information An excellent video for GA folk converting to RAA and meeting the Rotax for the first time.

This one is great. It goes into a lot of detail explaining the differences between the Rotax and Continentals we are all used to. A lot to learn and see.

Covered it pretty well, I thought.

Might have added that once you remove the need for bulky fins at the heads (where most of the heat is) by liquid cooling, the cylinders can be closer together, so the crankshaft can be shorter and lighter, so the crankcase can be shorter...and so on.