Assertion: tango | /r/CapableOf | reduce effective speed
Facets:
value: to 4-7 knots
type: OTHER
Source sentences:
text: Displacing 66 short tons (60 t), it could achieve a top speed of 8 knots (15 km/h; 9.2 mph) knots with its twin Gray Marine 225-hp diesel engines, however armor and weapons reduced the effective speed to 4-7 knots.