HR04, HC7 & HC9 Reaction Wheel Assemblies
Honeywell Aerospace
The HR04, HC7, and HC9 are a series of reaction wheel assemblies designed for spacecraft attitude control, offering flexibility in packaging, momentum, and torque options.
Key figurescomparable across the catalogue
- Power
- 5 W
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- Gen 1 qualification (HC7 and HC9)
- Completed in June 2021
About
The HR04, HC7, and HC9 reaction wheel assemblies are designed to control the attitude of spacecraft and satellites by using electric motors to spin flywheels, generating momentum to tilt or point the spacecraft. These assemblies are particularly suitable for applications like communications satellites that require stable pointing at fixed ground targets. They offer extreme flexibility in packaging options and provide precision performance supported by advanced drive technology, all within a greatly reduced package size. The HC7 and HC9 models are specifically tailored for New Space price points, offering flexible momentum and torque options. Key advantages include high-output, low-jitter performance for precise position and pointing control, plug-and-play attitude control system (ACS) insertion, minimized vehicle integration time, and application-scalable optimization. Integrated Honeywell technologies include a proven spin-bearing design, insensitivity to low or transitional operational speeds, optimized momentum density packaging, and a flexible vehicle digital interface. Gen 1 Qualification for the HC7 and HC9 was completed in June 2021.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.