Waveney
... that the Waveney was the first class of lifeboats built for the Royal National Lifeboat Institution capable of speeds in excess of 10 knots (19 km/h)?
... that the <b id="mwGRE"><a class="mw-redirect" href="./Waveney_class_lifeboat" id="mwGRI" rel="mw:WikiLink" title="Waveney class lifeboat">Waveney</a></b> was the first class of <a href="./Lifeboat_(rescue)" id="mwGRM" rel="mw:WikiLink" title="Lifeboat (rescue)">lifeboats</a> built for the <a href="./Royal_National_Lifeboat_Institution" id="mwGRQ" rel="mw:WikiLink" title="Royal National Lifeboat Institution">Royal National Lifeboat Institution</a> capable of speeds in excess of <span about="#mwt85" data-mw='{"parts":[{"template":{"target":{"wt":"Convert","href":"./Template:Convert"},"params":{"1":{"wt":"10"},"2":{"wt":"kn"},"3":{"wt":"km/h"}},"i":0}}]}' id="mwGRU" typeof="mw:Transclusion">10 knots (19</span><span about="#mwt85" typeof="mw:Entity"> </span><span about="#mwt85">km/h)</span>?