Valley Engineering Introduction

Valley Engineering, LLC was formed in 1998 to manufacture and sell the prop speed reductions units for VW engines. These PSRU's have undergone ten years of research and development. The company is a father and son partnership between Gene Smith, mechanical engineer and retired crop duster, and his son, Larry Smith. These units were designed and developed to meet the performance needs of their ultralights, trainers and light planes that they had been building since 1993. Testing showed these reduction units to be very strong and lightweight, yet they yielded outstanding and unmatched performance.

We are proud to introduce our new Series 3 poly-v reduction units specifically designed for the high-power engines available in our Premium Engine packages. This new drive comes in wide range of ratios, making it easy for us to custom design the drive to fit your aircraft's specific needs.

For smaller engines, we now offer the Valley Engineering Poly-V reduction drive that was introduced at Oshkosh '06 on the Back Yard Flyer UL/SP. Go to our Back Yard Flyer UL/SP page for more information.

(The image below is a thumbnail. Just click on the image to see a much larger image.)