Early Rotary Engines

Published on 22 April 2026 at 14:32

My latest project will be disassembly and inspection of multiple early rotary engines. We have two 12a's and two older 4 port 13b's. These were the customer's spare engines that were in storage. Crazy to think that these engines are 40 and 50 years old. Despite that, they still look great and will be ready for whatever the future holds for them. 

Update 9/15/2026: Of the 4 engines one 12A and one 13B has been built. Below are some finished build pictures. They cleaned up pretty nice and should be two good runners for years to come.