I am looking to buy a gas engine but i am not all that familiar with the engines out there. The ones i know of are Brisson, DA, Zenoah, First place engines, 3w, Bme, and Zdz. Is this about all of them are did i miss some?

How do these brands compare to each other as far as power weight and reliability?

Why does the Bme use a single bolt prop hub while most of the other us the other type of hub? I am most intrested in the single bolt hub because its easier to mout the prop.

Can the others be converted to single bolt hubs?

Thanks

Grant