# RW-1Nms
*bus . products*

RW-1Nms is a reaction wheel for imaging satellites requiring platform stability and precise attitude control.

## Specifications
- **manufacturer**: dragonfly
- **deployment context**: orbital
- **entity type**: bus
- **last verified date**: 2026-05-28
- **verified by**: operator
- **claim status**: unclaimed
- **provider**: dragonfly
- **attributes**: {"kind":"bus","product_status":null,"manufacturer":"dragonfly","description":"RW-1Nms is a reaction wheel for imaging satellites requiring platform stability and precise attitude control.","sensor":null,"bus":null,"ground_segment":null,"launcher":null,"analysis_service":null,"deployment_context":"orbital"}

## Editorial
RW-1Nms is Dragonfly Aerospace's reaction wheel for imaging satellites that require platform stability, precise control, and minimized disturbance torques.[^dragonfly-rw-1nms-page]

The product is ITAR-free and TRL 9, and Dragonfly's components overview also lists the component family as ITAR-free and TRL 9.[^dragonfly-rw-1nms-page][^dragonfly-components-overview]

It provides 1.0 Nms angular momentum at 28.5 V and has a speed range of +/-10000 RPM.[^dragonfly-rw-1nms-page]

The listed torque is +/-39 mNm, with a +/-74 mNm value marked for Version 2.[^dragonfly-rw-1nms-page]

Control modes are current, speed, and torque, with speed and torque control rates of 10 Hz.[^dragonfly-rw-1nms-page]

Imaging-mode steady-state speed error is listed below 0.5 RPM, and steady-state torque-control momentum error is listed below 5.09e-5 Nms.[^dragonfly-rw-1nms-page]

Interfaces are CAN and RS485, supply voltage is 12 to 36 V, power at 0.1 Nms is approximately 1.2 W, and peak power is 108 W.[^dragonfly-rw-1nms-page]

The operating temperature range is -20 C to +60 C, dimensions are 102.8 x 100 x 50 mm for Version 2, and mass is 1.0 kg.[^dragonfly-rw-1nms-page]

Environmental and reliability features include 14.14 g RMS vibration under GEVS, component-level radiation tolerance above 20 kRad, ABEC 7 bearings, over-temperature and current protection, latch-up protection, regenerative braking, and control timing knowledge below 1 ms.[^dragonfly-rw-1nms-page]

## Sources
- [dragonfly-rw-1nms-page] | Dragonfly Aerospace RW-1Nms technical specification page | https://dragonflyaerospace.com/components/rw-1nms/ | tier=operator-datasheet | accessed=2026-05-28 | author=Dragonfly Aerospace
  Official product page with technical specification table; asterisks identify Version 2 values for some specifications.
- [dragonfly-components-overview] | Dragonfly Aerospace satellite components overview | https://dragonflyaerospace.com/components/ | tier=operator-marketing | accessed=2026-05-28 | author=Dragonfly Aerospace
  Official components index cross-checking ITAR-free and TRL summary labels.

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Source: https://eo-atlas.org/products/bus/rw-1nms
Maintainer: SpectraWorks B.V. (CC-BY 4.0)