UltraVair LLC was located in Cedar Rapids, Iowa.

-It modified engines like the 6-cylinder Corvair by 1/3, leaving them with 2 cylinders.

-These engines were manufactured from 2003 to 2015. They used parts from the Chevrolet Corvair and VW cylinders and pistons. The carburetor is from Harley-Davidson.

-It produces 35 HP at 3,500 rpm, without reduction gear and is air-cooled.

-It weighs about 80 lbs dry, and the Corvair replacement is easily obtained.

“Ultra Vair”

-It can be clearly seen with the VW cylinders and heads cut off.

"Another view of the Ultra Vair"

“Ultra Vair engine, side view”

-Special engine for ULM ultralight aircraft, easy to start and smooth running.

-UltraVair ceased production in 2015.