Originally Posted by Spazsinbad
You guess - I guess.
You can technically also argue that the sky isn't blue...quite an odd argument for someone giving himself right to call others 'fans', 'JSF haters' and whatnot, wouldn't you say so?
Anyway, it's the other half of the sentence that actually explains the first and it goes:
far less often than the 80 percent rate factored into the initial estimates....
Why on Earth would anyone factor in an 80% vertical flight time even in a helicopter let alone an aircraft then?