Assertion: aircraft | /r/HasProperty | safe
Facets:
value: previously
type: TEMPORAL
value: from interception
type: CAUSE
value: from the mig-17
type: OTHER
Source sentences:
text: Richard Leghorn of the United States Air Force (USAF) suggested that an aircraft that could fly at 60,000 feet (18,300 m) should be safe from the MiG-17, the Soviet Union's best interceptor aircraft, which could barely reach 45,000 feet (13,700 m).
text: In 1984, during a major NATO exercise, RAF Flight Lieutenant Mike Hale intercepted a U-2 at a height of 66,000 feet (20,100 m), where the aircraft had previously been considered safe from interception.