Show T Three Thre ree Plane Firms Firm to Be M. M Merger Soon m. m f NEW f YORK AU Aug S 3 UP UP- UP United Aircraft and Transport corporation cor cor- por Uon is expected to announce sh shortly rUy acquisition of ot Dou Douglas Aircraft Aircraft Aircraft Air Air- craft c company and Aircraft Aircraft Air Air- craft company according t to Dow Jones Sc Co Co- Douglas makes snakes government gOY gOY- observation planes and commercial biplanes These Theo acquisitions It ii was said would greatly e enhance hance the earnings of at United Aircraft rutt which at the present time are tue esUm estimated d at a anew anew anew new rec record rd for Ol the current year |