MD-11 FMS Gotcha's
02-08-2007, 03:01 PM
#21
Line Holder
Joined APC: Aug 2006
Posts: 26
Not really an FMS gotcha but a GCP gotcha.... If you are descending on the A/P after pulling level change then decide to hand fly it and click off the A/P make sure to flick the V/S wheel down to get the speed on thrust instead of pitch. If it's speed on pitch and you pull the nose up you'll find out about the MD11's nifty low speed protection system! Years ago I saw one of our non-union boneheads (he had a corvette with THXALPA plates) make this mistake.
02-08-2007, 03:01 PM
#22
Gets Weekends Off
Joined APC: Apr 2006
Position: MD-11 Captain
Posts: 4,304
It's FRENCH!
I went through MD-11 training at the McDonnell-Douglas facility in Long Beach. According to their engineers, the MD-11 FMS software is the A330/A340 software modified where necessary for the MD-11. Maybe that explains some of the backwards logic when programming the FMS (it's really FRENCH!)
Sacré bleu
Mark
Sacré bleu
Mark
02-08-2007, 03:06 PM
#23
Gets Weekends Off
Joined APC: Feb 2007
Position: MD-11 F/O
Posts: 319
Originally Posted by FXMDog
If it's speed on pitch and you pull the nose up you'll find out about the MD11's nifty low speed protection system! Years ago I saw one of our non-union boneheads (he had a corvette with THXALPA plates) make this mistake.
02-08-2007, 03:57 PM
#26
Living the dream!
Joined APC: May 2006
Position: MD-11 Capt
Posts: 915
Originally Posted by CaptainMark
solve all these problems by bidding THE BUS!!!!!
Enjoy OMA and I'll suffer through my 52 hours in Paris. I hear Jaylo kicked your butt!
Seeya
02-08-2007, 06:00 PM
#27
Gets Weekends Off
Joined APC: Mar 2006
Position: FDX A300 CPT
Posts: 967
Originally Posted by R1200RT
Having flown both (you have not) The Bus sucks. You have to watch the FMS on the BUS 100% of the time ... it will screw you any where anytime. Too many gotchs to list. It almost never works right.
Enjoy OMA and I'll suffer through my 52 hours in Paris. I hear Jaylo kicked your butt!
Seeya
Enjoy OMA and I'll suffer through my 52 hours in Paris. I hear Jaylo kicked your butt!
Seeya
02-08-2007, 06:36 PM
#28
Gets all holidays off
Joined APC: Feb 2005
Position: Retired UPS 767 Captain, SDF Z
Posts: 431
Originally Posted by MAWK90
Rank your top 5 MD-11 FMS Gotcha's. Example would be "cleared to intercept the localizer" 35 miles out and forgetting to hard tune the ILS Freq/inbound course outside of 25 miles.
02-08-2007, 06:41 PM
#29
Gets Weekends Off
Thread Starter
Joined APC: Aug 2006
Position: Michael Vick's favorite animal
Posts: 267
Start 3-1-2
Not an FMS question, but why do we start #3 first? I understand that you press sys 3 w/the aux pump prior to start, and the only thing I can come up with is engine 3 powering hydro system 3 for brakes.
Anybody with the "official" answer?
Anybody with the "official" answer?
02-08-2007, 06:42 PM
#30
Gets all holidays off
Joined APC: Feb 2005
Position: Retired UPS 767 Captain, SDF Z
Posts: 431
Originally Posted by maddogmax
I have never flown the MD-11 but have flown numerous FMS aircraft none of which could you program a step climb. Although the computer knows your current weight, altitude, temperature and winds it cannot accurately predict these factors as you climb. In a climb, it is restricted to thrust and airspeed limits. In a descent, you can vary thrust (idle to max), airspeed (within limits) and use the always handy speedbrakes to make an altitude restriction. Hope that answers your question
The procedure for programming step climbs is in the Boeing FMS Guide, cruise seciton, page 40.49 Works good, lasts a long time.
Thread
Thread Starter
Forum
Replies
Last Post
