\DeclareFontFamily{LUC}{utdn}{\hyphenchar\font\m@ne}

\DeclareFontShape{LUC}{utdn}{b}{n}{<-> LUC * outdnb}{}
\DeclareFontShape{LUC}{utdn}{bx}{n}{<-> LUCssub * utdn/b/n}{}
\DeclareFontShape{LUC}{utdn}{m}{n}{<-> LUC * outdnm}{}
