Assertion: tracer | /r/HasProperty | replaced by the grumman e-2 hawkeye
Facets:
value: in the mid-1960s
type: TEMPORAL
Source sentences:
text: As one of the first carrier based early warning aircraft, the E-1 Tracer served from 1958 to 1977, although considered only an interim type, being replaced by the Grumman E-2 Hawkeye in the mid-1960s.