Packard DR-980
... that on 28 May 1931, a Bellanca CH-300, fitted with a Packard DR-980 diesel engine, set a 55-year record for staying aloft for 84 hours and 32 minutes without being refueled?
... that on 28 May 1931, a <a class="mw-redirect" href="./Bellanca_CH-300" id="mwEy0" rel="mw:WikiLink" title="Bellanca CH-300">Bellanca CH-300</a>, fitted with a <b id="mwEy4"><a href="./Packard_DR-980" id="mwEy8" rel="mw:WikiLink" title="Packard DR-980">Packard DR-980</a></b> <a href="./Diesel_engine" id="mwEzA" rel="mw:WikiLink" title="Diesel engine">diesel engine</a>, set a 55-year record for staying aloft for 84 hours and 32 minutes without being refueled?