STEAM HD420A

Name: Wenzhou Xinyue Technology Innovation Co,ltd STEAM HD420A
Brand: Xinyue

The STEAM HD420A is a pair of 420mm carbon-fiber main rotor blades for 420 radio-controlled helicopters. Designed for aggressive 3D flight, the blades combine a symmetrical airfoil with rigid molding technology to provide agility, stability and increased resistance to twisting.

XinyueDrone motor

Get a free quote

Product overview

The STEAM HD420A carbon-fiber main rotor blades are designed for 420 radio-controlled helicopters. Their symmetrical airfoil is shaped for aggressive 3D flight, combining agility with stability. Rigid molding technology increases resistance to twisting, helping prevent interference from unstable airflow at the blade tips while reducing blade noise and power loss.

Each blade measures 420mm from the mounting hole to the tip, with a width of 34-36mm and a blade-root thickness of ≥5mm. The mounting-hole diameter is 3mm. The HD420A is supplied as one pair of 420mm main rotor blades.

Motors & ESCs

Specifications

STEAM HD420A specifications
Specification	Value & conditions
Model	HD420A
Product type and material	420mm carbon-fiber main rotor blades
Application	For 420 radio-controlled helicopters
Flight design	New airfoil designed for aggressive 3D flight, combining agility and stability
Construction and torsional resistance	Rigid molding technology substantially increases blade resistance to twisting
Aerodynamic characteristics	Prevents interference from unstable airflow at the blade tips and reduces blade noise and power loss
Length	420mmMeasured from the mounting hole to the blade tip.
Blade-root thickness	≥5mm
Blade width	34-36mm
Mounting-hole diameter	3mm
Airfoil	Symmetrical
Supplied contents	One pair of 420mm main rotor blades