magnitude of the stabilizer input is lower at high Mach number and greater at low Mach numbers.
The function is reset once angle of attack falls below the Angle of Attack threshold or if manual stabilizer commands are provided by the flight crew
If the original elevated AOA condition persists, the MCAS function commands another incremental stabilizer nose down command according to current aircraft Mach number at actuation.
The first two, Mach trim and Speed Trim, do things that are relatively easy to understand in plain (plane?) English: they keep what the pilot is trying to do happening behind the scenes.
The third, the MCAS which is only on the 737 MAX, tries to compensate for ascents that could cause a stall by angling the nose down and accelerating, also without the pilots intervention.
The concerns I saw was that not only is this not documented, but that while direct intervention from the pilot of the MCAS kicks in will override the MCAS, it doesnt disable it, so the pilot may be basically fighting the system if theyre doing a climb, it kicks in and starts to angle the plane down, the pilot pulls it back up, but its still in the conditions that would cause it to activate again. So thats extra terrible if the pilot doesnt know what is happening or why.
Anyway, I havent read the link Skipper posted in the time I spent composing this, I bet its more concise and better explained than my third-hand retelling, but Im definitely fascinated by this thing I didnt know existed 24 hours ago.
*****************************************
Skipper...
Skipper
21h
MCAS surely sounds like the culprit, again, though it will be a while before they announce anything. In the meantime, Ive always wondered what happens to airlines when there is a major event for a specific aircraft type like this. Do the sue the maker? Especially so in this case with it being so soon from the manufacturing date?
What is MCAS
I think what makes it worse is I read somewhere that the first jet went through a period of up/down pitch, so either they were fighting it, or it was very seriously malfunctioning. Either way is no bueno.
FBI Boston should arrest all of Hollywood and friends and then weed them out.
Good job FBI!
ROFL, I started laughing, then choking, reading your post.
She is thinking of it, big discussion on enemy channel.
That is the perfect breakfast!
I am trying to catch up on the thread but I never make it. Is there anything exciting happening that I should know about?
@FLOTUS 4m4 minutes ago
While you may never personally become addicted, the chances of knowing someone who struggles with it are high. If you, or someone you know needs help, please be brave enough to ask, or strong enough to stand with them as they fight through the disease.
Yes, very good job FBI.
“Felicity Huffman, Lori Loughlin among actresses, CEOs charged in alleged college admissions scam”
https://abc11.com/actresses-ceos-charged-in-alleged-college-admissions-scam/5186103/
Paul Ryan: Trump Will Lose in 2020 if Campaign About His Personality
I don’t have time to read, b saw this:
EXCLUSIVE: Transcripts of Lisa Pages Closed-Door Testimonies Provide New Revelations in Spygate Scandal
Good morning, Spunky.
With all the rain we got all night long and this morning, it is now sort of snowing, will continue tomorrow.
You really have had a long hard winter.
Anything EXCITING happening?
Nasty is having a hard time with her young renegades, so fun to watch.
Ohr’s testimony before the Congress was released last Friday, contradicted RR and McCabe.
Cohen testified again and lied some more, no shock.
Cummings referred him to the DOJ for perjury.
Now just patiently waiting for the Mueller Report so we can get on with the declass.
Smoke and Mirrors https://t.co/W3hpib7cud— Joni Job (@jj_talking) March 12, 2019
Paul who?
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