The minimum unusable fuel in the fuel tank in B777
 

As the title, does anybody can tell me what's the minimum unusable fuel in the fuel tank? I cant find in the Flight Manual.

Thanks guys.

There's no such thing as minimum unusable fuel....after emptying the tanks with the boost pumps/suction, you would expect to sump up 50 gallons
Capacities are 64,640 lb (29 320 kg) for the wings and 176,440 lb (79 720 kg) for the centre tank.

Zero.
Think you will find in the FCOM it states that the gauges will read 0 at min useable. If you are that tight, go till it goes quiet!!!

Watch out for Gravity, It eventually has control.

singleseater has it right. For the B777, when the fuel quantity is down to unuseable, the gauges read zero. (NOT so for many other aircraft).

Regards,

Old Smokey