The world's second-largest commercial airplane maker increased its guidance for 2008 earnings, citing productivity improvements.

Boeing's helicopter division is based in Ridley Township, where it has about 4,500 employees.

Net income for the last three months of 2007 was $1.03 billion, or $1.36 per share, up from $989 million, or $1.29 per share, in the fourth quarter of 2006. That was 4 cents per share better than the consensus estimate of analysts polled by Thomson Financial.

Revenue was $17.5 billion, flat with a year earlier but slightly above analysts' forecast of $17.3 billion.

The company increased its guidance for 2008 earnings per share to between $5.70 and $5.85 from an earlier range of $5.55 to $5.75.

Boeing's continued resurgence in the quarter was led by its Seattle-based commercial airplane manufacturing business, where operating earnings increased 46 percent to $973 million and revenue jumped 17 percent to $8.9 billion. Deliveries rose 9 percent to 112 and the record backlog grew 46 percent to $255 billion, reflecting strong demand for the 787 and other planes.

The Chicago-based company closed the gap on Airbus in aircraft deliveries but still ended the year trailing its European rival for a fifth straight year, 453 to 441, while outpacing it in orders.

Boeing said it continues to address problems in assembling the first 787s but remains on the revised schedule announced earlier this month. It said Jan. 16 it would push back the 787's inaugural flight until the end of the second quarter due to supply chain problems and slow progress on the assembly line, with the first delivery not expected until early 2009.

Chief Executive Jim McNerney alluded to the unresolved 787 issues but did not elaborate in the company's earnings statement. "Despite some development program challenges, we are a strong company growing stronger and we expect continued improvement in our financial results in 2008 and beyond," he said.

The company's St. Louis-based military contracting business saw earnings from operations decline 5 percent to $978 million and revenue fall 14 percent to $8.6 billion. The revenue drop was largely because results from a year earlier included two months of revenue from its Delta IV family of rockets, which are now part of United Launch Alliance, a joint venture with Lockheed Martin Corp.

Boeing had full-year earnings of $4.1 billion, or $5.28 per share, up 84 percent from $2.2 billion, or $2.85 per share, in 2006. Revenue climbed 8 percent to $66.4 billion from $61.5 billion.

Boeing shares, which have fallen this year over 787-related concerns, fell $1.96, or 2.4 percent, to $79 in premarket trading.