3 ms·
From the captions, this battery starts the APU (and in an emergency, critical systems). The APU starts the main engines http://en.wikipedia.org/wiki/Auxiliary_p
by moreati 14y ago
From the captions, this battery starts the APU (and in an emergency, critical systems). The APU starts the main engines http://en.wikipedia.org/wiki/Auxiliary_power_unit http://en.wikipedia.org/wiki/Auxiliary_power_unit