Wag-Aero CUBy
... that the designer of the Wag-Aero CUBy aircraft flew one to 20,000 ft to show that it would not suffer vapor lock from using automotive fuel as a power source?
... that the designer of the <b id="mwAqM"><a href="./Wag-Aero_CUBy" id="mwAqQ" rel="mw:WikiLink" title="Wag-Aero CUBy">Wag-Aero CUBy</a></b> aircraft flew one to 20,000<span id="mwAqU" typeof="mw:Entity"> </span><a href="./Foot_(unit)" id="mwAqY" rel="mw:WikiLink" title="Foot (unit)">ft</a> to show that it would not suffer <a href="./Vapor_lock" id="mwAqc" rel="mw:WikiLink" title="Vapor lock">vapor lock</a> from using <a href="./Avgas#Automotive_gasoline" id="mwAqg" rel="mw:WikiLink" title="Avgas">automotive fuel</a> as a power source?