B747-400 Rat
no, B747 does not have a RAT
and if you are thinking that was an easy job flyig on batteries please let me write down here some of the more important (ad my advise)inoperative systems: (in order of less importance )
sped Brake Auto/single source ILS/cabin ALT auto/fuel pressure 4-1/AC bus all/yaw damp/Packs 3,2,1,/fuel pumps aft/fw 2,3,/heat probes including TAT and AOA/ Ground p[orximity protection/trasponder/FMC right/ IRS AC all/
cheers