Aircraft
Blackhawk Unveils King Air 350 Engine Upgrade
In hot conditions, the company has seen climb rate more than double from sea level to the FL350 service ceiling, reducing this time-to-climb to 18 minutes.
Blackhawk Modifications has begun testing an engine upgrade for the Beechcraft King Air 350 that replaces the original 1,050-shp Pratt & Whitney Canada PT6A-60A engines with 1,200-shp (flat-rated to 1,050 shp) PT6A-67As. The installation on its King Air testbed also includes new, five-blade composite propellers from MT. (Photo: Blackhawk Modifications)
Blackhawk Modifications has begun testing an engine upgrade for the Beechcraft King Air 350 that replaces the original 1,050-shp Pratt & Whitney Canada PT6A-60A engines with 1,200-shp (flat-rated to 1,050 shp) PT6A-67As. The installation on its King Air testbed also includes new, five-blade composite propellers from MT. (Photo: Blackhawk Modifications)

Texas-based Blackhawk Modifications is working on FAA STC approval for a Beechcraft King Air 350 engine upgrade that replaces the original 1,050-shp Pratt & Whitney Canada PT6A-60A engines with 1,200-shp (flat-rated to 1,050 shp) PT6A-67As. The engines and new, five-blade composite propellers from MT were recently installed on the company’s King Air 350 testbed and, according to Blackhawk, initial performance has been “promising.”