SR71,
The suggestion was that a bi-plane would automatically have twice the lift of a mono-plane with half the wing area- Clearly not true as the airflow interference of the bi-plane configuration reduces it's efficiency.
In any case, doesn't Reynolds affect amongst other things mean that simply doubling the area of a wing DOESN'T automatically double the lift (A of A and Rho being equal)?
John, interesting CL discussion (I'm certainly learning a lot), but obviously completely off topic. Could we carve it off to a seperate thread?