Engine Identificaiton
No, I mean I would need a picture of Ridlon's engine to identify it. Back in 1970, I had the choice of buying a Merco .61 or an Enya .60III-TV engine for my pattern plane project. I held both of them in my hand at the local hobby shop and bought the Enya .60 for a whopping $42.50. It was the right choice. Nearly 53 years later, it is still in excellent condition and runs great.