A350-1000 and other Fleet News
10-20-2024, 09:19 PM
#3362
Gets Weekends Off
Joined APC: Apr 2020
Posts: 2,468
I did my first flaps 25 landing in 717 a few days ago. Captain did his first on his leg as well. Both landings were some of the smoothest we had in some time. Maybe because we were trying so hard to not screw it up?
As for brake wear... VAPP is not much higher than flaps 40. There's not THAT much extra energy to dissapate before a turnoff. That said, I do think the biggest difference in braking required comes down to how much longer it takes to get the nosewheel down (thus reversers deployed). The higher pitch attitude does require an extra second or 2 before the nosewheel comes down without slamming it down.
As for brake wear... VAPP is not much higher than flaps 40. There's not THAT much extra energy to dissapate before a turnoff. That said, I do think the biggest difference in braking required comes down to how much longer it takes to get the nosewheel down (thus reversers deployed). The higher pitch attitude does require an extra second or 2 before the nosewheel comes down without slamming it down.
10-21-2024, 04:03 AM
#3363
Gets Weekends Off
Joined APC: Apr 2016
Position: Looking left
Posts: 3,418
Lol…no thanks. Thats what the autobrakes are for…let me be clear…
I DO NOT CARE ABOUT FUEL SAVINGS. I care about safety.
Reverse work better in high speed, not low speed. The problem is not the autobrakes, is the pilots NOT knowing how to use the auto brakes. Hence, your LCA advise is not as good as he believe it is.
I DO NOT CARE ABOUT FUEL SAVINGS. I care about safety.
Reverse work better in high speed, not low speed. The problem is not the autobrakes, is the pilots NOT knowing how to use the auto brakes. Hence, your LCA advise is not as good as he believe it is.
Except this doesn’t work with carbon-carbon brakes.
1/2mv^2…for each brake application regardless of duration or intensity. Something something physics.
https://code7700.com/pdfs/carbon_brakes_airbus.pdf
1/2mv^2…for each brake application regardless of duration or intensity. Something something physics.
https://code7700.com/pdfs/carbon_brakes_airbus.pdf
10-21-2024, 09:09 AM
#3364
Gets Weekends Off
Joined APC: Feb 2008
Posts: 19,689
There were so many hard landings on the 727 with flaps 40 that they put a bolt into the flap quadrant to prevent even moving the handle to the 40 detent.
10-21-2024, 09:32 AM
#3365
Gets Weekends Off
Joined APC: Jan 2018
Posts: 310
The look on his face when I didn't to his 3/Medium tech-cesdure on my leg was priceless. The fact he is a LCP surprises me. He is a known entitiy amongst the FO's....one of the "4 horsemen" of the avoid list (4 horeseman are down to 3...one of them disapeared off the SIL about a month ago).
10-21-2024, 09:43 AM
#3366
Gets Weekends Off
Thread Starter
Joined APC: Dec 2007
Posts: 5,657
10-21-2024, 01:53 PM
#3367
Gets Weekends Off
Joined APC: Oct 2021
Posts: 241
I wonder if it has to do with the deck angle and the orientation of the shock struts. Just those few extra degrees might encourage the strut to compress more when absorbing the initial wheel spinup since it's less perpendicular to the runway.
10-21-2024, 04:40 PM
#3368
Gets Weekends Off
Joined APC: Oct 2017
Position: 737 A
Posts: 1,068
As for the 727 I was told that the block off of the flaps was to do with noise reduction. Probably needed those few extra % N1 to maintain glide slope and that caused an issue. I think this was part of the “FedEx hush kit” that was installed on the ones I was around in a previous life.
10-22-2024, 05:53 AM
#3369
Gets Weekends Off
Joined APC: Apr 2011
Position: retired 767(dl)
Posts: 5,761
I think the 737 flaps 30-40 hard landings are more to do with practice than anything. Many of our pilots never use anything other than 30.
As for the 727 I was told that the block off of the flaps was to do with noise reduction. Probably needed those few extra % N1 to maintain glide slope and that caused an issue. I think this was part of the “FedEx hush kit” that was installed on the ones I was around in a previous life.
As for the 727 I was told that the block off of the flaps was to do with noise reduction. Probably needed those few extra % N1 to maintain glide slope and that caused an issue. I think this was part of the “FedEx hush kit” that was installed on the ones I was around in a previous life.
10-22-2024, 06:15 AM
#3370
Gets Weekends Off
Joined APC: Sep 2023
Posts: 102
Sidebar: Not much gain in lift at anything over 25 to 28 (3), the higher approach speed is just a targeted deck angle or tail strike mitigation.
