Is it true?
 

Are there really people out there cruising around on 1?
I've read a few lines here and there about folks shutting one down and taking the hit in speed to extend range, is it true?

Absolutely BS, stinky BS

No one fly's a twin engine airplane on one engine. When you turn one fan off it's not 50% it's 70% or more. Let's see who can tell me otherwise ..............