?unique=a63f1de)
105-130000-2 – Textron Aviation OEM Aileron Assembly
Available now on the Airparts.aero Marketplace.
LEGACY PART - No longer in production
Overview
The Textron Aviation 105-130000-2 is the OEM, flight-critical aileron assembly for the Beechcraft King Air 300 and 350 series aircraft. As a primary flight control surface, the aileron is responsible for the direct control of the aircraft's roll axis. This assembly is an impeccably engineered structure, designed to translate pilot or autopilot inputs into precise aerodynamic forces that create a rolling moment. Its construction, balance, and aerodynamic profile are all manufactured to exacting tolerances, as any deviation can have profound effects on the aircraft's handling characteristics and safety, particularly at the high speeds at which the King Air operates.
This aileron is built using a conventional semi-monocoque design, featuring a main spar at the leading edge, multiple formed ribs to create the airfoil shape, and a riveted Alclad aluminum skin. Critically, it is both aerodynamically and mass balanced at the factory. This precise distribution of weight, primarily through the placement of its leading-edge spar and internal balance weights, is essential for preventing the onset of control surface flutter—a catastrophic aeroelastic phenomenon. Delivered with a factory-applied corrosion-inhibiting primer, this assembly is ready for the final steps of installation, rigging, and painting.
Key Features
OEM Certification: A genuine Textron Aviation (Beechcraft) part, guaranteeing conformity to the original type certificate design, ensuring airworthiness, proper fit, and aerodynamic performance.
All-Metal Construction: Fabricated from high-strength, aerospace-grade Alclad aluminum alloys for an optimal balance of strength, weight, and fatigue resistance.
Factory Mass Balanced: Precisely mass balanced at the factory on certified jigs to ensure the center of gravity is correctly located relative to the hinge line, a critical requirement for flutter prevention.
Superior Corrosion Protection: Treated with a chemical conversion coating and coated with a high-performance epoxy primer, providing a robust defense against environmental corrosion.
Ready for Installation: A complete assembly including the main spar, ribs, skin, and trailing edge, ready for installation of hinges, actuators, and the trim tab assembly.
Technical Specifications
Part Number: 105-130000-2
Component Type: Aileron Assembly (Primary Flight Control Surface)
OEM Manufacturer: Textron Aviation (Beechcraft)
Structure: Semi-monocoque with main spar, formed ribs, and stressed skin.
Material (Skin): 2024-T3 Alclad Aluminum Sheet.
Material (Spar/Structure): High-strength aluminum alloy extrusions and formed sheet.
Finish: Corrosion-inhibiting epoxy primer (typically green or yellow).
Design Features: Integrated provisions for mass balance weights, hinge points, and control rod attachments.
Aircraft Compatibility
Beechcraft (Textron Aviation): King Air 300, King Air B300 (350), King Air B300C (350C)
Note: This is a major flight control surface. The aircraft's specific Illustrated Parts Catalog (IPC) for the given serial number is the final and absolute authority for determining part applicability. LH and RH part numbers may be different.
Applications
Primary Roll Control: As one of a pair, its deflection creates an asymmetrical lift profile on the wings, inducing a controlled roll about the aircraft's longitudinal axis.
Major Structural Repair: Used for the complete replacement of a damaged or corroded aileron.
Why Choose 105-130000-2?
A flight control surface is arguably one of the most critical components on an aircraft. There is no substitute for an OEM part. Using a non-certified or improperly repaired aileron introduces an extreme risk of catastrophic failure. The dangers include incorrect aerodynamic profile leading to unpredictable flight characteristics, and improper mass balancing which can lead to destructive flutter, causing the surface to tear away from the wing in flight. The Textron Aviation 105-130000-2 is built on the original factory jigs from the specified materials and is balanced according to the type certificate data. Investing in this OEM assembly is a fundamental requirement for ensuring the safety and airworthiness of the aircraft.
The engineering imperative behind the 105-130000-2 aileron's design is the prevention of aeroelastic flutter. Flutter is a self-sustaining, divergent oscillation that occurs when aerodynamic forces, elastic structural forces, and inertial forces couple together destructively. For a control surface, the critical relationship is between the chordwise center of gravity (CG) and the hinge line. In this aileron, the main spar and internal balance weights are strategically placed to ensure the CG is located at, or slightly forward of, the hinge line. When the CG is behind the hinge line, an upward deflection of the aileron (due to turbulence, for example) creates an upward inertial force that twists the aileron even further up, which in turn generates a greater aerodynamic force, creating a feedback loop that can cause the amplitude of the oscillation to increase exponentially, leading to catastrophic structural failure in seconds. The factory-balancing of this OEM part is a certified process that guarantees this critical CG placement.
Note: The 105-130000-2 is a flight-critical assembly. Installation must be performed by a certified A&P/IA mechanic with experience on type. After installation, the entire flight control system must be professionally rigged, a full range of motion must be verified, and a control surface balance check must be performed in strict accordance with the Textron Aviation King Air Maintenance Manual. Failure to comply with these procedures can result in a catastrophic loss of control.
Documentation
No public-facing OEM or regulatory specification sheet was located for this specific part number. All authoritative technical data, installation procedures, rigging specifications, and balance criteria are contained within the official Textron Aviation King Air 300/350 Series Maintenance Manual and Structural Repair Manual.
