Shares of Lockheed Martin Corp. LMT, -1.29% shares fell 3.5% in premarket trading Tuesday after the aerospace and defense contractor reported second-quarter results that missed analysts’ profit and sales estimates. Net income was $309 million, or $1.16 a share, which included non-operational charges of $1.7 billion. The company’s net income was $1.81 billion, or $6.52 a share, in the prior year’s quarter. The Factset consensus for earnings per share was $1.88. Sales were $15.44 billion, down from $17.02 billion in the year-ago quarter, missing the FactSet consensus of $15.98 billion. Aeronautics revenue was $5.86 billion, down from $6.66 billion in the same period last year, while missiles and fire control sales were $2.74 billion, down from $2.94 billion. Rotary and mission systems revenue was $4.01 billion, down from $4.24 billion. Space sales were $2.82 billion, compared to $3.17 billion in the prior year’s quarter. Lockheed Martin lowered its full-year sales guidance to $65.25 billion from its prior guidance of $66 billion, and gave full-year EPS guidance of $21.55 compared to its prior outlook of $26.70.