Pterodactyl Ascender
...that the Pterodactyl Ascender has been one of the most influential designs in ultralight aviation?
...that the <b id="mwDfo"><a href="./Pterodactyl_Ascender" id="mwDfs" rel="mw:WikiLink" title="Pterodactyl Ascender">Pterodactyl Ascender</a></b> <i id="mwDfw">(pictured)</i> has been one of the most influential designs in <a href="./Ultralight_aviation" id="mwDf0" rel="mw:WikiLink" title="Ultralight aviation">ultralight aviation</a>?