Charterers under an NYPE T/C, challenged the delivery time specified by Owners, stating that the AIS had been turned off some 442 nm away and the Vessel could not have covered that distance in the intervening period. Owners’ argument that the Vessel speeded up was rejected as the logs produced in support were unconvincing (all in the same hand, allegedly produced from memory without aid of rough logs). Charterers failed however on their performance claim by not meeting a provision requiring their evaluation to be submitted latest 15 days after the passage in question.