Rubber roof is BILLOWING!
Cousin following me saw where my roof was floating and billowing high enough that he couldn't even see my ac and he was a good ways behind me. Wife saw it too as I turned off the highway toward the ho...
Forum Discussion
fj12ryder wrote:
But unless you're creating a vacuum under the membrane there has to be a hole to allow the pressure to try and equalize. He just hasn't found it yet.
You don't need air "pressurizing" underneath the membrane to cause it to lift. Try this experiment. Take a regular piece of printer paper and hold it between your thumb and index finger of each hand along a short side, letting the rest hang down. Now, simply blow across the top of the paper. You'll see it lift right up. Use a drinking straw to more closely direct the airflow and you'll see that you don't need =any= air flowing underneath to create lift, only the air flowing across the top. Now, if you're talking enough lift to =fly=, yes, you need airflow across both sides of the airfoil for maximum lift. I'm not saying that there's =not= air getting underneath the roof membrane; I =am= saying that it's not necessary to create the effect.
Lyle
