Assertion: tank's speed | /r/HasProperty | 13 kilometres per hour
Facets:
value: with full motor field
type: OTHER
value: during actual field testing
type: TEMPORAL
Source sentences:
text: However, during actual field testing, the maximum speed achieved on hard surfaces was 13 kilometres per hour (8.1 mph) with full motor field, and by weakening the motor field to a minimum, a top speed of 22 kilometres per hour (14 mph) was achieved.