RM‑1

E1491418 UNEXPLORED

RM‑1 is the U.S. military designation for the Martin 4-0-4, a twin‑engine piston airliner used primarily for passenger and transport duties in the mid‑20th century.

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Label Occurrences
RM‑1 canonical 1

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Full triples — surface form annotated when it differs from this entity's canonical label.