Turboprop engine-upgrade company Blackhawk Modifications this week announced progress toward a supplemental type certificate (STC) that will boost performance in the workhorse Beechcraft King Air 350.
Beechcraft King Air 350 Engine Upgrade STC on the Way
Key Takeaways:
- Blackhawk Modifications is progressing toward a supplemental type certificate (STC) for an engine upgrade (XP67A Engine+) on the Beechcraft King Air 350, with flight testing expected in November and STC completion by May.
- The upgrade replaces the original 1,050 shp PT6A-60A engines with high-performance 1,200 shp PT6A-67A engines and includes a five-blade propeller upgrade.
- This modification is projected to significantly enhance performance, offering a 37 ktas cruise speed increase (to 340 ktas), extended range, and improved climb performance, particularly in hot temperatures.
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