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1 definition by Cosmo50

 
1.
Many turbojet autopilot systems actually have a button labeled "FLCH" which is clearly pronounced "Felch Mode" by every corporate pilot I know.

For some reason many pilots are happy to discuss "Felch Mode" and why it should not be used.
PNF: We were cleared down to FL340, should I Felch you?
PF: Nah, just use VS mode.
by Cosmo50 February 19, 2008