He can now, it has an electric starter generator but I thought prior to becoming the S64 it had a hand pumped hydraulic accumulator that powered an hydraulic starter motor for the APU.
Lots of time to pick a field eh??
Not much use when you are logging or firefighting though
Dont forget that the utility system (powers the main engine start motors) is rotating as long as the blades go round OR the APP is on line (until Nr goes high enough to "de-clutch" the APP drive train).
Some really great thinking went into the hydraulic design (and many other aspects) of the Crane and my hat is off to those drivers of slide rules.
(Personally I grimace every time I hear or see the phrase "designed by computer" - it is a tool but it needs an engineer to wield it. No prize for guessing what I do for a living eh?)