October 20,2025
King Air operators have something new to look forward to. Raisbeck Engineering, Inc. (“Raisbeck”) and CiES Inc. (“CiES”) have announced a partnership to deliver a modern, highly reliable fuel quantity indication system (FQIS) for Beechcraft King Air aircraft. The upgrade builds on the companies’ previous collaboration combining CiES’s cutting-edge magneto-resistive sensing technology with Raisbeck’s decades of expertise in product integration and customer support.
The program is targeting supplemental type certificate (STC) approval in Q4 2025, with first customer deliveries expected in Q2 2026. Initial kits will be available for the King Air 200, with plans to expand across the King Air fleet.
Why This Upgrade Matters
Pilots will benefit from precise, stable fuel readings across the entire operating envelope, reducing nuisance faults and lowering maintenance demands. In short, this upgrade delivers the reliability King Air operators expect for every mission.
“King Air operators expect mission-ready reliability, and this program delivers exactly that,” said Gregory Davis, President of Raisbeck. “CiES’s sensing technology and our customer-care capabilities are a powerful combination. We’ve built a strong, trust-based partnership that complements each other’s strengths — and that translates directly into quality, speed, and support for our customers.”
Scott Philiben, President of CiES, added: “Raisbeck understands product development, integration, and the King Air market like few others. Pairing our magneto-resistive fuel sensing — now widely adopted across OEM and retrofit applications — with Raisbeck’s customer support and service culture ensures King Air operators get a best-in-class solution and a team that will stand behind it.”
Nick Lyle, Raisbeck’s Vice President of Sales, noted, “This is the upgrade our customers have been asking for. There’s real pent-up demand in the King Air community for a modern, dependable fuel quantity system. We’re excited to bring this to market and to start shipping kits as soon as certification is complete.”
Program Highlights
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Targeted Certification: STC approval expected Q4 2025
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Availability: First customer deliveries planned Q2 2026, starting with the King Air 200
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Scope: Complete replacement system for legacy FQIS components, using advanced magneto-resistive sensing
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Benefits: Improved accuracy and stability, reduced maintenance, and enhanced pilot confidence in fuel readings
This collaboration underscores Raisbeck and CiES’s commitment to providing King Air operators with innovative, mission-ready solutions that enhance reliability, reduce downtime, and deliver peace of mind.