CalumetAir - Prerotators, Seat Tanks and Airworthiness Certifications

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Top Quality Seat Tanks-Offered Factory Direct
Our Famous Seat Tanks CalumetAir is the proud manufacturer of the very finest seat tanks available. Our seat tanks are used by several major gyroplane manufacturers and are now being sold factory direct. These are the famous and much sought after seat tanks originally manufactured by SnoBird Aircraft... Learn More Wunderlich Prerotators CalumetAir Inc. is the exclusive manufacturer of the world famous Wunderlich Flex Shaft Prerotator Learn More		DAR Services A Designated Airworthiness Representative is a person, appointed by the FAA, who is authorized to perform some functions normally attributed to an FAA Aviation Safety Inspector (ASI). As a DAR, I strive to offer the most painless and trouble-free certification service possible. Learn More
Calumetair has a long history in the world of Sport Aviation. Founder Tom Milton is now offering the original SnoBird seat tanks factory direct. Check out our selection!

The Famous Wunderlich Prerotator

We are the exclusive manufacturer of the popular Wunderlich Prerotator

The Wunderlich Flex Shaft prerotator has been the world standard prerotator for over 30 years.

Have an unusual engine?

We sell all of our prerotator parts and components separately as a service to the do-it-yourself builder.