us1hydro - I don't know anything about the older Wankels, but I'm serious when I said that I was getting 6-8 minute flights on 10 oz. of fuel. I hope that B-24 has HUGE nacelles.

I don't know that you would have a lot of excess power, but they would fly the B-24 depending on how heavy it was. My Wankel was a little less powerful than a Webra Speed .32, but it seemed to have good power for a .30.