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Old 01-15-2024, 10:16 AM
  #2261  
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Originally Posted by saturn
Yeah I'm sure a pilot would. LCP would be like WTF he do that for? I see no need to ever do it. But just for outside the box discussion..10ft is within tolerance, and you've been given clearance to descend at your discretion...no rules broken. Yet every pilot I see on a 321 selects 205kts instead of 210 when assigned by ATC so they can get to flaps 2. I see nowhere mentioning this technique either, cuz well you can't intentionally tell people to violate a clearence in writting. I like it though, just don't tell ATC 😀🫢
You’re not even violating a clearance in that situation either. If you’re within 10 knots of an assigned speed, you’re in compliance (AIM 4-4-12.c).
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Old 01-15-2024, 10:18 AM
  #2262  
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Originally Posted by ancman
You’re not even violating a clearance in that situation either. If you’re within 10 knots of an assigned speed, you’re in compliance (AIM 4-4-12.c).
Some of the mighty Boeings slow to 240 below 10 for some comical, asinine, high theory reason...
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Old 01-15-2024, 10:19 AM
  #2263  
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Originally Posted by Gunfighter
The point is demonstrating superior FMS programming skills as opposed to actually being functional.
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​​​​​Using your "technique that is better" is one way to guarantee engagement of the PM.
I've learned more techniques (good and bad) by holding my tougue to see if it's gonna work. Sometimes we outsmart ourselves. If you're in compliance, then you're in compliance. I'm always looking for an easier easy button. You get free rein until you scare me.
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Old 01-15-2024, 10:25 AM
  #2264  
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Originally Posted by gloopy
Some of the mighty Boeings slow to 240 below 10 for some comical, asinine, high theory reason...
When I was on the 7ER, I remember reading a company publication that said it was acceptable to let the default speed of 240 remain in place when assigned 250 below 10.

I always thought that was pushing it just a bit, as it was easy for the autopilot to get into the 230’s when left at 240.
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Old 01-15-2024, 10:30 AM
  #2265  
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Originally Posted by ancman
When I was on the 7ER, I remember reading a company publication that said it was acceptable to let the default speed of 240 remain in place when assigned 250 below 10.

I always thought that was pushing it just a bit, as it was easy for the autopilot to get into the 230’s when left at 240.
I just tried to remember to overwrite it if trying to VNAV to the feather. Opening the window works too, just had to be careful of SPD vs Path protections.
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Old 01-15-2024, 10:31 AM
  #2266  
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Originally Posted by ancman
When I was on the 7ER, I remember reading a company publication that said it was acceptable to let the default speed of 240 remain in place when assigned 250 below 10.

I always thought that was pushing it just a bit, as it was easy for the autopilot to get into the 230’s when left at 240.
ATC doesn't necessarily find that acceptible in some places.
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Old 01-15-2024, 11:15 AM
  #2267  
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Originally Posted by Tinpusher007
ATC doesn't necessarily find that acceptible in some places.
like JFK. Which is where half the damn airplanes go lol
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Old 01-15-2024, 11:49 AM
  #2268  
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Originally Posted by saturn
OOfff did you see the 330 fleet newsletter for Oct? Lol. Might wanna tell the standards team over there in your best Val Kilmer/Ice Man: "you're dangerous".
Because the Newsletter indicates it's a possible due to an FMS software update the narrowbody fleet doesn't have. This allows 330 to automatically descend at the 1,000 fpm managed descent rate until intercepting the idle descent path. If you build the PBD 10 ft below your CRZ alt on the 320, you've wasted that initial segment idle descent in those 10 ft you used to trick the FMS. So, now from your PBD to the next fix it'll be a geometric path which will burn more fuel unnecessarily. So, it's not quite the same.
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Old 01-15-2024, 12:15 PM
  #2269  
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Originally Posted by gloopy
Some of the mighty Boeings slow to 240 below 10 for some comical, asinine, high theory reason...
Yup. This is so stupid and nobody has offered a good reason.
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Old 01-15-2024, 12:21 PM
  #2270  
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Originally Posted by Meme In Command
Because the Newsletter indicates it's a possible due to an FMS software update the narrowbody fleet doesn't have. This allows 330 to automatically descend at the 1,000 fpm managed descent rate until intercepting the idle descent path. If you build the PBD 10 ft below your CRZ alt on the 320, you've wasted that initial segment idle descent in those 10 ft you used to trick the FMS. So, now from your PBD to the next fix it'll be a geometric path which will burn more fuel unnecessarily. So, it's not quite the same.

320 LCPs don’t advocate it bc it’s so much more work and higher threat if you input it all wrong vs simply PAYING ATTENTION and Pressing managed descent 5-10 prior TOD.

The entire exercise mentioned in prior posts is for lazy PFs who don’t want to actually attention.
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