Deletion of Revenue passenger mile

Comment: Please see : "''One perennial source of confusion is that a stub encyclopedia article looks very much like a stub dictionary entry, and stubs are often poorly written. Another perennial source of confusion is that some paper dictionaries, such as "pocket" dictionaries, lead editors to the mistaken belief that dictionary entries are short, and that short article and dictionary entry are therefore equivalent.''"  The sourcing is unimportant because sources are only required for quotes or controversial statements.  Wikipedia is an encyclopedia, not a search engine
Stance: keep
Cited policy: Wikipedia:Wikipedia is not a dictionary (WP:DICDEF)