Cloudster II
... that the Douglas Aircraft Corporation's Cloudster II, intended for use as an executive transport, was powered by two engines but only had a single propeller?
... that the <a class="mw-redirect" href="./Douglas_Aircraft_Corporation" id="mwBD4" rel="mw:WikiLink" title="Douglas Aircraft Corporation">Douglas Aircraft Corporation</a>'s <b id="mwBD8"><a href="./Douglas_Cloudster_II" id="mwBEA" rel="mw:WikiLink" title="Douglas Cloudster II">Cloudster<span id="mwBEE" typeof="mw:Entity"> </span>II</a></b>, intended for use as an <a class="mw-redirect" href="./Executive_(management)" id="mwBEI" rel="mw:WikiLink" title="Executive (management)">executive</a> transport, was powered by two engines but only had a single <a href="./Propeller" id="mwBEM" rel="mw:WikiLink" title="Propeller">propeller</a>?