Carlson Sparrow
... that the Carlson Sparrow was declared Grand Champion ultralight aircraft at the Experimental Aircraft Association's 1987 Oshkosh Airshow?
... that the <b id="mwBsA"><a href="./Carlson_Sparrow" id="mwBsE" rel="mw:WikiLink" title="Carlson Sparrow">Carlson Sparrow</a></b> was declared Grand Champion <a class="mw-redirect" href="./Ultralight_aircraft" id="mwBsI" rel="mw:WikiLink" title="Ultralight aircraft">ultralight aircraft</a> at the <a href="./Experimental_Aircraft_Association" id="mwBsM" rel="mw:WikiLink" title="Experimental Aircraft Association">Experimental Aircraft Association</a>'s 1987 <a href="./EAA_AirVenture_Oshkosh" id="mwBsQ" rel="mw:WikiLink" title="EAA AirVenture Oshkosh">Oshkosh Airshow</a>?