MB-4
... that Thomas-Morse's general plant superintendent called the company's MB-4 mail plane "the worst thing on wings"?
... that <a href="./Thomas-Morse_Aircraft" id="mwGK4" rel="mw:WikiLink" title="Thomas-Morse Aircraft">Thomas-Morse</a>'s general plant superintendent called the company's <b id="mwGK8"><a href="./Thomas-Morse_MB-4" id="mwGLA" rel="mw:WikiLink" title="Thomas-Morse MB-4">MB-4</a></b> <a href="./Mail_plane" id="mwGLE" rel="mw:WikiLink" title="Mail plane">mail plane</a> "the worst thing on wings"?