Delaware is giving $1.36 million to Greenwich AeroGroup to help the Connecticut company's $12 million, 78,000-square-foot expansion of its 160,000-square-foot Summit Aviation aircraft maintenance complex on 550 acres near Middletown, Del. The company will hire 188 new airplane and helicopter mechanics by 2013, Delaware Gov. Jack Markell said at the groundbreaking today.

The 60-year-old airfield, started in 1960 by Richard C. du Pont, fixes helicopter gunships and other aircraft for the U.S. military, including Boeing CH-47 Chinook helicopters. Summit also fixes Bell, Europter, Sikorski and MD helicopters and Pilatus, Cessna Caravan Beechcraft, King Air and other police, corporate and private aircraft.

This follows January's news that the Army has picked the Millville Airport, run by the bistate Delaware River and Bay Authority, for other Chinook work.