Ultra Fast Attack Craft
...that Series III of the Sri Lanka Navy's Ultra Fast Attack Craft is the fastest of its class of patrol boats in the South Asian region, with a maximum speed of 53 knots?
...that Series III of the <a href="./Sri_Lanka_Navy" id="mwEXs" rel="mw:WikiLink" title="Sri Lanka Navy">Sri Lanka Navy</a>'s <b id="mwEXw"><a href="./Ultra_Fast_Attack_Craft" id="mwEX0" rel="mw:WikiLink" title="Ultra Fast Attack Craft">Ultra Fast Attack Craft</a></b>  is the fastest of its class of <a href="./Patrol_boat" id="mwEX4" rel="mw:WikiLink" title="Patrol boat">patrol boats</a> in the <a href="./South_Asia" id="mwEX8" rel="mw:WikiLink" title="South Asia">South Asian</a> region, with a maximum speed of 53 <a class="mw-redirect" href="./Knot_(speed)" id="mwEYA" rel="mw:WikiLink" title="Knot (speed)">knots</a>?