FITCHBURG – Work to lengthen the Fitchburg Municipal Airport runway has resumed and is expected to be finished in May, according to interim Airport Manager Peter E. Kettle.The existing 4,500-foot runway is being lengthened to 5,001 feet, said Kettle, who is the former chairman of the airport commission.”Now we will be able to get the small business jets in,” he said.Insurance companies, he noted, require the longer, 5,000-foot runway length.Depending on the […]