Here is what I came up with for the Block Plane. I used extrude for the plane from a single block, the only exception being the wing support cylinders, axle, wheels, and propeller. Okay actually that is a lot of stuff that I had to add. Fun to do though. 
I think I’ll 3d print this sucker and sell it at Walmart! Oh yeah.
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Wow that’s a nice plane ! Wish I could do the same (My plane was a joke haha).