MD-11 system depth preview: Electrical trouble!

[mburkhard 23]

Hi all,in another thread someone was not sure about the depth of our MD-11 simulation compared to other fine add-ons out there, so let me show one example.The following sequence shows an 'all generators off' situation, meaning all engine generators are no longer working, for an unknown reason. A situation like that happened on a Qantas B747 some months ago, so don't think this never happens.Note that in such a situation hydraulic pressure is still being generated.So via the PMDG failures menu I select to fail all three engine generators, first only one, than the other two.Note that to handle this situation I can use a real checklist and all happens as indicated on that checklist.http://idisk.mac.com/markus.burkhard/Public/PMDG/demo_0.jpgFirst master caution with an associated message that one engine driven generator is OFF, no problem, the other generators can handle that.http://idisk.mac.com/markus.burkhard/Public/PMDG/demo_1.jpgThe situation displayed on the SD ENG page.http://idisk.mac.com/markus.burkhard/Public/PMDG/demo_2.jpgThen two more generators fail. The only thing left right now is the emergency power and battery power. All screens on the F/O's side are dark, also lost are autopilot, auto thrust and both FMC.Furthermore, engine 2 just flamed out (no suction feed possible, and there's no fuel pump running to get fuel up to the tail.http://idisk.mac.com/markus.burkhard/Public/PMDG/demo_3.jpgHave a look overhead. Note that the indication lights of the AIR, HYD and FUEL panel are all gone, so if you had to push one of their buttons you had no indication of any action.But according procedure the engine ignition is set to override.http://idisk.mac.com/markus.burkhard/Public/PMDG/demo_4.jpgWe need power now, fast! Deploy the ADG, air driven generator. This propeller driven generator may give you either hydraulic pressure OR electrical power. We need the latter.http://idisk.mac.com/markus.burkhard/Public/PMDG/demo_5.jpgTo activate the ADG's electrical mode there's a 'ADG ELEC' pushbutton on the overhead's ELEC panel.http://idisk.mac.com/markus.burkhard/Public/PMDG/demo_6.jpgWe get five of the six DUs back, plus the two MCDUs, and engine two relights because we set the ignition to override earlier and fuel feed is again possible. However FMC1 is lost, you can see that the captain's MCDU dropped to the MENU page giving no FMC prompt.http://idisk.mac.com/markus.burkhard/Public/PMDG/demo_12.jpgFuel is now fed out of tank to up to engine 2, only one pump available as indicated on the SD FUEL page. Note that there's no fuel quantity indication available on this page, indicated by the amber Xs.http://idisk.mac.com/markus.burkhard/Public/PMDG/demo_7.jpgThe ADG is of course visible on the outside model, extended below door 1R and rotating.http://idisk.mac.com/markus.burkhard/Public/PMDG/demo_8.jpgRemains the issue of no FMC on the captain's MCDU and the ND is not showing the map.http://idisk.mac.com/markus.burkhard/Public/PMDG/demo_9.jpgHere's where the SISP panel comes into use. Using this we switch the captain's side to FMS2 by pressing the 'FMS' pushbutton. The procedures calls for the 'APPR' button too. Note that due to lack of power the indication on the switches will not light up when pressing them.http://idisk.mac.com/markus.burkhard/Public/PMDG/demo_10.jpgAs you can see the MCDU1 now shows the FMC2 as available, so now both captain and F/O work on the same FMC.But we got a new message 'FMC RANGE DISAGREE'. This is caused by a different range setting of the F/O's ND (not available anymore). Now since the FMS data comes from the F/O's side which has a range of 10nm on the ND the system can't draw a 40nm range as presently selected on the captain's ND, hence the message.http://idisk.mac.com/markus.burkhard/Public/PMDG/demo_11.jpgSwitching to 10nm on the captain's side gives the MAP indication back and we have the full flight plan visible again.That's it, off to the nearest suitable airport!Hope this gave you a good taste of the complex system simulation available on our MD-11!Best regards,Markus

[lbarber 20]

Yeahhhh, I drooled on the keyboard :-P-Lee Barberhttp://home.nc.rr.com/uniuniunium/dvasig.jpg

[Jones 0]

Dude, My Mouth was water the whole time I was reading this.Thank YouCapt. Eric Wade Joneswww.usairwaysva.orghttp://www.precisionmanuals.com/images/forum/1900driver.jpg

[Guest pilot-joey]

Auch! I had a real jawdrop over here, DENTIST!!Stunning shots, and ofcourse simulation.Can't wait!Best regards, Joey

[wijnand 11]

Hi Markus,great pictures. Thank you very much for your effort, it is appreciated!!Did you land her safely?????Wijnand (EHBK)

[mburkhard 23]

Wijnand,after you have worked through the checklist for this scenario you'll be able to land the aircraft just fine. However at about 100kts during landing you will loose the ADG power as there's not sufficient airspeed then to drive the propeller.I didn't land yesterday, had no time for this, sorry :)Regards,Markus

[byork 2,258]

I think in terms of 'systems depth' the PMDG MD11 will be considered the 744 PS1.3 of MD11's sims.My MD11 consultant once commented to me that the PMDG MD11 models failure scenarios that even real the MD11 simulators don't model, which is amazing frankly.Bryan

[Guitarman 0]

Hello Markus,As I follow the forum multiple times a day to see how it goes with the MD-11, I couldn't resist to reply, now. As I can see what your aircraft has "onboard", I really do believe why it takes so many time to develope it.My congrats to you and the team, and thank you so much for nice screenshots and explanations.Best regards,PeterBelgiumFlightsimulator is not a simulation, it's a way of life ....

[onurksn 1]

Amazing!!Thanks for the presentation, very instructive and a good appetizer too :)

[Holgi 1]

Hi Markus,does the PMDG MD11 simulate a realistic ECON speed (including the wind factor)?Thanks,Holger

[lbarber 20]

Markus-During an emergency/battery only situation like this, are the automatic air/hyd/fuel systems still being run by their respective controllers or have they reverted to a manual mode?-Lee Barberhttp://home.nc.rr.com/uniuniunium/dvasig.jpg

[mburkhard 23]

>does the PMDG MD11 simulate a realistic ECON speed (including>the wind factor)?Holger,yes ECON speed calculation as well as all wind entry possibilities are modeled.Regards,Markus

[mburkhard 23]

>During an emergency/battery only situation like this, are the>automatic air/hyd/fuel systems still being run by their>respective controllers or have they reverted to a manual>mode?Lee,if you look at the screenshots closely you will see alerts like 'SEL FUEL SYS MAN', this means that those systems no longer work in automatic mode and if you want to make any changes you need to switch to manual.If you are on EMER and ADG power only there really is not much kept working.Things get worse if you are in an all-engine-out situation. Then the ADG needs to produce hydraulic pressure and can't give you any power. Then you'll have two display units only, no FMC at all. However you can still access the standby flight plan function as long as you have IRS working on battery, this gives you the possibility to enter waypoints as coordinates like in the early days of INS navigation. Fully modeled here of course :)Regards,Markus

[Holgi 1]

>>does the PMDG MD11 simulate a realistic ECON speed>(including>>the wind factor)?>>Holger,>yes ECON speed calculation as well as all wind entry>possibilities are modeled.>>Regards,>MarkusThank you Markus!Just to be sure. I dont talk about the wind entries in the fmc. I talk about a dynamic ECON SPD, which increases with higher headwind components. Currently I only know the Lenonardo Maddog, which simulate this correctly.Thanks,Holger

[3-2-1-Now 126]

I need a new keyboard - this one is flooded!!! :-lolCOME ON PMDG! RELEASE THIS THING! :DBest regards,Robin.