Phoenix, AZ - March 19th, 2025 - Blackhawk Aerospace is excited to announce that their XP67A Engine+ Upgrade is now certified with the MT 7-Blade composite propeller for King Air 350 series aircraft. This milestone sets a new standard for performance, efficiency, and comfort in turboprop aviation. 

Certified by MT Propeller in Germany in unison with BLR Aerospace, this new propeller option builds on the success of the previously certified 5-blade Whisper Props®. The new 7-blade design enhances climb rate, cruise speed, and fuel efficiency while significantly reducing cabin noise and vibration fatigue. When paired with Blackhawk’s XP67A Engine+ Upgrade, the combination unleashes the potential of the King Air 350, making it one of the best variants on the market. 

Performance Advantages: 

• Quiet Propeller for King Air – Certified for low takeoff noise, delivering a noticeably quieter cockpit and cabin. 

• Superior Aerodynamics – Reduces vibration fatigue with a 45% higher damping coefficient, enhancing longevity of aircraft systems. 

• Fuel Savings & Smooth Taxiing – No RPM restrictions during ground operations, minimizing brake wear and optimizing fuel efficiency. 

• Enhanced Durability – Nickel-cobalt leading-edge blade protection for superior resistance to erosion and damage. 

• Simplified Maintenance – On-aircraft repairs and in-field blade replacements without hub changes. 

“At Blackhawk, we’re always looking for ways to help our operators get more performance, efficiency, and value out of their aircraft,” said Edwin Black, President at Blackhawk. “The certification of the 7-blade Whisper Prop® with our XP67A Engine+ Upgrade is a huge win—it’s quieter, smoother, and makes an already incredible upgrade even better. We’re proud to offer this upgrade alongside MT Propeller and BLR Aerospace to bring this innovation to the King Air community.” 

Blackhawk Aerospace has transformed the King Air 350 with the XP67A Engine+ Upgrade, featuring powerful Pratt & Whitney PT6A-67A engines. Now, with the addition of the 7-blade Whisper Prop®, both pilots and passengers will enjoy a quieter flight, improved safety from faster climb rates, and improved fuel economy—all while enhancing comfort. 

For more information, stop by the Blackhawk booth this week at King Air Gathering in Phoenix, AZ or contact Blackhawk at +1 (254) 755 6711 or info@blackhawk.aero.  

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About Blackhawk Aerospace

Blackhawk Aerospace is a premier provider of performance enhancements for turboprop aircraft, offering a diverse range of services including engine upgrades, aircraft sales, government/defense program management, and modernization services. Founded in 1999 and headquartered in Waco, Texas, Blackhawk Aerospace serves a global customer base via a network of authorized dealers and service support centers. To learn more, visit www.blackhawk.aero. 

About The Blackhawk Group

The Blackhawk Group was established in December 2021 as a premier provider of sales, services, and upgrades for the light turbine market. The platform includes market leaders such as Blackhawk Aerospace, a provider of engine, aircraft, and avionics upgrades for turbine-powered aircraft; AVEX Aviation, a provider of sales and maintenance for the Daher TBM; and Finnoff Aviation Products, a provider of engine, propeller, and other upgrades for the Pilatus PC-12. 

For more information visit blackhawk.aero, avexaviation.aero, and finnoff.aero.