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Originally Posted by Gspeed
(Post 2721900)
It seems to me that the -900 is the new Mad Dog (i.e. The Cloud Plow): it's typically too heavy to make it to anything above FL340/350, so it's constantly trucking around in the weather. What say you?
Sent from my SM-N950U using Tapatalk |
Originally Posted by ShyGuy
(Post 2722042)
Why was it 10 knots slow to begin with? Don’t be the guy who does managed descent say at 280 but with the window margin of +/- 20 kts each side, the speed goes to 260 and you do nothing. Of course the power will firewall at level off to go back to 280. Or you could be a pilot and pulled speed 280 to avoid this crap to begin with. I’ve noticed most of the criticism on the Bus is when guys sit back and let the thing do something without having intervened and done what they wanted it to do. 99.9% of the time the plane did exactly what you had told it do, most likely you didn’t mean it to do that.
(Selected speed, activate approach, higher altitude in CRZ on PROG page, manage speed. When out of waves, 1 in CRZ on PROG page) Also selected speed on the STAR is frowned upon because it leads to speed errors on the arrival according to the SOPs at NK. |
Originally Posted by symbian simian
(Post 2722050)
Altcrz. Especially our older 319s. Will let the speed drop 10 knots, tries to correct by descending 50 feet, sit there for 2 minutes and suddenly go full climb power to get back to ATP standards. Does the same on the other end, 10 knots fast, 50 feet high, 2 minutes later open descend. Does help with staying awake on the redeye.
(Selected speed, activate approach, higher altitude in CRZ on PROG page, manage speed. When out of waves, 1 in CRZ on PROG page) Also selected speed on the STAR is frowned upon because it leads to speed errors on the arrival according to the SOPs at NK. As for the ALT CRZ soft cruise mode, +/- 50 ft is normal but I rarely see +/- 10 knots. Could be an old plane/different/older FMS box version. |
The 319s and 320s do a good job staying on speed for the most part in DES. Sometimes they do seem to fall asleep in cruise.
The 321s... they are a bit more slick than the FMS thinks and normally end up at the top of the bracket. Going selected speed (that is what it is called, Shy. :cool: ) will hose you even worse as the plane will float up and off the path. Just leave it in managed speed and use the boards as need be. The only primary rule of thumb I use is to not have managed speed be more than 330... she'll end up at 340 anyways. The 319 and 320 are perfectly happy with 340 being the programmed speed. Also, if it ends up low in the bracket on the DES, just slap the TLs to idle to turn off the A/THR. Ease them up to bring the speed back into the bracket. Once happily back on speed, re-engage A/THR and place them back in the detent. Much smoother than going selected speed. Airbus scary. Bid the 737. |
321s slicker than the FMS thinks. That’s terrifying. And we’re getting more of these things. Think of how stressed you will be on every leg......😳
VNAV descents in the 737 are SOOOOO much better. Set it and forget it.😜 |
Originally Posted by 80ktsClamp
(Post 2722347)
The 321s... they are a bit more slick than the FMS thinks and normally end up at the top of the bracket. |
Originally Posted by Silver02ex
(Post 2722373)
Especially when there's 228 PAX on hot day, going into SAN after i'm told "keep the speed up"
Spirit or Frontier??? |
Originally Posted by 80ktsClamp
(Post 2722347)
The 319s and 320s do a good job staying on speed for the most part in DES. Sometimes they do seem to fall asleep in cruise.
The 321s... they are a bit more slick than the FMS thinks and normally end up at the top of the bracket. Going selected speed (that is what it is called, Shy. :cool: ) will hose you even worse as the plane will float up and off the path. Just leave it in managed speed and use the boards as need be. The only primary rule of thumb I use is to not have managed speed be more than 330... she'll end up at 340 anyways. The 319 and 320 are perfectly happy with 340 being the programmed speed. Airbus scary. Bid the 737. If the speed is at the top of the bracket, pulling speed (yeah I said it :cool:) is going to hose you because the aircraft will go above descent path to back to the selected speed of 280. It doesn't make sense to do that. Also, if it ends up low in the bracket on the DES, just slap the TLs to idle to turn off the A/THR. Ease them up to bring the speed back into the bracket. Once happily back on speed, re-engage A/THR and place them back in the detent. Much smoother than going selected speed. Like most things though, there are many ways to skin a cat. |
737s have the auto-wakep mode for descent. If the crew is asleep and the aircraft starts down at TOD, it's very likely to overspeed itself and wake you with the clacker.
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As Bar said, 320 hard to learn and easy to use.
And as everyone else said, it's your average run-of-the-mill death trap: https://i.imgur.com/d7qzhct.gif |
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