worst case scenario

[Nice 0]

ok imagine yourself in 747 and sudenly all engines are gone automaticly you lose hyd that what hapened to me and i couldnt control plane.now is there any backup system that shoul pump hyd or something if there is tell me pls where i could find it in cockpit.pls dont tell me search forum or manual cause i couldnt find nothing

[downscc 1,327]

AUX HYD??

[FLEX1978 373]

SOP would be to continuously try to get them started. You will still have control in the real aircraft (And PMDG), 4 engines wind milling will provide sufficient hydraulic pressure to attempt a landing.

[clipper759 4]

"Take a deep breath and wind your watch", as my old Instructor used to say. Then do what real pilots would do...run the checklist. Start with QRH 6-6 (Multiple Engine Failure) and proceed from their. Most operators specifiy a priority order of Powerplant, Electrical, Hydraulic, Pneumatic, other. In a multiple failure scenerio this would be your guide as to which checklist to run next.Please sign your full name Daniel, per forum rules.Cheers

[FLEX1978 373]

Dont know if it's simulated on the PMDG 744 but I should also add that as the aircraft and windmilling engines slow then control would reduce to next to nothing. Also if you tried to extend the flaps you would lose all pressure.

[Nice 0]

Dont know if it's simulated on the PMDG 744 but I should also add that as the aircraft and windmilling engines slow then control would reduce to next to nothing. Also if you tried to extend the flaps you would lose all pressure.

i tryed windmil engines but i have to descent to much fast for that.and aux seams that doesnt help to much is there something like air turbine to deploy??

[FLEX1978 373]

i tryed windmil engines but i have to descent to much fast for that.and aux seams that doesnt help to much is there something like air turbine to deploy??

No RAT installed or APU start in flight.

[Jet Tech 31]

Daniel,The Engine hydraulic pumps are designed to continue to offer pressure even with the engine windmilling after failure. The chances of losing all 4 engines is considered so remote that Boeing does not have a RAT or such to act as Back up since you have 4 independent systems with 2 pumps on each system on 4 different powerplants.