BUSINESS
December 6, 1990 | RALPH VARTABEDIAN, TIMES STAFF WRITER
In a windowless, high-security office in Hawthorne with all the ambience of a bank vault, Northrop Vice President Thomas R. Rooney is spending countless hours secretly scribbling numbers on a chalkboard, trying to settle on his final bid for the biggest jet fighter program in history. The same frenzy of activity is occurring across the basin in Burbank, where Lockheed officials are making preparations to submit their proposal by a Jan.