I would have posted this in the Homebuilt Forum, but I figured that since I am asking about an Ultralight engine, I should post here.

I have a set of Affordaplane plans. The plans show a Rotax 477 engine mount, but I understand that Rotax (along with everyone else) has gotten out of the 2-stroke Ultralight (UL) engine business. A 1/2 VW is a possibility, but I'm not sold on it.

What is current "state of the art" in UL engines? What do UL manufacturers currently use on their new products, and what do UL builders put on the airframe of their ULs?

Is there still a 60-ish pound, 40-ish (or better) HP engine out there in the new market? I'm not opposed to used. I just want manufacturer support for my engine, if I need it.

Thanks in advance.

John