What vertical mode do you use in the climb?
11-23-2012, 08:03 AM
#51
Gets Weekends Off
Joined APC: Feb 2007
Position: Forever commuting
Posts: 161
Originally Posted by DirectTo
Have you flown with a certain EWR captain, FFDO, who likes to use IAS mode and major power changes for descent, so the "passengers can feel the descent"?
Damn guy also cruised at 60% torque on the way home after I told him I was trying to make a flight. Sorry buddy, I don't give a damn about block or better on the last flight back.
Damn guy also cruised at 60% torque on the way home after I told him I was trying to make a flight. Sorry buddy, I don't give a damn about block or better on the last flight back.
11-26-2012, 10:44 AM
#53
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Joined APC: Nov 2012
Position: 1900D CA
Posts: 3,394
The autopilot int the Brasilia gives a much smoother ride while it tries to maintain a constant pitch attitude. When you put the FD/AP in VS or IAS mode it seems to chase its own tail. I like to hold a constant airspeed myself
12-08-2012, 04:56 AM
#54
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Joined APC: Dec 2012
Position: B756 captain
Posts: 102
In the B756 series, FLCH moderates the climb/descent rate based on how far the selected altitude is from the current altitude. If memory serves, it is either less than 4000' or less than 2500' where the moderating takes place. Beyond that, it is full/idle power. VNAV does whatever it takes to stay on its profile in VNAV Path, and to stay on the speed in VNAV speed. So, FLCH and VNAV are almost always appropriate.
I am not a fan of high altitude VS climbs because in the Boeings, you lose over/underspeed protection. I rarely use VS in climbs unless I am trying to moderate a climb rate to avoid leveling off at a "cross at or below fix." With descents, I sometimes moderate a descent for similar reasons.
Nothing scientific or rigorous, but I'd guess that 85% of the time, I use VNAV, Overall, 10% or so, I use FLCH, and less than 5% I use VS.
I am not a fan of high altitude VS climbs because in the Boeings, you lose over/underspeed protection. I rarely use VS in climbs unless I am trying to moderate a climb rate to avoid leveling off at a "cross at or below fix." With descents, I sometimes moderate a descent for similar reasons.
Nothing scientific or rigorous, but I'd guess that 85% of the time, I use VNAV, Overall, 10% or so, I use FLCH, and less than 5% I use VS.
12-08-2012, 07:18 PM
#55
just past ETP
Joined APC: Sep 2012
Position: Cruise Captain
Posts: 495
FMS managed climes for the most part, unless there's a lot of hunting.. then go to VS... I usually go to VS at the last 1000' if I'm climbing faster than 1500fpm since the AIM requests you do this to prevent TA/RA issues.
Also, VS has a smoother level off usually.
Speed modes then to work the worse I've observed on the dozen or so types I've flown.
Also, VS has a smoother level off usually.
Speed modes then to work the worse I've observed on the dozen or so types I've flown.
01-16-2013, 11:14 PM
#60
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Joined APC: Dec 2012
Position: Holding over Macho Grande
Posts: 602
I swear, you guys sound like my wife and her friends at an adult toy party...
Originally Posted by DontRelaxScope
Speed to 10,000. VS the rest of the way up. I know it changes a little bit but I can never "feel" it because it is so subtle.
Originally Posted by DhruvK
agree with those who say that there are 3 or 4 ways to accomplish the same thing. Go with what best serves safety and comfort, in that order.
Originally Posted by 2StgTurbine
When I say I can feel the vertical speed change I mean when you are 10 knots slow and you dial the VS back a few hundred fpm. I don't feel it when it is left at a constant rate.
Originally Posted by Trip7
Speed mode til it oscillates enough that I'm annoyed, then v/s.
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