Boeing Co. delivered only 29 single-aisle jetliners last month, the lowest tally since January 2012, as the planemaker dealt with supplier constraints that left dozens of unfinished 737 aircraft parked around a Seattle-area factory. The manufacturer recorded just 39 total commercial-jet deliveries last month, down from 82 in June, according to data posted on the company’s website Tuesday. While it’s not unusual for jet shipments to vary from month to month, Boeing’s slow July raises concern… (www.yahoo.com) 更多...