I don't have a degree in engineering, but I do know that the weight of a gallon of gas is 8 lbs.
I also know what an 18 gallon gas tank looks like, because it's under my car.

My question is where is the gas tank on this thing?

Nowhere does it list a spec for fuel capacity, or total max lift (weight/payload)? I told Orville, and I told Wilbur, this thing won't never fly.

Where's that flyboy on this board with some real airplane knowledge?