Lorraine 12D
... that a variant of the Lorraine 12D was the most powerful French airplane engine during World War I?
... that a variant of the <b id="mwApA"><a href="./Lorraine_12D" id="mwApE" rel="mw:WikiLink" title="Lorraine 12D">Lorraine 12D</a></b> was the most powerful French airplane engine during World <span about="#mwt38" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"nowrap","href":"./Template:Nowrap"},"params":{"1":{"wt":"War I?"}},"i":0}}]}' id="mwApI" typeof="mw:Transclusion">War I?</span>