RWS, Inc is the world's leading manufacturer of gear reduction drives and
engine controllers for Mazda engine aviation use. Click on the links below
for details on our current and upcoming products.
- Aero Engine Extras - Engine Accessories
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A choice selection of additional accessories for your aviation
auto engine conversion. Includes EFI
Fuel Pumps and AN-6 fuel pump
adaptors.
Gear Reduction Drives
(PSRU)
We offer two versions of gear drives, the RD-1B 2.17:1 ratio drive, suitable for use in
aviation and airboat applications. and the RD-1C
2.85:1 drive, for Renesis engines and for applications where a long prop is required.

RD-1B installed on Bernie Kerr's RV-9 (photo by Bernie Kerr)
EC2 Engine Controller
Developed specifically for aircraft use and available for many
different engines including rotary, Subaru, Chevy, Ford and BMW.

EM2 and EC2 installed in Bernie Kerr's RV-9 Panel (photo by
Bernie Kerr)
- EM2 Engine Monitor
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- This instrument is
designed with the experimental aircraft pilot in mind. We
believe we offer more features for less cost, when compared to
any competitive product.
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- RWS Engine Controller
Software Upgrade Service
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Get the latest software enhancements for your EC2 engine
controller.
- Future Products
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See what is coming up from RWS.
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