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Precision Airmotive LLC

RSA® Fuel Injection Systems for General Aviation Engines

Authorized Distributor for Precision Airmotive

Precision Airmotive LLC Logo

Airpart Supply is an authorized distributor for Precision Airmotive LLC, the Original Equipment Manufacturer of RSA® fuel injection systems for general aviation engines.

Precision Airmotive LLC manufactures fuel injection systems for certified and experimental aircraft, providing the aviation community with factory new, rebuilt, and overhauled RSA® fuel injection servos, flow dividers, and fuel nozzles. The company is recognized worldwide for engineering excellence in fuel control systems for Lycoming and Continental aircraft engines.

As the OEM of RSA fuel injection technology, Precision Airmotive acquired the RSA product line from Bendix in 1988 and continues to manufacture these proven systems to the latest engine manufacturers' specifications. All units are dynamically tested to verify fuel flow from idle to full throttle, ensuring peak performance, reliability, and airworthiness compliance.

Airpart Supply maintains comprehensive stock of Precision Airmotive components, including complete fuel injection servos, flow dividers, nozzles, gaskets, and repair kits for immediate availability throughout Europe.

Precision Airmotive Product Range

RSA-5 Series Servos

4-Cylinder & Low-Output 6-Cylinder Engines

RSA-5 series fuel injection servos for 4-cylinder and low-output 6-cylinder Lycoming and Continental engines. Available in new, rebuilt, and overhauled configurations.

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RSA-10 Series Servos

High-Output 6 & 8-Cylinder Engines

RSA-10 series fuel injection servos for high-output 6-cylinder and 8-cylinder Lycoming engines. Designed for demanding applications with superior fuel metering precision.

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Flow Dividers

Precision Fuel Distribution

Flow dividers for accurate fuel distribution to individual cylinders. Manufactured to OEM specifications with new and overhauled options available.

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Fuel Nozzles

Injection Nozzles & Assemblies

Factory new and overhauled fuel injection nozzles for precise fuel atomization and cylinder-to-cylinder distribution. Complete nozzle assemblies and individual components.

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Repair Kits & Parts

Complete Overhaul Kits

Comprehensive repair kits including gaskets, seals, diaphragms, and service parts for RSA fuel injection system maintenance and overhaul operations.

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Silver Hawk EX®

Experimental Aircraft Systems

Silver Hawk EX non-certified fuel injection systems for experimental aircraft. Proven technology with decades of fuel metering engineering excellence.

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Why Choose Precision Airmotive Fuel Systems?

Original Equipment Manufacturer Heritage

Precision Airmotive LLC is the Original Equipment Manufacturer of RSA® fuel injection systems, providing authentic OEM parts and complete systems to engine manufacturers worldwide. After acquiring the RSA product line from Bendix in 1988, Precision Airmotive has continued the legacy of engineering excellence in aircraft fuel control systems. This OEM status ensures that every component meets the latest engine manufacturers' specifications and maintains the highest standards of quality and airworthiness.

Comprehensive Engine Compatibility

RSA fuel injection systems are installed on a wide range of Lycoming and Continental aircraft engines. The RSA-5 series serves 4-cylinder engines and low-output 6-cylinder applications, while the RSA-10 series is designed for high-output 6-cylinder and 8-cylinder engines. Compatible Lycoming engine series include IO, (L)IO, TIO, (L)TIO, AEIO, AIO, IGO, IVO, and HIO models. Continental engine applications include LTSIO-360-RB, TSIO-360-RB, and other fuel-injected variants.

Factory New, Rebuilt & Overhauled Options

Precision Airmotive manufactures factory new fuel injection components and also provides rebuilt and overhauled systems through certified facilities. All rebuilt and overhauled units are processed by expert assembly technicians using OEM specifications and genuine Precision Airmotive parts. Each unit undergoes dynamic testing to verify proper fuel flow characteristics from idle to full throttle, ensuring reliable engine performance across all operating conditions.

Complete Fuel Injection System Components

  • RSA Fuel Injection Servos: Complete fuel metering units available in RSA-5 and RSA-10 series configurations for different engine applications
  • Flow Dividers: Precision-manufactured flow dividers for accurate fuel distribution to individual cylinders, ensuring consistent cylinder-to-cylinder fuel delivery
  • Fuel Nozzles: Factory new and overhauled injection nozzles with precise atomization characteristics for optimal combustion efficiency
  • Repair Kits: Complete overhaul kits including gaskets, seals, diaphragms, and service parts for field maintenance and certified repair operations
  • Replacement Parts: Individual components including servo plugs, gaskets, screens, and other service parts for system maintenance

Dynamic Testing & Quality Assurance

Every Precision Airmotive fuel injection servo undergoes comprehensive dynamic testing to verify fuel flow characteristics across the complete operating range. Testing procedures validate proper fuel metering from idle conditions through full throttle operation, confirming that each unit meets peak performance specifications. This rigorous quality assurance process ensures that fuel injection systems deliver consistent, reliable operation throughout the engine's power envelope.

Experimental Aircraft Solutions

The Silver Hawk EX® non-certified fuel injection system provides experimental aircraft builders with proven fuel metering technology. Drawing from decades of engineering experience, the Silver Hawk EX kit delivers precise, dependable, and reliable fuel metering for homebuilt and experimental applications. Available in EX-5 series configurations that parallel the certified RSA-5 design, these systems offer experimental builders access to professional-grade fuel injection technology.

Global Distribution Network

Precision Airmotive products are distributed through a worldwide network of factory-authorized distributors including Airpart Supply's facilities in Ireland and the United Kingdom. This distribution infrastructure ensures that maintenance facilities, Cessna, Piper, Beechcraft, and other general aviation operators have access to genuine OEM parts and complete systems with minimal lead times.

Technical Support & Documentation

Precision Airmotive provides comprehensive technical support including component maintenance manuals, service bulletins, parts catalogs, and training materials for authorized service facilities. Service Information Letters (SILs) and technical publications keep maintenance personnel informed of the latest updates, modifications, and service procedures for RSA fuel injection systems.

Airworthiness Compliance & Approvals

All Precision Airmotive certified components comply with FAA airworthiness requirements and are manufactured under approved quality management systems. RSA fuel injection systems maintain proper certification for installation on type-certificated aircraft, ensuring compliance with regulatory standards for general aviation operations throughout Europe and worldwide.

European Availability Through Airpart Supply

As an authorized European distributor for Precision Airmotive, Airpart Supply maintains comprehensive inventory at our Dublin, Ireland facility, ensuring rapid availability of fuel injection servos, flow dividers, nozzles, and repair kits throughout the European Union. Our technical sales team provides expert support for part selection, compatibility verification, and installation guidance for Lycoming and Continental engine applications.

Maintain Peak Engine Performance with RSA Fuel Systems

Contact Airpart Supply for competitive pricing on Precision Airmotive fuel injection components. Our technical team can assist with servo selection, overhaul options, and complete fuel system solutions.

Email: [email protected]

Phone: +353 1 699 4406