Ah yes,,the speed....
200 on a 9X8...some folks say you can outrun your prop because of the airfoil on the front. Some folks say you can't achieve the theoretical speed because of efficiency. How much efficiency does the airfoil on the prop give?? Who knows?? But I'll bet that Jett 50 aint turning 26500, so there must be a great deal of efficiency from the airfoil on the prop...or he ain't doing 200.