. ▁ ▁Motor ▁bo ating ▁skills ▁The ▁boats ▁were ▁almost ▁all ▁naval ▁stock , ▁dies el ▁power ed : ▁A ▁ 2 5 - foot ▁naval ▁cut ter ▁( T win - cy l inder ▁dies el ), ▁centre ▁pseudo - c ab in ▁housing ▁engine ▁Several ▁" V ik ing " ▁open ▁tend ers ▁( single - cy l inder ▁air - co o led ▁dies el ) ▁with ▁poor ▁handling ▁A ▁Work bo at ▁with ▁a ▁c ud dy , ▁acquired ▁from ▁Hay m ills ▁Const ruction ▁after ▁the ▁re build , ▁similar ▁to ▁the ▁Vik ings , ▁but ▁with ▁better ▁handling ▁" Number ▁ 8 ", ▁a ▁small ▁cl ink er - built ▁smart , ▁stub by , ▁open ▁launch , ▁about ▁ 1 6 - foot ▁LO A ▁with ▁relatively ▁low ▁fre eb o ard ▁( Single - cy l inder ▁L ister ▁air - co o led ▁dies el ) ▁ ▁P ull ing ▁( row ing ) ▁Basic ▁pulling ▁skills ▁were ▁taught , ▁usually ▁to ▁Sea ▁Cad ets , ▁either ▁in ▁the ▁ASC ▁or ▁in ▁one ▁of ▁a ▁pair ▁of ▁adm ir alty ▁wh al ers ▁( a ▁cl ink er ▁built ▁pulling ▁boat ▁of ▁approximately ▁ 2 8 ' ▁LO A , ▁sl im ▁beam , ▁designed ▁for ▁naval ▁pulling ▁races , ▁but ▁originally ▁a ▁practical ▁ship ' s ▁boat ). ▁ ▁S ail ing ▁Bo ats ▁were ▁a ▁mixture ▁of ▁typical ▁naval ▁stock ▁and ▁somewhat ▁strength ened ▁" ordinary " ▁d ing h ies .