Assertion: trident's missile | /r/HasAspect | top speed of over 21,600 km/h
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Source sentences:
text: The missile is 13 metres (43 ft) long, weighs 58.5 tonnes (129,000 lb), has a range of 11,300 kilometres (7,000 mi), a top speed of over 21,600 km/h (13,400 mph) (Mach 17.4) and a circular error probable (CEP) accuracy to within "a few feet".