Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym 51M is...

51M is

  • Oscoda County Airport, Mio, Michigan USA

51M is also in:

Acronym Definition Searched: EDO EG DP 49643 MPT WHTN CTRL 29715 FEID NCU ELAC WOW PGF HIC ICF