I looked up the AFM metro 3.Your quite correct there's no definition/reference to VMCG.The AFM does say 'use nosewheel steering until 60K's,after which use the flight controls.'This area of speed covers the 'grey'VMCG point,and being so low,was not an everyday consideration??.
The Metro 3 meets part 25FAR's in that it 'complies' to an engine out climb gradient(among other things).
Cheers
