70219-04901-051 Extended Main Rotor Control Rod – Sikorsky H?60/S?70 Swashplate?to?Blade Link

Description

The 70219-04901-051 Main Rotor Control Rod is a precision?engineered flight?control linkage used on Sikorsky H?60 and S?70 series helicopters. This component transmits mechanical inputs from the swashplate to the main rotor pitch horns, enabling accurate blade pitch adjustments essential for lift generation, maneuvering, and overall rotor stability. Constructed from high?strength alloys with corrosion?resistant rod ends and spherical bearings, it is engineered to withstand continuous cyclic loading, vibration, and tensile forces encountered during demanding helicopter operations. The assembly incorporates adjustable end fittings to ensure proper alignment, preload, and smooth control response throughout the aircraft’s flight envelope.

Key Specs:

Manufacturer: Sikorsky Aircraft (CAGE 78286)
Function: Transfers swashplate motion to main rotor pitch horns
Category: Main rotor flight?control linkage
Applications: Sikorsky H?60 / S?70 helicopter platforms
Dimensions: Approx. 27" x 3" x 3" (typical main rotor control rod size)
Weight: ~4.2 lbs
Compliance: Manufactured to military and aerospace?grade rotor?control standards
This main rotor control rod ensures precise pitch authority, stable rotor performance, and long?term reliability across military and commercial Sikorsky helicopter fleets.

Features

• Extended?length design for specific rotor?control geometry.
• Engineered for consistent load transfer during pitch changes.
• Precision rod ends provide smooth, low?friction movement.
• Built to resist vibration and high?cycle fatigue.
• Corrosion?protected hardware for durability.
• Adjustable fittings ensure accurate pitch?control setup.
• Supports stable rotor performance across all flight phases.

Frequently Asked Questions