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FAA Approves STC for King Air 350ER Engine Upgrade

Jim Allmon (Blackhawk-left), Tim Harper (SNC-center), Pete Franks (VHA-right) with SNC's STC-approved King Air 350ER and Blackhawk's XP67A Engine+ upgrade. Blackhawk Modifications
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Key Takeaways:

  • Sierra Nevada Corporation and Blackhawk Modifications partnered to develop the XP67A engine modification for the Beechcraft King Air 350ER.
  • The XP67A upgrade significantly boosts aircraft performance with a 25-30% power increase and an 18-pound weight reduction.
  • FAA approval for a maximum takeoff weight of 17,500 pounds allows for increased mission payloads, longer loiter times, and enables the King Air 350ER to operate at its full potential for Special Missions.
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Two companies have partnered to develop a supplemental type certificate for a Beechcraft King Air 350ER engine modification that will give the aircraft greatly increased performance.

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