Originally Posted by
stilton
Since when is a DC9 a ‘centerline thrust aircraft’ ?
Well, the FAA considered it as such circa 1970; no idea what they say now. If I recall the details after all this time, I think it was because the Vmca was below the stall speed.
Coming at the time from the S/E world in license terms, when I got my first ATP with DC9 type rating the M/E rating thrown in was limited to C/L thrust. When I contacted my acquaintance in flight test at Douglas to complain, he gave me the above explanation...IIRC. That C/L limit wasn't changed until I later got a B737 type rating.
I think the B727 was the same thing ?